1. VMAP
  2. Data
  3. Data Dictionary
  4. Brain Imaging
  5. Diffusion Tensor Imaging
  6. DTI ROI Freewater ANTS Fractional Anisotropy Middle Occipital Gyrus Transcallosal Tract Template Corrected
Main Category Category Variable Label Units Type Comments Derivation Level
Clinical & Demographic record_info map_id MAP ID
Clinical & Demographic Demographics age Age yr The difference, in years, between `medhx.date` and `dob`, rounded down.
Clinical & Demographic Demographics sex_factor Sex
Level Label
1 Male
2 Female
Clinical & Demographic Demographics education Education yr
Clinical & Demographic Demographics race_factor Race
Level Label
1 White/Caucasian
2 Black/African American
3 American Indian/Alaskan Native
4 Asian
5 Other
Clinical & Demographic Demographics ethnicity_factor Ethnicity
Level Label
1 Hispanic or Latino
2 Not Hispanic or Latino
Clinical & Demographic Demographics raceethnicity_factor Two-Level Race/Ethnicity Factor. When race is 1 ("White/Caucasian") and ethnicity is 0 ("Not Hispanic or Latino"), this variable will be 1 ("Non-Hispanic White"). Otherwise, this variable will be 2 ("Other"). If either race or ethnicity is missing, this variable will be NA.
Level Label
1 Non-Hispanic White
2 Other
Clinical & Demographic Demographics diagnosis_factor Cognitive Diagnosis
Level Label
1 Normal
2 Ambiguous At Risk
3 MCI
4 Dementia
Clinical & Demographic Demographics diagnosis_factor_base Baseline Cognitive Diagnosis
Level Label
1 Normal
2 Ambiguous At Risk
3 MCI
Genetics APOE Genotype alleles_factor ApoE Alleles
Level Label
1 E3/E3
2 E2/E2, E2/E3
3 E2/E4
4 E3/E4, E4/E4
Genetics APOE Genotype apoe4count Count of ApoE E4 alleles The number of ApoE E4 alleles.
Genetics APOE Genotype apoe4pos_factor APOE4 Positive Factor. If `apoe4count` is greater than zero, this variable is TRUE. If `apoe4count` is zero, this variable is FALSE. If `apoe4count` is missing, this variable is NA.
Level Label
1 No
2 Yes
Genetics APOE Genotype apoe2count Count of ApoE E2 Alleles The number of ApoE E2 alleles.
Genetics APOE Genotype apoe2pos_factor APOE2 Positive Factor. If `apoe2count` is greater than zero, this variable is TRUE. If `apoe2count` is zero, this variable is FALSE. If `apoe2count` is missing, this variable is NA.
Level Label
1 No
2 Yes
Clinical & Demographic Medical History height Physical Exam - Height cm
Clinical & Demographic Medical History weight Physical Exam - Weight kg
Clinical & Demographic Medical History bmi Physical Exam - BMI kg/m^2 `weight / (height / 100)^2`
Clinical & Demographic Medical History bsa Physical Exam - BSA m^2 `round(weight^0.425 * height^0.725 * 0.007184, 2)`
Clinical & Demographic Medical History sbp Mean of First Two Echo SBP Readings mmHg Average of `echo.sbp` and `echo.sbp2`.
Clinical & Demographic Medical History dbp Mean of First Two Echo DBP Readings mmHg Average of `echo.dbp` and `echo.dbp2`.
Clinical & Demographic Medical History pp Pulse Pressure mmHg `sbp - dbp`
Clinical & Demographic Medical History cvd_factor Cardiovascular Disease Factor. If `mhx.angina==1` or `mhx.cad==1` or `mhx.bypass==1` or `mhx.mi==1` or `mhx.hf==1` or `mhx.angio==1`, this variable is 1 ("Yes"). If `mhx.angina==0` and `mhx.cad==0` and `mhx.bypass==0` and `mhx.mi==0` and `mhx.hf==0` and `mhx.angio==0`, this variable is 0 ("No"). Otherwise, this variable is NA.
Level Label
1 No
2 Yes
Clinical & Demographic Medical History afib_factor Atrial Fibrillation Factor. If `mhx.afib` is missing and `afibecho` is missing, this variable is NA. If only `afibecho` is missing, this variable is equal to `mhx.afib`. If `afibecho==1` or `mhx.afib==1`, this variable is 1 ("Yes"). Otherwise, this variable is equal to `mhx.afib`.
Level Label
1 No
2 Yes
Clinical & Demographic Medical History diabetes_factor Diabetes Factor. If `diabetesa1c` and `diabetesrx` and `diabetesglucose` are missing, this variable is NA. If any `diabetesa1c`, `diabetesrx`, or `diabetesglucose` is 1, this variable is 1 ("Yes"). If `diabetesa1c` is 0 or missing and `diabetesrx` is 0 and `diabetesglucose` is 0, this variable is 0 ("No").
Level Label
1 No
2 Yes
Clinical & Demographic Medical History htnrx_factor Anti-Hypertensive Medication Use Factor. If the `vmac.id` is listed in the corresponding table, this variable is 1 ("Yes"). Otherwise, 2 ("No") or NA.
Level Label
1 No
2 Yes
Clinical & Demographic Medical History hypertensive_factor Hypertension Solely Based on Blood Pressure Factor. If `sbp` and `dbp` are missing, this variable is NA. If `sbp>=140` or `dbp>=90`, this variable is 1 ("Yes"). If `sbp<140` and `dbp<90`, this variable is 0 ("No"). Otherwise, this variable is NA.
Level Label
1 No
2 Yes
Clinical & Demographic Medical History htn_factor Hypertension Factor. If `hypertensive` and `htnrx` are missing, this variable is NA. If `hypertensive==1` or `htnrx==1`, this variable is 1 ("Yes"). If `hypertensive==0 and `htnrx==0`, this variable is 0 ("No"). Otherwise, this variable is NA.
Level Label
1 No
2 Yes
Clinical & Demographic Medical History currentsmoking_factor Current Smoker Factor. If `mhx.tobac==1` and `mhx.tobac.quit==-8888` or `mhx.tobac.quit >= medhx.date.year - 1`, this variable is 1 ("Yes"). Otherwise, this variable is 0 ("No"). If `mhx.tobac` is missing, this variable is NA.
Level Label
1 No
2 Yes
Clinical & Demographic Medical History dyslipidemia_factor Dyslipidemia Factor. If `bld.c.chol>=200` or `bld.c.hdlc<40` or `cholesterolrx==1`, this variable is 1 ("Yes"). If `bld.c.chol<200` and `bld.c.hdlc>=40` or `cholesterolrx==0`, this variable is 0 ("No"). Otherwise, this variable is NA.
Level Label
1 No
2 Yes
Clinical & Demographic Medical History fsrp Framingham Stroke Risk Profile Sum of `fsrp.age.pts`, `fsrp.sbp.pts`, `fsrp.diabetes.pts`, `fsrp.cigs.pts`, `fsrp.cvd.pts`, `fsrp.afib.pts`, and `fsrp.lvh.pts`.
Cognition Cognitive Complaint Module faq Functional Activities Questionnaire (10 items) If any of `faq01` to `faq10` are missing, this variable is NA. Otherwise, this variable is the sum of `faq01` to `faq10`, rounded to the nearest tenth.
Cognition Cognitive Complaint Module fcadl Functional Capacities for Activities of Daily Living (50 items) If any of `fcadl01` to `fcadl50` are missing, this variable is NA. Otherwise, this variable is the sum of `fcadl01` to `fcadl50`, rounded to the nearest tenth.
Cognition Cognitive Complaint Module cogdif_tot Cognitive Difficulties Questionnaire (41 items) If more than 15% of the variables `cogdif01` to `cogdif41` are missing, this variable is NA. Otherwise, this variable is the sum of `cogdif01` to `cogdif41`, rounded to the nearest tenth.
Cognition Cognitive Complaint Module mfq_tot Memory Functioning Questionnaire If more than 15% of the variables `mfq01.r`, `mfq02a.r`, `mfq02b.r`, `mfq02c.r`, `mfq02d.r`, `mfq02e.r`, `mfq02f.r`, `mfq02g.r`, `mfq02h.r`, `mfq02i.r`, `mfq02j.r`, `mfq02k.r`, `mfq02l.r`, `mfq02m.r`, `mfq02n.r`, `mfq02o.r`, `mfq02p.r`, `mfq02q.r`, `mfq02r.r`, `mfq03a.r`, `mfq03b.r`, `mfq03c.r`, `mfq03d.r`, `mfq03e.r`, `mfq04a.r`, `mfq04b.r`, `mfq04c.r`, `mfq04d.r`, `mfq04e.r`, `mfq05a.r`, `mfq05b.r`, `mfq05c.r`, `mfq05d.r`,`mfq06a.r`, `mfq06b.r`, `mfq06c.r`, `mfq06d.r`, `mfq06e.r`, `mfq06f.r`, `mfq06g.r`, `mfq06h.r`, `mfq06i.r`, `mfq06j.r`, `mfq06k.r`, `mfq06l.r`, `mfq06m.r`, `mfq06n.r`, `mfq06o.r`, `mfq06p.r`, `mfq06q.r`, `mfq06r.r`, `mfq08a.r`, `mfq08b.r`, `mfq08c.r`, `mfq08d.r`, and `mfq08e.r` are missing, this variable is NA. Otherwise, this variable is the sum of `mfq01.r`, `mfq02a.r`, `mfq02b.r`, `mfq02c.r`, `mfq02d.r`, `mfq02e.r`, `mfq02f.r`, `mfq02g.r`, `mfq02h.r`, `mfq02i.r`, `mfq02j.r`, `mfq02k.r`, `mfq02l.r`, `mfq02m.r`, `mfq02n.r`, `mfq02o.r`, `mfq02p.r`, `mfq02q.r`, `mfq02r.r`, `mfq03a.r`, `mfq03b.r`, `mfq03c.r`, `mfq03d.r`, `mfq03e.r`, `mfq04a.r`, `mfq04b.r`, `mfq04c.r`, `mfq04d.r`, `mfq04e.r`, `mfq05a.r`, `mfq05b.r`, `mfq05c.r`, `mfq05d.r`,`mfq06a.r`, `mfq06b.r`, `mfq06c.r`, `mfq06d.r`, `mfq06e.r`, `mfq06f.r`, `mfq06g.r`, `mfq06h.r`, `mfq06i.r`, `mfq06j.r`, `mfq06k.r`, `mfq06l.r`, `mfq06m.r`, `mfq06n.r`, `mfq06o.r`, `mfq06p.r`, `mfq06q.r`, `mfq06r.r`, `mfq08a.r`, `mfq08b.r`, `mfq08c.r`, `mfq08d.r`, and `mfq08e.r` with mean imputation, rounded to the nearest tenth.
Cognition Cognitive Complaint Module ecogself_tot Everyday Self Cognition If more than 15% of the variables `ecogself.mem01`, `ecogself.mem02`, `ecogself.mem03`, `ecogself.mem04`, `ecogself.mem05`, `ecogself.mem06`, `ecogself.mem07`, `ecogself.mem08`, `ecogself.lang01`, `ecogself.lang02`, `ecogself.lang03`, `ecogself.lang04`, `ecogself.lang05`, `ecogself.lang06`, `ecogself.lang07`, `ecogself.lang08`, `ecogself.lang09`, `ecogself.vis01`, `ecogself.vis02`, `ecogself.vis03`, `ecogself.vis04`, `ecogself.vis05`, `ecogself.vis06`, `ecogself.vis07`, `ecogself.plan01`, `ecogself.plan02`, `ecogself.plan03`, `ecogself.plan04`, `ecogself.plan05`, `ecogself.org01`, `ecogself.org02`, `ecogself.org03`, `ecogself.org04`, `ecogself.org05`, `ecogself.org06`, `ecogself.attn01`, `ecogself.attn02`, `ecogself.attn03`, and `ecogself.attn04` are missing, this variable is NA. Otherwise, this variable is the sum of `ecogself.mem01`, `ecogself.mem02`, `ecogself.mem03`, `ecogself.mem04`, `ecogself.mem05`, `ecogself.mem06`, `ecogself.mem07`, `ecogself.mem08`, `ecogself.lang01`, `ecogself.lang02`, `ecogself.lang03`, `ecogself.lang04`, `ecogself.lang05`, `ecogself.lang06`, `ecogself.lang07`, `ecogself.lang08`, `ecogself.lang09`, `ecogself.vis01`, `ecogself.vis02`, `ecogself.vis03`, `ecogself.vis04`, `ecogself.vis05`, `ecogself.vis06`, `ecogself.vis07`, `ecogself.plan01`, `ecogself.plan02`, `ecogself.plan03`, `ecogself.plan04`, `ecogself.plan05`, `ecogself.org01`, `ecogself.org02`, `ecogself.org03`, `ecogself.org04`, `ecogself.org05`, `ecogself.org06`, `ecogself.attn01`, `ecogself.attn02`, `ecogself.attn03`, and `ecogself.attn04` with mean imputation, rounded to the nearest tenth.
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_msdabtriplex_abx42_2014 CSF Abeta42 (MSD Abeta Triplex, 2014) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_msdabtriplex_abx40_2014 CSF Abeta40 (MSD Abeta Triplex, 2014) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_msdabtriplex_abx42_abx40_ratio CSF Abeta42/Abeta40 Ratio (MSD Abeta Triplex, 2014)
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_innotest_ab1_42_2014 CSF Abeta 1-42 (Fujirebio INNOTEST ELISA, 2014) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_innotest_tau_2014 CSF Total tau (Fujirebio INNOTEST ELISA, 2014) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_innotest_ptau_2014 CSF p-tau (Fujirebio INNOTEST ELISA, 2014) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_umandiagnostics_nfl_2016 CSF Neurofilament Light (UmanDiagnostics, 2016) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_elisang36_neurogranin_2016 CSF Neurogranin (ELISA Ng36, 2016) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_rdsystemselisa_ykl40_2016 CSF YKL-40 (R&D System ELISA, 2016) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_fujirebionm4elisa_gap43_2018 CSF GAP-43 (Fujirebio ELISA NM4, 2018) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_beckmancoulter_immage_albumin_2018 CSF Albumin (Beckman Coulter IMMAGE, 2018) g/L
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_beckmancoulter_immage_plasma_albumin_ratio_2018 CSF/Plasma Albumin Ratio (Beckman Coulter IMMAGE, 2018)
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_msdassay_strem2_2018 CSF sTREM2 (MSD Assay, 2018) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_rdsystems_brevican_2019 CSF Brevican (R&D System, 2019) ng/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_rdsystems_timp1_2019 CSF TIMP1 (R&D System, 2019) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_rdsystems_timp2_2019 CSF TIMP2 (R&D System, 2019) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_rdsystems_mmp2_2019 CSF MMP2 (R&D System, 2019) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_mesoscalediscoverymmp3plex_mmp3_2019 CSF MMP3 (Meso Scale Discovery Multiplex Assay, 2019) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_mesoscalediscoverymmp3plex_mmp9_2019 CSF MMP9 (Meso Scale Discovery Multiplex Assay, 2019) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_fujirebio_ab40_2022 CSF Abeta40 (Fujirebio Lumipulse, 2022) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_fujirebio_ab42_2022 CSF Abeta42 (Fujirebio Lumipulse, 2022) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_fujirebio_tau_2022 CSF Total tau (Fujirebio Lumipulse, 2022) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_fujirebio_ptau_2022 CSF p-tau (Fujirebio Lumipulse, 2022) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_rdsystemselisa_ykl40_2022 CSF YKL-40 (R&D System ELISA, 2022) ng/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_mesoscalediscoveryecl_strem2_2022 CSF sTREM2 (Meso Scale Discovery ECL, 2022) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_thermofisherelisa_pdgfrb_2022 CSF PDGFR Beta (Thermo Fisher ELISA, 2022) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_cobas_albumin_2022 CSF Albumin (ROCHE COBAS, 2022) g/L
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_elisa_nfl21nfl223_2022 CSF Neurofilament Light (ELISA NfL21 NfL23, 2022) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_elisang36_neurogranin_2022 CSF Neurogranin (ELISA Ng36, 2022) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_mesoscalediscoveryecl_timp1_2022 CSF TIMP1 (Meso Scale Discovery ECL, 2022) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_mesoscalediscoveryecl_timp2_2022 CSF TIMP2 (Meso Scale Discovery ECL, 2022) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_mesoscalediscoverymmp3plex_mmp2_2022 CSF MMP2 (Meso Scale Discovery Multiplex Assay, 2022) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_mesoscalediscoverymmp3plex_mmp3_2022 CSF MMP3 (Meso Scale Discovery Multiplex Assay, 2022) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_mesoscalediscoverymmp3plex_mmp9_2022 CSF MMP9 (Meso Scale Discovery Multiplex Assay, 2022) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_mesoscalediscovery_flt1_2022 CSF Flt1 (Meso Scale Discovery, 2022) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_raybiotech_elisa_brevican_2022 CSF Brevican (RayBiotech ELISA, 2022) ng/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_upenn_innobiaalzbio3_ab1_42_2015 CSF Abeta 1-42 (INNO-BIA AlzBio3, 2015) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_upenn_innobiaalzbio3_tau_2015 CSF Total tau (INNO-BIA AlzBio3, 2015) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_upenn_innobiaalzbio3_ptau_2015 CSF p-tau (INNO-BIA AlzBio3, 2015) pg/mL
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_upenn_innobiaalzbio3_tau_ab1_42_ratio_2015 CSF Total tau/Abeta 1-42 Ratio (INNO-BIA AlzBio3, 2015)
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_upenn_innobiaalzbio3_ptau_ab1_42_ratio_2015 CSF p-tau/Abeta 1-42 Ratio (INNO-BIA AlzBio3, 2015)
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_lumipulse_snap_2022_factor CSF SNAP (Fujirebio Lumipulse, 2022)
Level Label
1 AB-/tau-
2 AB+/tau-
3 AB-/tau+
4 AB+/tau+
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_lumipulse_ab42_40_2022_ratio_positive_factor CSF Abeta42/Abeta40 Ratio Positive (Fujirebio Lumipulse, 2022)
Level Label
1 No
2 Yes
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_lumipulse_ab42_40_2022_ratio CSF Abeta42/Abeta40 Ratio (Fujirebio Lumipulse, 2022)
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_lumipulse_ptau_2022_positive_factor CSF p-tau Positive (Fujirebio Lumipulse, 2022)
Level Label
1 No
2 Yes
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_lumipulse_tau_2022_positive_factor CSF Total tau Positive (Fujirebio Lumipulse, 2022)
Level Label
1 No
2 Yes
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_lumipulse_ab42_2022_positive_factor CSF Abeta42 Positive (Fujirebio Lumipulse, 2022)
Level Label
1 No
2 Yes
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_innotest_snap_2014_factor CSF SNAP (Fujirebio INNOTEST ELISA, 2014)
Level Label
1 AB-/tau-
2 AB+/tau-
3 AB-/tau+
4 AB+/tau+
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_msdabtriplex_abx42_40_2014_ratio CSF Abeta42/Abeta40 Ratio (Triplex MSD-measurements, 2014)
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_innotest_ptau_2014_positive_factor CSF p-tau Positive (Fujirebio INNOTEST ELISA, 2014)
Level Label
1 No
2 Yes
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_innotest_tau_2014_positive_factor CSF Total tau Positive (Fujirebio INNOTEST ELISA, 2014)
Level Label
1 No
2 Yes
Fluid Biomarkers Cerebrospinal Fluid (CSF) Research Biomarkers csf_innotest_ab1_42_2014_positive_factor CSF Abeta 1-42 Positive (Fujirebio INNOTEST ELISA, 2014)
Level Label
1 No
2 Yes
Fluid Biomarkers Blood-based Research Biomarkers biomarkers_milliplex_leptin_plasma_2015 Plasma Leptin (MILLIPLEX, 2015) pg/mL
Fluid Biomarkers Blood-based Research Biomarkers biomarkers_milliplex_il6_plasma_2015 Plasma IL-6 (MILLIPLEX, 2015) pg/mL
Fluid Biomarkers Blood-based Research Biomarkers biomarkers_milliplex_tnfalpha_plasma_2015 Plasma TNFalpha (MILLIPLEX, 2015) pg/mL
Fluid Biomarkers Blood-based Research Biomarkers biomarkers_milliplex_vegf_plasma_2015 Plasma VEGF (MILLIPLEX, 2015) pg/mL
Fluid Biomarkers Blood-based Research Biomarkers biomarkers_milliplex_vegf_serum_2016 Serum VEGF (MILLIPLEX, 2015) pg/mL
Fluid Biomarkers Blood-based Research Biomarkers biomarkers_simoa_umandiagnostics_nfl_plasma_2018 Plasma Neurofilament Light (UmanDiagnostics Simoa, 2018) pg/mL
Fluid Biomarkers Blood-based Research Biomarkers biomarkers_quanterix_tau_plasma_2018 Plasma Tau (Quanterix, 2018) pg/mL
Fluid Biomarkers Blood-based Research Biomarkers biomarkers_innotest_ab1_42_plasma_2018 Plasma Abeta 1-42 (Fujirebio INNOTEST ELISA, 2018) pg/mL
Fluid Biomarkers Blood-based Research Biomarkers biomarkers_msdabetatriplex_abx40_plasma_2018 Plasma Abeta X-40 (MSD Abeta Triplex, 2018) pg/mL
Fluid Biomarkers Blood-based Research Biomarkers biomarkers_beckmancoulter_immage_albumin_plasma_2019 Plasma Albumin (Beckman Coulter IMMAGE, 2019) g/L
Fluid Biomarkers Blood-based Research Biomarkers biomarkers_quanterixsimoa_ab40_plasma_2022 Plasma Abeta40 (Quanterix Simoa, 2022) pg/mL
Fluid Biomarkers Blood-based Research Biomarkers biomarkers_quanterixsimoa_ab42_plasma_2022 Plasma Abeta42 (Quanterix Simoa, 2022) pg/mL
Fluid Biomarkers Blood-based Research Biomarkers biomarkers_quanterixsimoa_nfl_plasma_2022 Plasma Neurofilament Light (Quanterix Simoa, 2022) pg/mL
Fluid Biomarkers Blood-based Research Biomarkers biomarkers_cobas_albumin_plasma_2022 Plasma Albumin (ROCHE COBAS, 2022) g/L
Fluid Biomarkers Blood-based Research Biomarkers biomarkers_thermofisherelisa_pdgfrb_plasma_2022 Plasma PDGFR Beta (Thermo Fisher ELISA, 2022) pg/mL
Fluid Biomarkers Blood-based Research Biomarkers biomarkers_quanterixsimoa_gfap_plasma_2022 Plasma GFAP (Quanterix Simoa, 2022) pg/mL
Fluid Biomarkers Blood-based Research Biomarkers biomarkers_quanterixsimoa_ptau231_plasma_2022 Plasma p-tau 231 (Quanterix Simoa, 2022) pg/mL
Fluid Biomarkers Blood-based Research Biomarkers biomarkers_mesoscalediscovery_flt1_plasma_2022 Plasma Flt1 (Meso Scale Discovery, 2022) pg/mL
Cardiac Imaging Cardiac Structure and Function -- Echocardiogram echo_hrate Echo - Heart Rate bpm
Cardiac Imaging Cardiac Structure and Function -- Echocardiogram echo_lv_stroke_volume Echo - Stroke Volume mL `3.14159 * ((echo.lvot / 2)^2) * echo.lvot.vti`
Cardiac Imaging Cardiac Structure and Function -- Echocardiogram echo_lvot Echo - LV Outflow Tract cm
Cardiac Imaging Cardiac Structure and Function -- Echocardiogram echo_co_calc Echo - Cardiac Output L/min `3.14159 * ((echo.lvot / 2)^2) * echo.lvot.vti * echo.hrate / 1000`
Cardiac Imaging Cardiac Structure and Function -- Echocardiogram echo_cardiac_index Echo - Cardiac Index m^2 `echo.co.calc / bsa`
Cardiac Imaging Cardiac Structure and Function -- Echocardiogram echo_edv Echo - End Diastolic Volume mL
Cardiac Imaging Cardiac Structure and Function -- Echocardiogram echo_esv Echo - End Systolic Volume mL
Cardiac Imaging Cardiac Structure and Function -- Echocardiogram echo_ef_calc Echo - Left Ventricular Ejection Fraction % `(echo.edv - echo.esv) / echo.edv * 100`
Cardiac Imaging Cardiac Structure and Function -- Echocardiogram echo_lvh_factor Echo - Left Ventricular Hypertrophy Factor. If `sex.factor` or `echo.lvmass.scaled.integer` is missing, this variable is NA. If `sex.factor` is "Female" and `echo.lvmass.scaled.integer <= 95`, this variable is 0 ("No"). If `sex.factor` is "Female" and `echo.lvmass.scaled.integer > 95`, this variable is 1 ("Yes"). If `sex.factor` is "Male" and `echo.lvmass.scaled.integer <= 115`, this variable is 0 ("No"). Otherwise, this variable is 1 ("Yes").
Level Label
1 No
2 Yes
Cardiac Imaging Cardiac Structure and Function -- Echocardiogram echo_lvmass Echo - Left Ventricular Mass g `round(0.8 * 1.04 * ((echo.lvidd + echo.lvpwd + echo.ivsd)^3 - echo.lvidd^3) + 0.6, 2)`
Cardiac Imaging Cardiac Structure and Function -- MRI pwv Pulse Wave Velocity m/s
Cardiac Imaging Cardiac Strain -- MRI qstrain_2ch_myogls Global Longitudinal Strain %
Cardiac Imaging Cardiac Strain -- MRI qstrain_2ch_myogcs Global Circumferential Strain %
Cognition Neuropsychological Assessment np_moca Montreal Cognitive Assessment Test
Cognition Neuropsychological Assessment np_bnt Boston Naming Test (30 Item)
Cognition Neuropsychological Assessment np_anim Animal Naming If any of the the variables `np.anim.q1` to `np.anim.q4` are missing, this variable is NA. Otherwise, this variable is the sum of `np.anim.q1` to `np.anim.q4`.
Cognition Neuropsychological Assessment np_tmta Number Sequencing
Cognition Neuropsychological Assessment np_digsymb Coding
Cognition Neuropsychological Assessment np_executive_composite Executive Function Composite Derived by Dandan Liu in MPlus
Cognition Neuropsychological Assessment np_tower DKEFS Tower Test If all of the variables `np.tower01` to `np.tower10` are missing, this variable is NA. Otherwise, this variable is the sum of `np.tower01` to `np.tower10` excluding any missing values.
Cognition Neuropsychological Assessment np_inhibit Color-Word Inhibition
Cognition Neuropsychological Assessment np_fas FAS, Total
Cognition Neuropsychological Assessment np_tmtb Letter-Number Switching
Cognition Neuropsychological Assessment np_hvot Hooper Visual Organization Test
Cognition Neuropsychological Assessment np_memory_composite Memory Composite Score Derived by Dandan Liu in MPlus
Cognition Neuropsychological Assessment np_biber_t1to5 BFLT Trial 1-5 Learning If any of the the variables `np.biber1` to `np.biber5` are missing, this variable is NA. Otherwise, this variable is the sum of `np.biber1` to `np.biber5`.
Cognition Neuropsychological Assessment np_biber_ld BFLT Long Delayed Free Recall
Cognition Neuropsychological Assessment np_biber_discrim BFLT Recognition, Total
Cognition Neuropsychological Assessment np_cvlt1to5 CVLT-II Trial 1-5 Learning
Cognition Neuropsychological Assessment np_cvlt_ldfr CVLT-II Long Delayed Free Recall
Cognition Neuropsychological Assessment np_cvltrecog_discrim CVLT-II Recognition
Brain Imaging Brain MRI: White Matter Hyperintensities (FLAIR) wml_volume White Matter Lesion Volume cm^3
Brain Imaging Brain MRI: White Matter Hyperintensities (FLAIR) wml_volume_left_hemisphere White Matter Lesion Volume Left Hemisphere Volume cm^3
Brain Imaging Brain MRI: White Matter Hyperintensities (FLAIR) wml_volume_right_hemisphere White Matter Lesion Volume Right Hemisphere Volume cm^3
Brain Imaging Brain MRI: White Matter Hyperintensities (FLAIR) wml_volume_left_frontal_lobe White Matter Lesion Volume Left Frontal Lobe Volume cm^3
Brain Imaging Brain MRI: White Matter Hyperintensities (FLAIR) wml_volume_right_frontal_lobe White Matter Lesion Volume Right Frontal Lobe Volume cm^3
Brain Imaging Brain MRI: White Matter Hyperintensities (FLAIR) wml_volume_left_temporal_lobe White Matter Lesion Volume Left Temporal Lobe Volume cm^3
Brain Imaging Brain MRI: White Matter Hyperintensities (FLAIR) wml_volume_right_temporal_lobe White Matter Lesion Volume Right Temporal Lobe Volume cm^3
Brain Imaging Brain MRI: White Matter Hyperintensities (FLAIR) wml_volume_left_parietal_lobe White Matter Lesion Volume Left Parital Lobe Volume cm^3
Brain Imaging Brain MRI: White Matter Hyperintensities (FLAIR) wml_volume_right_parietal_lobe White Matter Lesion Volume Right Parietal Lobe Volume cm^3
Brain Imaging Brain MRI: White Matter Hyperintensities (FLAIR) wml_volume_left_occipital_lobe White Matter Lesion Volume Left Occipital Lobe Volume cm^3
Brain Imaging Brain MRI: White Matter Hyperintensities (FLAIR) wml_volume_right_occipital_lobe White Matter Lesion Volume Right Occipital Lobe Volume cm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_grey_matter Grey Matter Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_left_hemisphere Grey Matter Volume Left Hemisphere Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_right_hemisphere Grey Matter Volume Right Hemisphere Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_left_frontal_lobe_vol Grey Matter Volume Left Frontal Lobe Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_right_frontal_lobe_vol Grey Matter Volume Right Frontal Lobe Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_left_temporal_lobe_vol Grey Matter Volume Left Temporal Lobe Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_right_temporal_lobe_vol Grey Matter Volume Right Temporal Lobe Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_left_parietal_lobe_vol Grey Matter Volume Left Parietal Lobe Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_right_parietal_lobe_vol Grey Matter Volume Right Parietal Lobe Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_left_occipital_lobe_vol Grey Matter Volume Left Occipital Lobe Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_right_occipital_lobe_vol Grey Matter Volume Right Occipital Lobe Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_lh_hippocampus_vol Grey Matter Volume Left Hippocampus Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_rh_hippocampus_vol Grey Matter Volume Right Hippocampus Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_lh_precuneus_vol Grey Matter Volume Left Precuneus precuneus Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_rh_precuneus_vol Grey Matter Volume Right Precuneus precuneus Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_lh_g_parahippocampal_vol Grey Matter Volume Left PHG Parahippocampal Gyrus Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_rh_g_parahippocampal_vol Grey Matter Volume Right PHG Parahippocampal Gyrus Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_lh_entorhinal_area Grey Matter Volume Left Entorhinal Area Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_rh_entorhinal_area Grey Matter Volume Right Entorhinal Area Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_lh_inf_lat_vent_vol Grey Matter Volume Left Inferior Lateral Ventricle Volume mm^3
Brain Imaging Brain MRI: Grey Matter Volume (T1) ma_rh_inf_lat_vent_vol Grey Matter Volume Right Inferior Lateral Ventricle Volume mm^3
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_fa_middle_occipital_tcatt DTI ROI TBSS FNIRT Fractional Anisotropy Middle Occipital Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_md_middle_occipital_tcatt DTI ROI TBSS FNIRT Mean Diffusivity Middle Occipital Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_rd_middle_occipital_tcatt DTI ROI TBSS FNIRT Radial Diffusivity Middle Occipital Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_ad_middle_occipital_tcatt DTI ROI TBSS FNIRT Axial Diffusivity Middle Occipital Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_fa_middle_frontal_tcatt DTI ROI TBSS FNIRT Fractional Anisotropy Middle Frontal Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_md_middle_frontal_tcatt DTI ROI TBSS FNIRT Mean Diffusivity Middle Frontal Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_rd_middle_frontal_tcatt DTI ROI TBSS FNIRT Radial Diffusivity Middle Frontal Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_ad_middle_frontal_tcatt DTI ROI TBSS FNIRT Axial Diffusivity Middle Frontal Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_fa_superior_parietal_tcatt DTI ROI TBSS FNIRT Fractional Anisotropy Superior Parietal Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_md_superior_parietal_tcatt DTI ROI TBSS FNIRT Mean Diffusivity Superior Parietal Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_rd_superior_parietal_tcatt DTI ROI TBSS FNIRT Radial Diffusivity Superior Parietal Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_ad_superior_parietal_tcatt DTI ROI TBSS FNIRT Axial Diffusivity Superior Parietal Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_fa_middle_temporal_tcatt DTI ROI TBSS FNIRT Fractional Anisotropy Middle Temporal Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_md_middle_temporal_tcatt DTI ROI TBSS FNIRT Mean Diffusivity Middle Temporal Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_rd_middle_temporal_tcatt DTI ROI TBSS FNIRT Radial Diffusivity Middle Temporal Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_ad_middle_temporal_tcatt DTI ROI TBSS FNIRT Axial Diffusivity Middle Temporal Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_fa_cingulum DTI ROI TBSS FNIRT Fractional Anisotropy Cingulum 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_md_cingulum DTI ROI TBSS FNIRT Mean Diffusivity Cingulum 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_rd_cingulum DTI ROI TBSS FNIRT Radial Diffusivity Cingulum 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_ad_cingulum DTI ROI TBSS FNIRT Axial Diffusivity Cingulum 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_fa_uf DTI ROI TBSS FNIRT Fractional Anisotropy Uncinate Fasiculus 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_md_uf DTI ROI TBSS FNIRT Mean Diffusivity Uncinate Fasiculus 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_rd_uf DTI ROI TBSS FNIRT Radial Diffusivity Uncinate Fasiculus 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_ad_uf DTI ROI TBSS FNIRT Axial Diffusivity Uncinate Fasiculus 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_fa_slf DTI ROI TBSS FNIRT Fractional Anisotropy Superior Longitudinal Fasiculus 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_md_slf DTI ROI TBSS FNIRT Mean Diffusivity Superior Longitudinal Fasiculus 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_rd_slf DTI ROI TBSS FNIRT Radial Diffusivity Superior Longitudinal Fasiculus 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_ad_slf DTI ROI TBSS FNIRT Axial Diffusivity Superior Longitudinal Fasiculus 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_fa_ilf DTI ROI TBSS FNIRT Fractional Anisotropy Inferior Longitudinal Fasiculus 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_md_ilf DTI ROI TBSS FNIRT Mean Diffusivity Inferior Longitudinal Fasiculus 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_rd_ilf DTI ROI TBSS FNIRT Radial Diffusivity Inferior Longitudinal Fasiculus 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_tbss_fnirt_ad_ilf DTI ROI TBSS FNIRT Axial Diffusivity Inferior Longitudinal Fasiculus 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_superior_parietal_tcatt DTI ROI Freewater ANTS Superior Parietal Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_fa_superior_parietal_tcatt_corrected DTI ROI Freewater ANTS Fractional Anisotropy Superior Parietal Gyrus Transcallosal Tract Template Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_md_superior_parietal_tcatt_corrected DTI ROI Freewater ANTS Mean Diffusivity Superior Parietal Gyrus Transcallosal Tract Template Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_rd_superior_parietal_tcatt_corrected DTI ROI Freewater ANTS Radial Diffusivity Superior Parietal Gyrus Transcallosal Tract Template Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_ad_superior_parietal_tcatt_corrected DTI ROI Freewater ANTS Axial Diffusivity Superior Parietal Gyrus Transcallosal Tract Template Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_middle_occipital_tcatt DTI ROI Freewater ANTS Middle Occipital Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_fa_middle_occipital_tcatt_corrected DTI ROI Freewater ANTS Fractional Anisotropy Middle Occipital Gyrus Transcallosal Tract Template Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_md_middle_occipital_tcatt_corrected DTI ROI Freewater ANTS Mean Diffusivity Middle Occipital Gyrus Transcallosal Tract Template Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_rd_middle_occipital_tcatt_corrected DTI ROI Freewater ANTS Radial Diffusivity Middle Occipital Gyrus Transcallosal Tract Template Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_ad_middle_occipital_tcatt_corrected DTI ROI Freewater ANTS Axial Diffusivity Middle Occipital Gyrus Transcallosal Tract Template Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_middle_frontal_tcatt DTI ROI Freewater ANTS Middle Frontal Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_fa_middle_frontal_tcatt_corrected DTI ROI Freewater ANTS Fractional Anisotropy Middle Frontal Gyrus Transcallosal Tract Template Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_md_middle_frontal_tcatt_corrected DTI ROI Freewater ANTS Mean Diffusivity Middle Frontal Gyrus Transcallosal Tract Template Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_rd_middle_frontal_tcatt_corrected DTI ROI Freewater ANTS Radial Diffusivity Middle Frontal Gyrus Transcallosal Tract Template Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_ad_middle_frontal_tcatt_corrected DTI ROI Freewater ANTS Axial Diffusivity Middle Frontal Gyrus Transcallosal Tract Template Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_middle_temporal_tcatt DTI ROI Freewater ANTS Middle Temporal Gyrus Transcallosal Tract Template 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_fa_middle_temporal_tcatt_corrected DTI ROI Freewater ANTS Fractional Anisotropy Middle Temporal Gyrus Transcallosal Tract Template Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_md_middle_temporal_tcatt_corrected DTI ROI Freewater ANTS Mean Diffusivity Middle Temporal Gyrus Transcallosal Tract Template Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_rd_middle_temporal_tcatt_corrected DTI ROI Freewater ANTS Radial Diffusivity Middle Temporal Gyrus Transcallosal Tract Template Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_ad_middle_temporal_tcatt_corrected DTI ROI Freewater ANTS Axial Diffusivity Middle Temporal Gyrus Transcallosal Tract Template Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_cingulum DTI ROI Freewater ANTS Cingulum 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_fa_cingulum_corrected DTI ROI Freewater ANTS Fractional Anisotropy Cingulum Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_md_cingulum_corrected DTI ROI Freewater ANTS Mean Diffusivity Cingulum Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_rd_cingulum_corrected DTI ROI Freewater ANTS Radial Diffusivity Cingulum Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_ad_cingulum_corrected DTI ROI Freewater ANTS Axial Diffusivity Cingulum Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_uf DTI ROI Freewater ANTS Uncinate Fasiculus 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_fa_uf_corrected DTI ROI Freewater ANTS Fractional Anisotropy Uncinate Fasiculus Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_md_uf_corrected DTI ROI Freewater ANTS Mean Diffusivity Uncinate Fasiculus Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_rd_uf_corrected DTI ROI Freewater ANTS Radial Diffusivity Uncinate Fasiculus Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_ad_uf_corrected DTI ROI Freewater ANTS Axial Diffusivity Uncinate Fasiculus Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_slf DTI ROI Freewater ANTS Superior Longitudinal Fasiculus 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_fa_slf_corrected DTI ROI Freewater ANTS Fractional Anisotropy Superior Longitudinal Fasiculus Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_md_slf_corrected DTI ROI Freewater ANTS Mean Diffusivity Superior Longitudinal Fasiculus Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_rd_slf_corrected DTI ROI Freewater ANTS Radial Diffusivity Superior Longitudinal Fasiculus Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_ad_slf_corrected DTI ROI Freewater ANTS Axial Diffusivity Superior Longitudinal Fasiculus Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_ilf DTI ROI Freewater ANTS Inferior Longitudinal Fasiculus 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_fa_ilf_corrected DTI ROI Freewater ANTS Fractional Anisotropy Inferior Longitudinal Fasiculus Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_md_ilf_corrected DTI ROI Freewater ANTS Mean Diffusivity Inferior Longitudinal Fasiculus Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_rd_ilf_corrected DTI ROI Freewater ANTS Radial Diffusivity Inferior Longitudinal Fasiculus Corrected 10^-3 mm^2/s
Brain Imaging Diffusion Tensor Imaging dti_fw_ants_ad_ilf_corrected DTI ROI Freewater ANTS Axial Diffusivity Inferior Longitudinal Fasiculus Corrected 10^-3 mm^2/s
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_rest_grey_matter_hct Resting CBF Total Grey Matter Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_rest_left_hemisphere_hct Resting CBF Left Hemisphere Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_rest_right_hemisphere_hct Resting CBF Right Hemisphere Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_rest_left_frontal_lobe_hct Resting CBF Left Frontal Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_rest_right_frontal_lobe_hct Resting CBF Right Frontal Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_rest_left_temporal_lobe_hct Resting CBF Left Temporal Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_rest_right_temporal_lobe_hct Resting CBF Right Temporal Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_rest_left_parietal_lobe_hct Resting CBF Left Parietal Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_rest_right_parietal_lobe_hct Resting CBF Right Parietal Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_rest_left_occipital_lobe_hct Resting CBF Left Occipital Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_rest_right_occipital_lobe_hct Resting CBF Right Occipital Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_chall_grey_matter_hct Challenge CBF Total Grey Matter Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_chall_left_hemisphere_hct Challenge CBF Left Hemisphere Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_chall_right_hemisphere_hct Challenge CBF Right Hemisphere Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_chall_left_frontal_lobe_hct Challenge CBF Left Frontal Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_chall_right_frontal_lobe_hct Challenge CBF Right Frontal Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_chall_left_temporal_lobe_hct Challenge CBF Left Temporal Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_chall_right_temporal_lobe_hct Challenge CBF Right Temporal Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_chall_left_parietal_lobe_hct Challenge CBF Left Parietal Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_chall_right_parietal_lobe_hct Challenge CBF Right Parietal Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_chall_left_occipital_lobe_hct Challenge CBF Left Occipital Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_chall_right_occipital_lobe_hct Challenge CBF Right Occipital Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_reac_grey_matter_hct Reactivity CBF Total Grey Matter Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_reac_left_hemisphere_hct Reactivity CBF Left Hemisphere Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_reac_right_hemisphere_hct Reactivity CBF Right Hemisphere Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_reac_left_frontal_lobe_hct Reactivity CBF Left Frontal Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_reac_right_frontal_lobe_hct Reactivity CBF Right Frontal Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_reac_left_occipital_lobe_hct Reactivity CBF Left Occipital Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Small Vessel Disease Markers swi_microbleeds_number Total Number of Microbleeds This variable is identical to `swi.microbleeds.number` with any plus (+) sign removed from the values and blank values and values of -9999 set to NA.
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_reac_right_parietal_lobe_hct Reactivity CBF Right Parietal Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_reac_left_parietal_lobe_hct Reactivity CBF Left Parietal Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_reac_left_temporal_lobe_hct Reactivity CBF Left Temporal Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_reac_right_temporal_lobe_hct Reactivity CBF Right Temporal Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL asl_reac_right_occipital_lobe_hct Reactivity CBF Right Occipital Lobe Hematocrit Corrected mL/100 g/min
Brain Imaging Brain MRI: Cerebral Small Vessel Disease Markers lacunar_infarcts_number Number of Lacunar Infarcts
record_info Demographics Medical History
APOE Genotype
Cognitive Complaint Module Neuropsychological Assessment
Cerebrospinal Fluid (CSF) Research Biomarkers Blood-based Research Biomarkers
Cardiac Structure and Function -- Echocardiogram Cardiac Structure and Function -- MRI Cardiac Strain -- MRI
Brain MRI: White Matter Hyperintensities (FLAIR) Brain MRI: Grey Matter Volume (T1) Diffusion Tensor Imaging Brain MRI: Cerebral Blood Flow (CBF) ROI -- PCASL Brain MRI: Cerebral Small Vessel Disease Markers


Variable: dti_fw_ants_fa_middle_occipital_tcatt_corrected

Description: DTI ROI Freewater ANTS Fractional Anisotropy Middle Occipital Gyrus Transcallosal Tract Template Corrected


Unit: 10^-3 mm^2/s


Distribution:

  • Epoch 1 = baseline
  • Epoch 2 = 18-month
  • Epoch 3 = 3 years
  • Epoch 4 = 5 years
  • Epoch 5 = 7 years
  • Epoch 6 = 9 years
Diffusion Tensor Imaging