Paul Thompson's Lab, Imaging Genetics Center (IGC), University of Southern California - Cross-sectional and longitudinal tensor-based morphometry Versions 2.0 and 2.1

data(tbm)

Format

A data frame with 9354 rows and 18 variables

A dataset with variables as follows:

COLPROT -4 -4 Study protocol of data collection
RID -4 -4 Participant roster ID
VISCODE -4 -4 Visit code
EXAMDATE -4 -4 Examination Date
VERSION -4 -4 -4
IMAGEUID_1 -4 -4 IMAGE ID of the screening scan
IMAGEUID_2 -4 -4 IMAGE ID of the follow-up scan; see VISCODE
RUNDATE -4 -4 -4
STATUS -4 -4 -4
MEASURE_1 -4 -4 Numerical summary of cumulative temporal lobe atrophy average within a statistically defined region-of-interest (p<0.00001) inside the temporal lobes; see VISCODE; summaries are scaled by 1000 (e.g. 1000: no change, 1200: 20
MEASURE_2 -4 -4 Numerical summary of cumulative temporal lobe atrophy average within an anatomically defined region-of-interest including bilateral temporal lobes; see VISCODE; summaries are scaled by 1000 (e.g. 1000: no change, 1200: 20
SEQUENCE -4 -4 -4
ACCEL_NONACCEL -4 -4 -4
DESCRIPTION -4 -4 -4
FIELD_STRENGTH -4 -4 -4
EXTRA_NOTES_ON_PROCESSED_IMAGES -4 -4 -4
update_stamp -4 -4 -4
FIELD.STRENGTH -4 -4 -4
ACCEL.NONACCEL -4 -4 -4
ACQUISITION -4 -4 -4

if (FALSE) {
describe(tbm)
}