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Automated Post-Processing QC Metrics

11,811 Shared Subjects

Automated post-processing QC metrics
Neurosignal Recordings
Evaluated Data
03/04/2020
abcd_auto_postqc01
10/27/2020
View Change History
01
Query Element Name Data Type Size Required Description Value Range Notes Aliases
subjectkey GUID Required The NDAR Global Unique Identifier (GUID) for research subject NDAR*
src_subject_id String 20 Required Subject ID how it's defined in lab/project
interview_date Date Required Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY
interview_age Integer Required Age in months at the time of the interview/test/sampling/imaging. 0 :: 1260 Age is rounded to chronological month. If the research participant is 15-days-old at time of interview, the appropriate value would be 0 months. If the participant is 16-days-old, the value would be 1 month.
sex String 20 Required Sex of subject at birth M;F; O; NR M = Male; F = Female; O=Other; NR = Not reported gender
eventname String 60 Required The event name for which the data was collected
Query visit String 60 Recommended Visit name apqc_visitid
apqc_smri_topo_ndefect Integer Recommended Number of topology defects for left and right hemispheres before topology correction 0 :: 10000
apqc_dmri_fov_cutoff_dorsal Float Recommended Maximum dorsal cutoff score in dMRI FM images 0 :: 1000
apqc_dmri_fov_cutoff_ventral Float Recommended Maximum ventral cutoff score in dMRI FM images 0 :: 1000
apqc_dmri_bounwarp_flag Integer Recommended Scans available for dMRI B0 unwarp 0;1 0 = missing scans required for B0 unwarp; 1 = scans available for B0 unwarp
apqc_dmri_pepolar_diff Float Recommended Phase-encode polarity difference score for dMRI fieldmap -100 :: 100 Negative score indicates fieldmaps with reversed phase-encode polarity; Near-zero scores indicate fieldmaps with same phase-encode polarity
apqc_dmri_b0dx_rms Float Recommended Root mean square of estimated B0 displacements in phase-encode direction for dMRI fieldmap 0 :: 1000
apqc_fmri_fov_cutoff_dorsal Float Recommended Maximum dorsal cutoff score in fMRI FM images 0 :: 1000
apqc_fmri_fov_cutoff_ventral Float Recommended Maximum ventral cutoff score in fMRI FM images 0 :: 1000
apqc_fmri_bounwarp_flag Integer Recommended Scans available for fMRI B0 unwarp 0;1 0 = missing scans required for B0 unwarp; 1 = scans available for B0 unwarp
apqc_fmri_pepolar_diff Float Recommended Phase-encode polarity difference score for fMRI fieldmap -100 :: 100 Negative score indicates fieldmaps with reversed phase-encode polarity; Near-zero scores indicate fieldmaps with same phase-encode polarity
apqc_fmri_b0dx_rms Float Recommended Root mean square of estimated B0 displacements in phase-encode direction for fMRI fieldmap 0 :: 1000
apqc_fmri_intra_tsnr Float Recommended Intrascan temporal signal to noise ratio averaged across runs and averaged within brain mask
apqc_fmri_inter_tsnr Float Recommended Interrscan temporal signal to noise ratio averaged within brain mask 0 :: 100000
apqc_smri_t2w_regt1_rigid Float Recommended Normalized score indicating displacement and rotation of T2w volume relative to T1w volume 0 :: 100
apqc_smri_t2w_regt1_warp Float Recommended Normalized score indicating stretching of T2w volume relative to T1w volume 0 :: 100
apqc_dmri_regt1_rigid Float Recommended Normalized score indicating displacement and rotation of dMRI fieldmap relative to T1w volume 0 :: 100
apqc_dmri_regt1_warp Float Recommended Normalized score indicating stretching of dMRI fieldmap relative to T1w volume 0 :: 100
apqc_fmri_regt1_rigid Float Recommended Normalized score indicating displacement and rotation of fMRI fieldmap relative to T1w volume 0 :: 100
apqc_fmri_regt1_warp Float Recommended Normalized score indicating stretching of fMRI fieldmap relative to T1w volume 0 :: 100
Data Structure

This page displays the data structure defined for the measure identified in the title and structure short name. The table below displays a list of data elements in this structure (also called variables) and the following information:

  • Element Name: This is the standard element name
  • Data Type: Which type of data this element is, e.g. String, Float, File location.
  • Size: If applicable, the character limit of this element
  • Required: This column displays whether the element is Required for valid submissions, Recommended for valid submissions, Conditional on other elements, or Optional
  • Description: A basic description
  • Value Range: Which values can appear validly in this element (case sensitive for strings)
  • Notes: Expanded description or notes on coding of values
  • Aliases: A list of currently supported Aliases (alternate element names)
  • For valid elements with shared data, on the far left is a Filter button you can use to view a summary of shared data for that element and apply a query filter to your Cart based on selected value ranges

At the top of this page you can also:

  • Use the search bar to filter the elements displayed. This will not filter on the Size of Required columns
  • Download a copy of this definition in CSV format
  • Download a blank CSV submission template prepopulated with the correct structure header rows ready to fill with subject records and upload

Please email the The NDA Help Desk with any questions.