Administrative Imaging Tables

Published

January 15, 2025

List of Instruments

Name of Instrument	Table Name
MRI Info	`mri_y_adm_info`
Scanning Checklist and Notes	`mri_y_adm_nts`
Pre/Post-Scan Questionnaires	`mri_y_adm_qtn`

General Information

An overview of the ABCD Study® can be found at abcdstudy.org and detailed descriptions of the assessment protocols are available at ABCD Protocols. This page describes the contents of various instruments available for download. To understand the context of this information, refer to the release notes Start Page and Imaging Overview.

MRI Info

The MRI Info instrument provides information on the MRI scanner used at each visit such as scanner manufacturer, model, magnetic field strength, device software version and date of acquisition. It also provides the visit ID for a given participant/event.

Note:

See https://abcdstudy.org/images/Protocol_Imaging_Sequences.pdf for more information about ABCD MRI protocols.

Scanning Checklist and Notes

The Scanning Checklist and Notes instrument is used by research assistants during the MRI session to record relevant information about the session. For example, it records the original randomized order of fMRI tasks and if there were deviations from that order. It also records whether task fMRI paradigms were completed in or outside of the scanner.

Pre/Post Scan Questionnaires

Participants are asked to fill in a pre-scan questionnaire immediately prior to scanning. The questionnaire asks about their current state of arousal (sleepy, happy, scared, awake, upset, angry, excited, tired, sleepy and sad) using a five-point Likert scale: Very slightly or not at all=1; A little=2; Moderately=3; Quite a bit=4; and Extremely=5. This questionnaire is administered again at the end of the scan.

If the scan protocol is administered over 2 days/sessions then the participant is administered the questionnaire again before and after the scan. Please check the Scanning Checklist and Notes to see if a re-scan was performed.