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3T MRI Scan Information

Source: R/data.R
MRI3META.Rd

3T MRI Scan Information data. More information is available at https://adni.loni.usc.edu/data-samples/adni-data/

Usage

data(MRI3META)

Format

A data frame with 9074 observations and 43 variables.

Source

https://adni.loni.usc.edu/data-samples/adni-data/

Details

  • ORIGPROT character Original study protocol , with options: ADNI1, ADNIGO, ADNI2, ADNI3, ADNI4

  • COLPROT factor Study protocol of data collection , with levels: ADNI1, ADNIGO, ADNI2, ADNI3, ADNI4

  • PTID character Participant ID

  • RID numeric Participant roster ID Range value: 15, ..., 10893

  • VISCODE character Visit code

  • VISCODE2 character

  • FIELD_STRENGTH character Field Strength 3T=3 Tesla Decoded Value: Yes

  • RECNO character 1=Original Scan ; 2=Rescan Decoded Value: Yes

  • MMCONDCT character Was the scan conducted? 1=Yes ; 0=No Decoded Value: Yes

  • MMREASON character Reason why the scan was not conducted: 1=Illness ; 2=Participant unavailable ; 3=Participant unwilling ; 4=Administrative problems ; 5=Withdrawn consent ; 6=Other (specify) Decoded Value: Yes

  • EXAMDATE Scan Date Date: YYY-MM-DD

  • MMSCOUT character 1. Tri-Planar Scout (if available, otherwise use an axial scout) 1=Yes ; 0=No Decoded Value: Yes

  • MMSMPRAGE character 2. Straight Sagittal MPRAGE Sequence 1=Yes ; 0=No Decoded Value: Yes

  • MMRMPRAGE character 3. Repeat Straight Sagittal MPRAGE Sequence 1=Yes ; 0=No Decoded Value: Yes

  • MMB1HEAD character 4. B1 Calibration Head Coil Scan (Only applicable for phased array head coil on GE and Siemens systems) 1=Yes ; 0=No Decoded Value: Yes

  • MMB1BODY character 5. B1 Calibration Body Coil Scan (Only applicable for phased array head coil on GE and Siemens systems) 1=Yes ; 0=No Decoded Value: Yes

  • MMECHO character 6. Straight Axial Fast or Turbo Spin Echo 1=Yes ; 0=No Decoded Value: Yes

  • MMPHAN character 7. In new exam; Perform ADNI QC Scan. Localizer and Straight Sagittal MPRAGE (with increased slice thickness to ensure phantom coverage) 1=Yes ; 0=No Decoded Value: Yes

  • MMTRNSFR character Was data transferred to LONI within 24 hours of scan? 1=Yes ; 0=No Decoded Value: Yes

  • MMTRNDATE character Transfer Date

  • MMTRNDATEYR_DRVD numeric Transfer Year (Derived from MMTRNDATE) Range value: 2005, ..., 2025

  • MMARCHIVE character Data Archived Locally 1=Yes ; 0=No Decoded Value: Yes

  • MMLPDONE character 9. Was a Lumbar Puncture completed prior to the MRI scan? 1=Yes ; 0=No Decoded Value: Yes

  • MMLPINTER character If Yes, What was the interval between LP and MRI? 1=less than 6 hours ; 2=6-12 hours ; 3=13-24 hours ; 4=25-48 hours ; 5=49-72 hours ; 6=more than 72 hours Decoded Value: Yes

  • SEDATIVE numeric Range value: 0, ..., 1

  • OTRDEV numeric Range value: 0, ..., 1

  • MOTION numeric Range value: 0, ..., 1

  • EYEKEEP numeric Range value: 0, ..., 2

  • EYEASK numeric Range value: 0, ..., 2

  • EYEKEEP4 numeric Range value: 0, ..., 2

  • EYEASK4 numeric Range value: 0, ..., 2

  • EYEKEEP6 numeric Range value: 0, ..., 2

  • EYEASK6 numeric Range value: 0, ..., 2

  • MALFUNC numeric Range value: 0, ..., 1

  • FLDSTRNGTH numeric Range value: 2, ..., 2

  • ID numeric Range value: 2, ..., 187111

  • SITEID numeric Site ID Range value: 1, ..., 941

  • USERDATE Date record created Date: YYY-MM-DD

  • USERDATE2 Date record last updated Date: YYY-MM-DD

  • DD_CRF_VERSION_LABEL character , with options: v1

  • LANGUAGE_CODE character , with options: e

  • HAS_QC_ERROR numeric Range value: 0, ..., 0

  • update_stamp POSIXct: YYY-MM-DD

Author

adni-data@googlegroups.com