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PET QC Tracking

Source: R/data.R
PETQC.Rd

PET QC Tracking data. More information is available at https://adni.loni.usc.edu/data-samples/adni-data/

Usage

data(PETQC)

Format

A data frame with 3951 observations and 39 variables.

Source

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

Details

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

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

  • ID numeric Range value: 2, ..., 3990

  • RID numeric Range value: 2, ..., 5296

  • PTID character Participant ID

  • SITEID numeric Range value: 1, ..., 127

  • VISCODE character

  • VISCODE2 character Translated visit code

  • USERDATE Date: YYY-MM-DD

  • USERDATE2 Date: YYY-MM-DD

  • RECNO numeric Range value: 1, ..., 4

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

  • EXAMDATE Examination Date Date: YYY-MM-DD

  • PQFILENO numeric Upload Number 1..25

  • PQDATTRA character Date images uploaded to LONI

  • LONIUID character LONI Unique Series ID

  • PQDATE character Date reviewed

  • PQACQFR character Acquisition

    • ADNI1: 1=6 frames, 5 min/frame (qualitative) ; 2=1 frame, 30 min (qualitative) ; 3=Quantitative

    • ADNIGO: 1=6 frames, 5 min/frame ; 2=2 scans, 15 min each

    • ADNI2: 1=6 frames, 5 min/frame ; 2=2 scans, 15 min each ; 3=1 scan, 30min

    Decoded Value: Yes

  • PQCORALG character Correct Reconstruction Algorithm? 1=Yes ; 0=No Decoded Value: Yes

  • PQRECON character Check which of the following reconstruction algorithms was used

    • ADNI1: 2=FORE/2D-OSEM ; 4=OSEM3D-OP ; 1=3D-Ramla ; 3=3D Back-projection

    • ADNIGO: 2=FORE/2D-OSEM (Siemens) ; 4=OSEM3D (Siemens) ; 5=3D Iterative (GE) ; 1=3D-Ramla (Philips) ; 3=3D Back-projection (GE)

    • ADNI2: 2=FORE/2D-OSEM (Siemens) ; 4=OSEM3D (Siemens) ; 5=3D Iterative (GE) ; 6=FORE Iterative (GE) ; 1=3D or LOR Ramla (Philips) ; 3=3D Back-projection (GE)

    Decoded Value: Yes

  • PQCORNUM character If FORE/2D-OSEM or OSEM3D or 3D Iterative or FORE Iterative, correct # subsets and iterations? 1=Yes ; 0=No Decoded Value: Yes

  • PQCORFIL character Correct Filters/TRIM? 1=Yes ; 0=No Decoded Value: Yes

  • PQCORTHI character Correct Slice Thickness (PET/CT systems)? 1=Yes ; 0=No ; 2=N/A (PET only system) Decoded Value: Yes

  • PQVOXEL character Acceptable Voxel Size? 1=Yes ; 0=No Decoded Value: Yes

  • PQALLFRAME character Were all frames acceptable? 1=Yes ; 0=No Decoded Value: Yes

  • PQUNUSABLE character Indicate which frames were unacceptable:

  • PQREASON character Indicate why frames were unacceptable: 1=Subject motion ; 2=Other (Please Specify) Decoded Value: Yes

  • PQREASSP character If Other, Specify:

  • PASS character Pass QC? 1=Yes ; 0=No Decoded Value: Yes

  • PQPROERR character A. Processing Error(s) 1=Incorrect reconstruction algorithm ; 2=Incorrect filtering ; 3=Incorrect slice thickness ; 4=Incorrect voxel size ; 5=Attenuation Error ; 6=Normalization Error ; 7=Inadequate counts ; 8=Inadequate field of view ; 9=Incorrect acquisition protocol ; 10=Unfixable image artifact (e.g. attenuation, normalization, etc.) ; 99=Other (specify)

  • PQERRSP character Specify

  • PQACTION character B. QC outcome

    • ADNI1: 1=Request Reprocessing ; 2=Request Rescan ; 3=Unuseable - Don't request rescan (provide details) ; 4=Allow Rescan (rescan not requested)

    • ADNIGO, ADNI2: 1=Request Reprocessing ; 2=Request Rescan ; 3=Unusable - Don't request rescan (provide details) ; 4=Allow Rescan (rescan not requested)

    Decoded Value: Yes

  • PQNONESP character If unusable, reason for not rescanning

  • PQISSUES character Imaging issues

    • ADNI1: 1=Motion - none ; 2=Motion - mild ; 3=Motion - mild-to-moderate ; 4=Motion - moderate ; 5=Motion - moderate-to-severe ; 6=Top Cutoff - none ; 7=Top Cutoff - 0-3mm ; 8=Top Cutoff - 3-6mm ; 9=Top Cutoff - 6-9mm ; 10=Top Cutoff - >9mm ; 11=Bottom Cutoff - none ; 12=Bottom Cutoff - 0-3mm ; 13=Bottom Cutoff - 3-6mm ; 14=Bottom Cutoff - 6-9mm ; 15=Bottom Cutoff - >9mm ; 99=Other (specify)

    • ADNIGO, ADNI2: 1=Motion - minimal ; 2=Motion - mild ; 3=Motion - mild-to-moderate ; 4=Motion - moderate ; 5=Motion - moderate-to-severe ; 6=Top Cutoff - none ; 7=Top Cutoff - 0-3mm ; 8=Top Cutoff - 3-6mm ; 9=Top Cutoff - 6-9mm ; 10=Top Cutoff - >9mm ; 11=Bottom Cutoff - none ; 12=Bottom Cutoff - 0-3mm ; 13=Bottom Cutoff - 3-6mm ; 14=Bottom Cutoff - 6-9mm ; 15=Bottom Cutoff - >9mm ; 99=Other (specify)

  • PQISSOTH character Other, specify , with options: Single frame - motion N/A, ., front of head cut off, high in FOV

  • COMMENTS character Additional QC Comments

  • QUARANTINE character Release from quarantine? 1=Yes ; 0=No Decoded Value: Yes

  • PAYSITE character Pay Site? 1=Yes ; 0=No Decoded Value: Yes

  • update_stamp POSIXct: YYY-MM-DD

Author

adni-data@googlegroups.com