FDG PET Scan Information data. More information is available at https://adni.loni.usc.edu/data-samples/adni-data/
Usage
data(PETMETA_ADNIGO2)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: 4, ..., 6250
RID numeric Participant roster ID Range value: 2, ..., 5296
PTID character Participant ID
SITEID numeric Site ID Range value: 1, ..., 61
VISCODE character Visit code
VISCODE2 character Translated visit code
USERDATE Date record created Date: YYY-MM-DD
USERDATE2 Date record last updated Date: YYY-MM-DD
RECNO numeric Range value: 1, ..., 2
PMCONDCT character Was the scan conducted? 1=Yes ; 0=No Decoded Value: Yes
PMREASON character Reason why the scan was not conducted:
ADNIGO: 1=Illness ; 2=Participant unavailable ; 3=Participant unwilling ; 4=Administrative problems ; 5=Withdrawn consent ; 6=Other (specify)
ADNI2: 1=Illness ; 2=Participant unavailable ; 3=Participant unwilling ; 8=Software/scanner error ; 4=Administrative problems ; 5=Withdrawn consent ; 7=Not called for by protocol ; 6=Other (specify)
Decoded Value: Yes
RADTRACER character If no, was radiotracer administered? 1=Yes ; 0=No Decoded Value: Yes
EXAMDATE Examination Date Date: YYY-MM-DD
PMSCANNER character GE 1=check here Decoded Value: Yes
PMGEMODEL character If GE, Scanner Model:
ADNIGO: 1=Advance ; 2=Discovery LS ; 3=Discovery ST ; 4=Discovery RX ; 5=Discovery STE/VCT
ADNI2: 1=Advance ; 2=Discovery LS ; 3=Discovery ST ; 4=Discovery RX ; 5=Discovery STE/VCT ; 6=Discovery 600 ; 7=Discovery 690
Decoded Value: Yes
PMSIEMENS character Siemens/CTI 1=check here Decoded Value: Yes
PMSIEMODEL character If Siemens/CTI, Scanner Model: 1=ACCEL/EXACT ; 2=Biograph (Model 1023/1024) ; 8=Biograph HiRes (Model 1080) ; 3=BioGraph TruePoint (Model 1093/1094) ; 4=BioGraph mCT ; 6=HR+ ; 7=HRRT Decoded Value: Yes
PMPHILLIPS character Phillips 1=check here Decoded Value: Yes
PMPHMODEL character If Phillips, Scanner Model: 1=Allegro ; 3=Gemini ; 4=Gemini-GXL ; 5=Gemini-TF Decoded Value: Yes
PMQCTIME character Time of today's Scanner QC
PMBLTIME character Time of blood glucose measurement
PMBLGLUC numeric Blood Glucose (pre-FDG) Range value: 5, ..., 281
PMFDGTIME character Time of FDG dose assay
PMFDGDOS numeric FDG dose assay Range value: 0.5, ..., 54
PMFDGVOL numeric FDG Volume Range value: 0.1, ..., 75
PMINJTIME character Time of FDG injection
PMGLUCOM character Provide an explanation if blood glucose was measured after the FDG injection: , with options: n/a, no explaination provided, Tech forgot to measure blood glucose before injection., N/A
PMSCTIME character Emission Scan Start Time:
PMVARIAT character Any variations from protocol during FDG uptake? 1=Yes ; 0=No Decoded Value: Yes
PMFRAME character Which framing rate was used?
ADNIGO: 1=6 frames, 5 min/frame (6x300s) ; 3=2 scans, 15 min each (2x900s) (only for BioGraph scanners without list-mode)
ADNI2: 1=6 frames, 5 min/frame (6x300s) ; 3=2 scans, 15 min each (2x900s) (only for BioGraph scanners without list-mode) ; 4=1 frame, 30 min (1x1800s) (only for the oldest BioGraph scanners: Models 1023 or 1024)
Decoded Value: Yes
PMMOTION character Subject motion problems: 1=Yes ; 0=No Decoded Value: Yes
PMMALFUN character Scanner malfunction 1=Yes ; 0=No Decoded Value: Yes
PMOTHER character Other protocol variations: 1=Yes ; 0=No Decoded Value: Yes
PMRECON character Check which of the following reconstructions was used:
ADNIGO: 2=FORE/2D-OSEM (Siemens) ; 4=OSEM3D (Siemens) (If HRRT scanners using OP, please select OSEM3D) ; 5=3D Iterative (GE) ; 1=3D-Ramla (Philips) ; 3=3D Back-projection (GE)
ADNI2: 2=FORE/2D-OSEM (Siemens) ; 4=OSEM3D (Siemens) (If HRRT scanners using OP, please select OSEM3D) ; 5=3D Iterative (GE) ; 6=FORE Iterative (GE) ; 1=3D or LOR Ramla (Philips) ; 3=3D Back-projection (GE)
Decoded Value: Yes
PMSUBSET character # subsets:
ADNIGO: 14=14 ; 16=16 ; 20=20 ; 99=Other
ADNI2: 12=12 ; 14=14 ; 16=16 ; 20=20 ; 21=21 ; 24=24 ; 32=32 ; 99=Other
Decoded Value: Yes
PMSUBSPE numeric If Other, specify Range value: 12, ..., 32
PMITERAT character # iterations: 4=4 ; 6=6 ; 99=Other Decoded Value: Yes
PMITERSPE logical If Other, specify: A Boolean value: TRUE/ FALSE
PMRAMLA numeric Lambda= Range value: 0, ..., 1
PMSHARP character Was 'Smooth' parameter set to 'Sharp'? 1=Check here to confirm Decoded Value: Yes
PMFILTER character If 3D Back-Projection, Ramp filter? 1=Check here to confirm Decoded Value: Yes
PMMODEON character If FORE/2D-OSEM select one of the following:
ADNIGO: 1=Brain Mode "ON" for PET-only Siemens scanners ; 2=TRIM "ON" for PET/CT Siemens scanners (older software version) ; 3=TRIM not available for PET/CT scanners (new software versions)
ADNI2: 1=Brain Mode 'ON' for PET-only Siemens scanners ; 2=TRIM 'ON' for PET/CT Siemens scanners (older software version) ; 3=TRIM not available for PET/CT scanners (new software versions)
Decoded Value: Yes
PMSMOOTH character No post-process smoothing: 1=Check here to confirm Decoded Value: Yes
PMATTEN character Attenuation Correction: 1=CT ; 2=Ge-68+Segmentation ; 3=Cs-137+Segmentation Decoded Value: Yes
PMTRNSFR character Was data transferred to LONI within 24 hours of scan? 1=Yes ; 0=No Decoded Value: Yes
PMTRNDATE character Transfer Date
PMARCHIVE character Was all raw PET data archived locally to be able to do complete reconstruction of PET Scan if needed? 1=Yes ; 0=No Decoded Value: Yes
PMLPDONE character Was a Lumbar Puncture completed prior to the PET scan? 1=Yes ; 0=No Decoded Value: Yes
PMLPINTER character If Yes, What was the interval between LP and PET? 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
update_stamp POSIXct: YYY-MM-DD