SPECT QC - answer Energy Peak 2.uniformity Resolution Linearity Center of Rotation
COR high - count extrinsic flood field uniformity correction Jaszczak
Center of Rotation COR - - answerNTRADY12 COR reduces spatial resolution &
blurring Image contrast a measure Performed to ensure center field of view of camera
detect or matches computer software
High count extrensic flood - field uniformity correction - answer Performed directly by
manufacturer used to ensure efficiency photon defection is constant across an surface
of collimated detector . -30-100 mil . counts deficiency causes ring artifact in SPECT
Imaging
Jaszczak SPECT Phantom test - - answer Jaszczak determines 3D contrast , resolut
von , & uniformity of SPECT camera . - 30mil.counts
Combined SPECT CT QC - answer Includes all QC + Registration attenuation
correction accuracy or mis registration consequences
Energy Peak - answerconfirm the camera is counting Photon in the Proper energy
Windows .
-Transmission source mechanics - answerconfirm operation of the source Shutter &
translating mechanics , & reference blank transmission Scan should be acquired .
Weekly ( preferably daily)
SPECT / CT X - ray based NMTCB QC - answer- all spect / CT QC including CT QC
1.Calibration 2.field uniformity Calibration CT number inserted Phantom L considerd not
calibrated if error is greater than 5 Hounsfield units Field uniformity ensures uniform
response throughout FOV -
FDG-F18 pt questions - answerPt History , surgenes , chemo radiation therapy ,
previous Imaging results , Pt . cooperation lying still for hrs & arms up . Laxative may
given night before to prevent bowel inter ferring Blood Glucose Less than 200mcg
Bone pain associated w / metastatic bone disease raphas - answerSr 89 Sm 153 P32
ST89 Chloride half life - answer50.5day
ST89 Chloride analog - answer-calcium analog cleared from blood stream & localizes in
bont
SR89 Chloride localization - answer-localizes in areas of active osteogenesis in
metastatic Sites longer than in normal bone
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