COR high - count extrinsic flood field uniformity correction Jaszczak
Center of Rotation COR - - ANSWER NTRADY12 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 decfection is constant across an surface of
collimated detector . -30-100 mil . counts defeciency 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
SPECT QC NMTCB - ANSWER SPECT / CT QC 1. Peak 2. uniformity 3. Resolution 4. Untarity
5. High Count extrinsic floodfield uniformity Correction B 6 COR Dopamos 7. Jaszczak
8.Source strength 9.Transmission source mechanics
Energy Peak - ANSWER confirm the camera is counting Photon in the Proper energy Win-
dows .
-Transmission source mechanics - ANSWER confirm operation of the source Shutter &
translating mechanics , & reference blank transmission Scan should be acquired . Weekly (
preferably daily)
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,SPECT / CT X - ray based NMTCB QC - ANSWER - all spect / CT QC including CT QC 1.Cali-
bration 2.field uniformity Calibration CT number inserted Phantom L considerd not cali-
brated if error is greater than 5 Hounsfield units Field uniformity ensures uniform response
throughout FOV -
Brain Perfusion raphas - ANSWER Rapha Team Exametazine ECD , Dicisate , Cretec
HMPAO
Brain perfusion dose - ANSWER 10-20mCi
Brain perfusion Indications - ANSWER 1. cerebrovascular disease - acute stroke transient
ische- mic attacks 2. Dementia - Alzheimer's disease , multi - infarct dementia 3. Psychiatric
disorder - affective disorder ( depre && Von Schizophrenia 4. Seizure disorder - idenification
& location of focal epilepsy sites 5. Head Trauma ( cerebral brain death )
Brain perfusion imaging time - ANSWER 15-20min post injection (preferably @ 45min)
Brain cross sections - ANSWER Mans axial Coronal sagital
PET Oncology rapha - ANSWER F18- FDG
FDG-F18 dose - ANSWER 5-20mCi intravenously
FDG-F18 pt questions - ANSWER Pt History , surgenes , chemo radiation therapy , previ-
ous 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 - ANSWER Sr 89 Sm 153 P32
ST89 Chloride half life - ANSWER 50.5day
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, ST89 Chloride analog - ANSWER -calcium analog cleared from blood stream & localizes in
bont
SR89 Chloride localization - ANSWER -localizes in areas of active osteogenesis in meta-
static Sites longer than in normal bone
-Sr 89 dose - ANSWER 40-60uCi & repeat dose @ 12 weeks
Moving a pt from wheelchair to bed; wheelchair is in what degree - ANSWER 45°
Filters that get rid of star artifact - ANSWER Ramp filter, high pass filter
Method of administration for breast - ANSWER Intradermal
Major Radioactive spills activities - ANSWER 1mCi of I131, P32, Sr89
10mCi of Ga68, In111, I123
100mCi of Tc99m, TI201
Furosemide (Lasix) contraindications - ANSWER Anuria, hypersensitivity, hypovolemia,
hypokalemia
Acceptable dose range - ANSWER +/- 20%
Bone Rapha - ANSWER Tc99m MDP & HDP
Prostate rapaha - ANSWER In111 Capromab Pendetide
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