pet 1 exam Flashcards
what quality control procedure is not done on pet camera
volumetric quality control
does FBP reconstruction have better signal to noise ratio than iterative reconstruction
no
what is not true about annihilation rxn
the angle of the two annihilation photons emitted may vary 180 degrees due to excess mass of positron (FALSE)
E of N-13
1.19 MeV
singles correction is done to…
correct for efficiency differences among the individual detectors
E of F-18
0.635 MeV
T1/2 Rb-82
76 sec
the range traveled for a positron through tissue is not constant due to…
-differing tissue densities
-energy of the positron
which has longest positron range
O-15
E of Cu-64
0.653 MeV
noise from an image is due to _____ freq
high
daily blank scans check for
working PM tubes that are collecting data
multiple myeloma is scanned
top of head through toes
T-1/2 of N-13
9.97 min
well counter correction is used when
SUV measurements are used
E of Ge-68
0.936 MeV
which cancer uses diuretic before scanning
colon cancer
T1/2 of O-15
122 sec
E of O-15
1.72 MeV
T1/2 of F-18
109.75 min
weekly high count blank scan checks for
correcting geometric inconsistencies within the gantry itself
E of i-124
2.13 mev
t1/2 of cu-64
12.7 hours
normalization correction is done to
correct for efficiency differences in the individual detectors/ crystals
which cancer can occur anywhere
merkel cell lymphoma
band through an image indicates
error with the electronics
if a pt moves during scan the part that moved will have what affect on AC
overcorrected
