10 Questions
Uncorrected flood field nonuniformities cause _______ artifacts in tomographic reconstruction.
Circular
Temporal smoothing could be appropriately applied in which of the following studies?
Gated Equilibrium Cardiac Function Study
Center of Rotation should show less than ____mm of variation over a 360 degree orbit.
2
Which adjunctive medication is utilized for the evaluation of biliary atresia?
Phenobarbitol
Personnel must wear a radiation monitoring device during work hours if they are:
Likely to exceed 10% of the annual maximum allowable occupational exposure
If a source of Tc99m radioactive contamination produces an exposure rate of 3 mR/hour, how long will it take for the exposure rate to drop to a background exposure rate of 0.05 mR/hour?
6 half-lives
The limit for administered Mo99 contamination in a solution of Tc99m is no more than:
0.15 uCi Mo99 per mCi Tc99m (5.55 kBq Mo99 per 37 MBq Tc99m)
Which of the following radiopharmaceuticals is used to label white blood cells with Tc99m?
Tc99m Exametazime
How long do you maintain calibration records on a survey meter?
3 years
Based on the data shown, what are the net counts in the cardiac region of interest?
Total counts # pixels
Cardiac ROI 28,503 417
Background ROI 1,859 88
19,694
Uncorrected flood field nonuniformities cause artifacts in tomographic reconstruction. This quiz assesses your understanding of the effects of uncorrected flood field nonuniformities on tomographic reconstruction. Test your knowledge on the impact of these nonuniformities on image quality.
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