| Question 1: Which of the following lists of indications is in order from lowest dose to highest dose? |
| Reference: | ACR dose index data example report data accessible here (accessed 3/24/2022)
https://nrdrsupport.acr.org/support/solutions/articles/11000044558-dir-available-reports?_ga=2.149343349.236218917.1648143265-1450770596.1648143265 |
| Choice A: | Virtual colonoscopy, surgical planning CTA, lumbar spine, renal stone follow up |
| Choice B: | Virtual colonoscopy, renal stone follow up, surgical planning CTA, lumbar spine |
| Choice C: | Lumbar spine, surgical planning CTA, renal stone follow up, virtual colonoscopy |
| Choice D: | Surgical planning CTA, lumbar spine, renal stone follow up, virtual colonoscopy |
| Question 2: Evaluation of which organ requires the highest radiation dose for oncologic staging in the abdomen? |
| Reference: | Low contrast liver lesion detection and characterization is one of the most challenging tasks in oncologic imaging of the abdomen (source Dr. Jensen’s lecture). |
| Choice A: | Kidney |
| Choice B: | Spleen |
| Choice C: | Adrenal Gland |
| Choice D: | Liver |
| Question 3: Which of the following positions would provide the best image quality for an elbow scan? |
| Reference: | Chapter 10 “Patient Positioning” from “The CT Handbook: optimizing protocols for today’s feature-rich scanners” |
| Choice A: | Elbow at patient’s side (lateral to torso, touching torso) |
| Choice B: | Elbow over patient’s abdomen (patient is supine, elbow resting on abdomen) |
| Choice C: | Elbow over patient’s abdomen resting on a pillow (patient is supine, elbow resting away from abdomen on top of a pillow) |
| Choice D: | Elbow at patient’s side near edge of gantry (lateral to torso, away from torso touching gantry housing) |
| Question 4: The delay between start of contrast injection and scanning for a faster scanner relative to a slower scanner should be |
| Reference: | Chapter 8 “CT Contrast” from “The CT Handbook: optimizing protocols for today’s feature-rich scanners” |
| Choice A: | Longer for the faster scanner |
| Choice B: | Shorter for the faster scanner |
| Choice C: | The same scan delays should be used unless scan speeds are over 600 mm/s |
| Choice D: | The delay doesn’t need to be adjusted for scan speed |
| Question 5: For a typical adult patient, in an ideal situation, what is the needle gauge and access point for the optimal administration of contrast? |
| Reference: | https://www.acr.org/-/media/ACR/Files/Clinical-Resources/Contrast_Media.pdf ACR Contrast Manual |
| Choice A: | 20-gauge needle in the right femoral artery |
| Choice B: | 22-gauge in the back of the hand |
| Choice C: | 18-gauge in the antecubital vein |
| Choice D: | 18-gauge in the foot |
| Question 6: How can a site save money by using a weight-based contrast prescription? |
| Reference: | Davenport MS, Parikh KR, Mayo-SmithWW, et al. Effect of fixed-volume and weight-based dosing regimens on the cost and volume of administered iodinated contrast material at abdominal CT. J Am Coll Radiol. 2017; 14:359–370. |
| Choice A: | They would need to buy more contrast and therefore receive volume pricing |
| Choice B: | They would buy higher concentration contrast (i.e., less volume) and therefore buy less volume |
| Choice C: | They can reduce contrast volumes for smaller patients |
| Choice D: | They can reduce contrast volumes for larger patients |
