Ct Registry Review (Mic) Study Guide Questions And Correct Answers

If we want to generate a diagnostic 3D surface reconstruction of the affected region of the cervical spine, how should the scan be performed? a. at orthogonal orientations through the affected region b. with fairly large gaps between the slices c. at various angles through each affected disk space d. at a single angle through the affected region {Ans: D}How would we expect metal to affect the appearance of a localizer image? a. the CT number of the tissues in the image will be misrepresented b. the metal object will be represented by high CT numbers and there will be no streaks c. the entire image will appear blurry d. streaks will emanate from the metal object in the image. {Ans: B}The human embryo/fetus is most sensitive to radiation when? {Ans: First trimester}Increasing ___________ results in lowering the patient dose 1. pitch 2. mAs 3. table increment {Ans: 1,3}Which of the following combinations of scanning parameters is best for evaluating abnormalities within the petrous pyramids of the temporal bones? a. standard algorithm, window width =300, 0.5 to 2 mm slices b. soft algorithm, window width =300, 0.5 to 2 mm slices c. sharp algorithm, window width=2500,