CT REGISTRY questions with correct answers

how do you reduce beam hardening CORRECT ANSWER 1. Increase dose 2. Reduce collimation--Reduce slice thickness 3. Increase window width At what level does the abdominal aortal bifurcate? CORRECT ANSWER L4 What is the typical scan delay after injection of contrast media for studies of the liver? CORRECT ANSWER 30-45 seconds What window settings provide the best tissue differentiation within the liver? CORRECT ANSWER window width= 140, level= 60 What is the window settings that provide the best bone window for the pelvis? CORRECT ANSWER window width=2000, window level=350 What mAs is typically used in routine CT exams of the abdomen? CORRECT ANSWER 200-300 mAs What is the result of the bifurcation of the abdominal aorta? CORRECT ANSWER The right and left common iliac arteries What is the anode target angle? CORRECT ANSW