This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Radiology
Cardiac CT is done in ____: 
Select and explain. 
A. Early systole, B. Mid systole, C. Mid diastole, D. Early diastole
C: Mid diastole
Answer: C: Mid diastole 
Explanation: Ans. C. Mid diastole* Cardiac CT is done in mid diastole assisted by synchronous ECG gating.* Cardiac CT is an example of multi slice CT/multidetector CT (MDCT).* In spiral CT only one section in one rotation. In MDCT multiple sections in one rotation.* Cardiac CT is done in CAD and for coronary calcium scoring.- Coronary calcium scoring denotes degree of atherosclerosis and is done by the Agatston method.