In the final step of back projection for a 3 by 3 block of CT data with 4 projections, what number is each voxel divided by to obtain the final result matching the original data?
查看答案
Generally, increasing the number of projections through an object during a CT acquisition:
A. Decreases resolution.
B. Increases resolution.
C. Does not affect resolution.
What can be detected by a head CT scan
A. Intracerebral hemorrhage
B. Skull defect
C. Brain tumor
D. All above
Which imaging modality is commonly used to diagnose coronary artery calcification?
A. Magnetic resonance imaging (MRI)
B. Positron emission tomography (PET)
Computed tomography (CT)
Which of the following statements is correct (only one answer is correct):
A. Barium meals are insoluble in water, and their application as contrast agents is to coat the walls of gastrointestinal organs.
Barium meal slurry is widely used as a vascular imaging agent in CT imaging.
C. Iodine contrast agent needs to be delivered through the rectum due to its toxicity and insolubility.
微信支付 
支付宝支付