A doctor thinks a patient has an intussusception, in which a part of the intestine slides inside itself like the parts of a collapsible telescope. Which imaging technique is the doctor most likely to use? Explain.
Answer
A
X-ray radiography is most likely because it can make an image of a large area of the body.
B
Sonography is most likely because it has good resolution without radiation.
C
X-ray fluoroscopy is most likely because it can monitor the movement of material in real time.
D
A CT scan is most likely because it can form a three-dimensional image of the intestines.