Key Questions - Gastrointestinal

What are the appropriate delay times for scanning in the arterial phase and portal venous phase for a 3 mL/s injection?
What seven signs of pancreatic adenocarcinoma are seen on CT?
Can pancreatitis always be diagnosed on the basis of CT findings?
What is the initial study that should be used to evaluate RUQ pain, and why?
What are the hypervascular liver tumors?
How does the size of an adenomatous polyp correlate with the likelihood of developing cancer?
What is Crohn's disease?
How are mechanical obstruction and adynamic ileus distinguished from one another?
Describe a logical approach to evaluating the abnormal small bowel.
What are the normal calibers of the small bowel, the transverse colon, and the cecum?
How can mucosal, deep mucosal or submucosal, and extraluminal or subserosal lesions be differentiated from one another on a contrast study?
List three absolute contraindications to barium enema.
What is the approach to evaluating a conventional abdominal radiograph?
Describe the sentinel clot sign
Describe the concave margin sign
Why is it important to know the location of the subsegments of the liver?
What are the five segments of the liver?