Enter Category Name
What radiographic criteria most likely describes a 2-hour radiograph taken during a small bowel series?
1. Stomach barium filled
2. Barium primarily in duodenum
3. Barium primarily in ileum
3 only
What is the central-ray angulation for the PA axial projection of the large intestine?
30 to 40 degrees caudad
Which projection and/or position of the colon best demonstrates the right colic flexure?
PA oblique, RAO
The tip of the catheter is advanced to the ____ during an enteroclysis.
Duodenojejunal junction (ligament of Treitz)
What type of examination should be performed when interested in pathologies affecting the mucosal lining of the intestine?
Double-contrast study
What radiographic criteria would indicate an AP small intestine image was performed at 15-minutes?
1. CR centered 2” above iliac crest
2. Barium-filled stomach
3. Barium-filled cecum
1.2
The degree of body rotation for the PA oblique projection (RAO or LAO) of the large intestine is _____ degrees.
35-45
Which patient position will best demonstrate the medial aspect of the ascending colon and the lateral aspect of the descending colon during a double-contrast barium enema?
Right lateral decubitus
During a double-contrast barium enema procedure, the radiologist suspects a polyp in the lateral aspect of the descending colon. Which patient position would best demonstrate this pathology?
Right lateral decubitus
Describe the CR location for an AP oblique (LPO) projection during a barium enema:
At level of iliac crests, 2” lateral to MSP on elevated side
In which body habitus might the transverse colon be positioned most inferior in the abdominal cavity?
Asthenic
What is the primary reason the large intestine must be thoroughly cleansed before performing a contrast enema study?
Retained fecal matter can simulate pathology
Which patient position will best demonstrates the lateral aspect of the ascending colon and the medial aspect of the descending colon during a double-contrast barium enema?
Left lateral decubitus
A radiograph of an AP barium enema projection reveals poor visualization of the sigmoid due to excessive superimposition of the sigmoid colon and rectum. How can this area be better visualized on the repeat exposure?
Perform AP axial projection with a 30- to 40-degree cephalad CR angle
A student performs a PA oblique projection during a barium enema. The patient was rotated 25-degrees with the right side elevated, CR centered at the iliac crest and 2” lateral to MSP on the elevated side. The anatomy of interest was the right colic flexure. What adjustments does the student need to make before repeating the image?
Rotate the patient to 45-degrees and elevate the left side
Which structures of the large intestine are considered the most posterior?
1. Transverse colon
2. Ascending colon
3. Descending colon
4. Rectum
5. Cecum
2.3.4
What is the maximum height the enema bag should be placed above the table during a barium enema study?
24"
Which aspect of the large intestine is located highest, or most superior, in the abdomen?
Left colic flexure
A patient comes to radiology for a barium enema. He has a possible fistula extending from the rectum to the urinary bladder. Which one of the following projections and/or positions would best demonstrate the fistula?
Lateral rectum
Which examination might a patient undergo to evaluate celiac disease?
Small bowel series
Which of the following projections and/or positions require the CR to be placed at the iliac crests during a barium enema?
1. AP
2. PA axial
3. AP oblique
4. Left lateral decubitus
1,3,4
The AP oblique projection of the colon in the LPO position clearly demonstrates the
Right colic flexure
Which sections of the large intestine will most likely be filled with barium with the patient in the prone position during a double-contrast barium enema (BE)?
Transverse and sigmoid colon
A patient reports abdominal pain and infrequent bowel movements. The physician suspects the patient may have delayed motility. What examination will best demonstrate the patient’s rate of motility in the small intestine?
Small bowel series
Which positions should the patient be placed to demonstrate the left colic (splenic) flexure?
RPO or LAO