GI Gurus
What is a bezoar?
What is a mass of undigested material?
These three bones form the acetabulum.
What are the ilium, the ischium, and the pubis?
If the lesser trochanters are prominently visible on an AP hip, this positioning error has occurred.
What is external rotation of the femur?
Asymmetry of the obturator foramina on a pelvis image indicates this positioning error
What is rotation?
Where is the liver?
This is the primary reason a water-soluble contrast agent is used instead of barium in GI imaging.
What is suspected perforation?
The forward slipping of the vertebra.
What is Spondylolisthesis?
This positioning adjustment is required to place the femoral neck parallel to the IR for an AP hip, assuming no trauma.
What is 15–20 degrees of internal rotation of the legs?
On an AP pelvis, the femoral neck is not clearly visualized. What positioning adjustment is needed?
What is internal rotation of lower limbs 15–20°?
This imaging study specifically visualizes the biliary ducts without focusing on the gallbladder.
What is cholangiography?
Apple core lesion on a radiograph indicates what pathology?
What is colon cancer?
In the oblique lumbar spine, this structure forms the “ear” of the Scotty dog.
What is the superior articular process?
Posterior oblique positioning for SI joints requires this degree of body rotation.
What is 25–30 degrees?
On a lateral lumbar spine radiograph, the lumbar vertebrae appear not well aligned, with increased rotation and the intervertebral spaces not uniformly open. This is most likely due to failure to use this positioning aid.
What is positioning sponge?
This hormone, released from the duodenum, stimulates gallbladder contraction.
What is cholecystokinin (CCK)?
This is the best study for a gastric ulcer. Be specific.
What is a double contrast UGI?
This part of the vertebra forms the posterior boundary of the vertebral foramen.
What is the lamina?
This specialized projection is used for a lateral hip on patients with bilateral femoral fractures, or patients unable to mobilize due to postoperative requirements.
What is Clements-Nakayama?
Failure to visualize T1 on a lateral C-spine indicates this projection is necessary. (True projection name)
What is the lateral cervicothoracic projection?
This is the functional unit of the kidney.
What is the nephron?
During a double-contrast UGI, this position best demonstrates the pylorus and duodenal bulb in profile.
What is RAO position?
This region of the vertebra is most commonly affected in spondylolysis.
What is the pars interarticularis?
On an AP pelvis, the obturator foramen on the right appears narrowed while the left appears widened. This indicates the patient is in this position.
What is RPO?
On an AP thoracic spine radiograph, the thoracic vertebrae appear more distorted, with the lower thoracic spine demonstrating increased lordotic curvature that reduces overall visibility of the vertebral bodies. What positioning step was most likely not performed?
What is flexion of the patient knees?
This condition appears as dilation of the renal pelvis due to obstruction
What is hydronephrosis?