PI may result the dissection of gas into the bowel wall due to increased pressure from the bowel lumen
or the entrance of gas-forming bacilli in the bowel wall (2).
The mass completely filled the small bowel lumen
, such that it could not be retrieved.
It promotes shifting of fluid into the bowel lumen
and increases the pressure gradient across an obstructive site.
Specifically, on T1-weighted imaging these agents demonstrate low signal intensity, thus allowing for improved contrast between bowel lumen
and bowel wall, and improving detection of pathologic wall hyper-enhancement.
Rigid or (preferably) flexible sigmoidoscopy helps to the diagnosis of SV by direct visualization of the obstructive bowel lumen
In the hepatocytic acquisition phase the contrast filled the biliary tree and the bowel lumen
, but not inside the cyst lumen (Figure 5).
The mechanism of small bowel injury in blunt trauma often involves vertebral compression because of trauma experienced by the abdominal wall, leading to increased pressure in the bowel lumen
Volvulus describes the condition in which the bowel becomes twisted on its mesenteric axis, a situation that results in partial or complete obstruction of the bowel lumen
and a variable degree of impairment of its blood supply.
The classic Riglers triad of radiography includes mechanical bowel obstruction pneumobilia and an ectopic gallstone within bowel lumen
Recent reports describing bowel perforation during PCNL have emphasized the opportunity for non-operative management for the injury, with placement of the percutaneous nephrostomy tube into the bowel lumen
to act as a drain.
The disease process can make the bowel lumen
narrow and tortuous, (Figure 6), making it painful and difficult to negotiate with a colonoscope and placing the patient at increased risk of colonic perforation.
We placed magnetic toy beads within the bowel lumen
at intervals along its length.