Peritonitis CT: Difference between revisions

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==CT==
==CT==
*Contrast-enhanced CT is useful in identifying an intraabdominal source for infection.
*Contrast-enhanced CT is useful in identifying an intraabdominal source for infection.
* If the diagnosis of peritonitis is made clinically, a CT scan is not necessary and generally delays surgical intervention without offering clinical advantage.
* However, CT scanning is indicated in all cases in which the diagnosis cannot be established on clinical grounds and findings on abdominal plain films.
* CT scans of the abdomen and pelvis remain the diagnostic study of choice for peritoneal abscess and related visceral pathology.
* Whenever possible, the CT scan should be performed with enteral and intravenous contrast.
* CT scans can detect small quantities of fluid, areas of inflammation, and other GI tract pathology, with sensitivities that approach 100%.
* CT scanning can be used to evaluate for ischemia, as well as to determine bowel obstruction.
* An abscess is suggested by the presence of fluid density that is not bound by the bowel or other known structures.
* Gas within an abdominal mass or the presence of an enhancing wall and adjacent inflammatory changes are also highly suggestive of an abscess.
* Ischemia can be demonstrated by a clot in a large vessel or by the absence of blood flow.
* Gas within the intestinal wall or in the portal vein may also suggest ischemia.


==References==
==References==

Latest revision as of 16:02, 30 January 2017

Peritonitis Main Page

Patient Information

Overview

Causes

Classification

Spontaneous Bacterial Peritonitis
Secondary Peritonitis

Differential Diagnosis

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Shivani Chaparala M.B.B.S [2]

Overview

CT

  • Contrast-enhanced CT is useful in identifying an intraabdominal source for infection.
  • If the diagnosis of peritonitis is made clinically, a CT scan is not necessary and generally delays surgical intervention without offering clinical advantage.
  • However, CT scanning is indicated in all cases in which the diagnosis cannot be established on clinical grounds and findings on abdominal plain films.
  • CT scans of the abdomen and pelvis remain the diagnostic study of choice for peritoneal abscess and related visceral pathology.
  • Whenever possible, the CT scan should be performed with enteral and intravenous contrast.
  • CT scans can detect small quantities of fluid, areas of inflammation, and other GI tract pathology, with sensitivities that approach 100%.
  • CT scanning can be used to evaluate for ischemia, as well as to determine bowel obstruction.
  • An abscess is suggested by the presence of fluid density that is not bound by the bowel or other known structures.
  • Gas within an abdominal mass or the presence of an enhancing wall and adjacent inflammatory changes are also highly suggestive of an abscess.
  • Ischemia can be demonstrated by a clot in a large vessel or by the absence of blood flow.
  • Gas within the intestinal wall or in the portal vein may also suggest ischemia.

References

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