Volvulus diagnostic study of choice
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Hadeel Maksoud M.D.[2]
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Overview
Abdominal CT is the diagnostic study of choice for suspected volvulus. Findings with CT include a whirl pattern denoting a dilated colon segment and a bird beak appearance of the afferent and efferent segment of colonic segments.
Diagnostic Study of Choice
Gold standard/Study of choice:
- Abdominal CT is the gold standard test for the diagnosis of volvulus.[1][2]
- The following result of abdominal CT is confirmatory of volvulus:
- Whirl pattern signifying a dilated colon
- Bird beak appearance of afferent and efferent colonic segments
- The abdominal CT should be performed when:
- The patient presented with symptoms of abdominal pain, distension, constipation/obstipation and nausea.
Diagnostic study of choice for volvulus
| Sensitivity | Specificity | |
|---|---|---|
| Test 1 | ✔ | ...% |
| Test 2 | ...% | ✔ |
✔= The best test based on the feature
Sequence of Diagnostic Studies
The abdominal CT should be performed when:
- The patient presented with symptoms of abdominal pain, abdominal distension, nausea and constipation.
- This is also done to rule out other causes of intestinal obstruction and abdominal pain.
Diagnostic Criteria
- Volvulus is mainly diagnosed based on clinical presentation.
- There are no established criteria for the diagnosis of volvulus.