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Sonographic patterns of distended, fluid-filled bowel
Radiology
|December 1, 1979
Summary
Ultrasound reveals distinct features in fluid-filled bowel, differentiating it from collapsed bowel. These ultrasound signs aid in identifying small and large bowel segments, distinguishing them from abdominal masses.
Area of Science:
- Gastrointestinal imaging
- Medical ultrasonography
Background:
- Bowel visualization on ultrasound is dependent on intraluminal content.
- Distinguishing between collapsed and fluid-distended bowel is crucial for accurate diagnosis.
Purpose of the Study:
- To describe characteristic ultrasound features of fluid-distended small and large bowel.
- To outline methods for differentiating bowel segments and masses using ultrasound.
Main Methods:
- Ultrasound examination of fluid-filled small and large bowel segments.
- Analysis of specific ultrasound signs like the 'keyboard sign' and haustral sacculations.
- Correlation of imaging findings with anatomical location and characteristics.
Main Results:
- Fluid-distended small bowel shows the 'keyboard sign' from valvulae conniventes.
- Ascending and transverse colon identified by haustral sacculations; rectosigmoid by rectal valves.
- Tubular shape, location, and peristalsis help differentiate bowel loops from cystic masses.
Conclusions:
- Ultrasound can reliably identify and differentiate fluid-filled bowel segments based on characteristic features.
- These sonographic findings are valuable for distinguishing bowel from other intra-abdominal cystic structures.
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