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Colonic sonography: preliminary observations
D F Walter1, S Govil, R R William
1Department of Radiodiagnosis, Christian Medical College and Hospital, Vellore, Tamil Nadu, India.
Clinical Radiology
|March 1, 1993
Summary
Transrectal water instillation, or colonic sonography (CS), offers a promising new method for detecting significant large bowel abnormalities. This technique shows high sensitivity for conditions like tuberculosis, ulcerative colitis, and cancer.
Area of Science:
- Gastroenterology
- Medical Imaging
- Diagnostic Techniques
Background:
- Transrectal water instillation is a novel technique for enhancing colon imaging.
- Colonic sonography (CS) aims to improve visualization of the colon's lumen and wall.
Purpose of the Study:
- To evaluate the accuracy of colonic sonography (CS) in detecting large bowel abnormalities.
- To compare CS results with colonoscopy and surgical findings.
Main Methods:
- 100 consecutive patients underwent colonic sonography.
- Results were validated against colonoscopy and surgical outcomes.
Main Results:
- CS demonstrated high sensitivity: 91% for colonic tuberculosis, 89% for ulcerative colitis, and 83% for colonic cancers.
- The technique visualized the entire colon more consistently than colonoscopy.
- CS effectively assessed disease extent and extra-colonic spread, unaffected by fecal material.
Conclusions:
- Colonic sonography is a promising technique for identifying significant colonic pathology.
- Further comparative studies with existing modalities are warranted.
- CS is well-tolerated and accurately detects major colonic diseases.