Prospective Evaluation of the Value of Magnetic Resonance Imaging in Suspected Acute Sigmoid Diverticulitis
- 1 December 2008
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in Diseases of the Colon & Rectum
- Vol. 51 (12), 1810-1815
- https://doi.org/10.1007/s10350-008-9330-4
Abstract
The purpose of this study was to prospectively investigate patients with suspected acute colonic diverticulitis and to provide sensitivity, specificity, and interobserver agreement in a blinded trial. Fifty-five patients (29 men; 59 +/- 13 (range, 29-76) years) who reported to the emergency room with clinically suspected acute colonic diverticulitis were prospectively included in the study. All patients underwent magnetic resonance imaging scans of their abdomen before and after contrast agent administration. Two assessors blinded to all clinical, laboratory, and radiologic results evaluated the images separately. The assessors reported colonic wall thickening, segmental narrowing of the colon, presence of diverticula, pericolic fatty infiltration, ascites, and abscesses. The assessors had to diagnose or rule out acute colonic diverticulitis. Sensitivities, specificities, positive, and negative likelihood ratios were derived. To determine interobserver agreement, a Cohen's kappa coefficient was calculated. The two assessors exhibited sensitivities of more than 94 percent, specificities of 88 percent, positive likelihood ratios of more than 7.5, and negative likelihood ratios of less than 0.07. The kappa coefficient showed a significant, strong correlation between both assessors (kappa = 0.68). Magnetic resonance imaging is investigator independent and provides high sensitivity and specificity for the diagnosis of acute colonic diverticulitis.Keywords
This publication has 17 references indexed in Scilit:
- Clinical Relevance of Transabdominal Ultrasonography and Magnetic Resonance Imaging in Patients With Inflammatory Bowel Disease of the Terminal Ileum and Large BowelInflammatory Bowel Diseases, 2004
- Modern Imaging Using Computer Tomography and Magnetic Resonance Imaging for Inflammatory Bowel Disease (IBD) AU1Inflammatory Bowel Diseases, 2004
- Ultrasonography of the acute abdomenRadiologic Clinics of North America, 2003
- Imaging diverticular diseaseBest Practice & Research Clinical Gastroenterology, 2002
- Acute colonic diverticulitis: visualization in magnetic resonance imagingMagnetic Resonance Imaging, 2001
- Application of European Commission reference dose levels in CT examinations in Crete, GreeceThe British Journal of Radiology, 2001
- Diagnosis and treatment of diverticular diseaseSurgical Endoscopy, 1999
- Colonic diverticulitis: evaluation of the arrowhead sign and the inflamed diverticulum for CT diagnosis.Radiology, 1998
- Acute colonic diverticulitis: prospective comparative evaluation with US and CT.Radiology, 1997
- Prospective evaluation of ultrasonography in acute colonic diverticulitisBritish Journal of Surgery, 1997