Multidetector computed tomography in large bowel lesions-a study of 100 cases.

Area of Science:

• Radiology
• Gastroenterology
• Oncology

Background:

• Large bowel lesions encompass a range of conditions, from benign polyps to malignant adenocarcinomas.
• Accurate detection and classification are vital for timely and appropriate patient management.
• Multidetector computed tomography (MDCT) offers advanced imaging capabilities for abdominal pathologies.

Purpose of the Study:

• To evaluate the diagnostic role of multidetector computed tomography (MDCT) in detecting and classifying large bowel lesions.
• To assess the accuracy of MDCT in differentiating between benign and malignant etiologies of large bowel pathology.

Main Methods:

• A prospective study involving 100 adult patients over two years.
• Utilized rectal and intravenous contrast with three-dimensional reconstruction.
• Incorporated CT colonography for adenoma evaluation and angiography for ischemic conditions.
• Correlated CT findings with colonoscopy, biopsy, surgical outcomes, or follow-up CT.

Main Results:

• Malignant lesions (55%) were most common, followed by inflammatory (26%), diverticulitis (6%), and ischemic colitis (6%).
• Adenocarcinoma, the predominant malignancy, showed characteristic features like marked/asymmetrical wall thickening and heterogeneous enhancement.
• Inflammatory and ischemic lesions exhibited distinct imaging patterns, including wall thickening, enhancement, and involvement patterns.
• MDCT demonstrated 98.2% accuracy in differentiating benign from malignant large bowel lesions.

Conclusions:

• Multidetector computed tomography (MDCT) is a highly accurate imaging modality for the detection and classification of large bowel lesions.
• MDCT findings provide crucial differentiating features between malignant, inflammatory, and ischemic pathologies.
• The study supports MDCT as the preferred imaging choice for evaluating large bowel diseases.