Onkológia 2/2013

The role of CT in oncology irrigography

Colorectal cancer is a common malignancy that results in significant morbidity and mortality. CT irigography is an evolving noninvasive imaging technique that relies on performing thin-section CT of the colon evaluating data using both 2D and 3D images. A clean and well-distended colon facilitates detection of colorectal abnormalities whether 2D and 3D techniques are used for data interpretation. Is valuable in planning surgery for colon cancer because it can demonstrate regional extension of tumor as well as adenopathy and distant metastases. Also complications of primary colonic malignancies such as obstructions, perforations, and fistulas can be readily visualized with CT irigography. The liver is the predominant organ to be involved with metastases from colorectal cancer. Other common sites of metastases from colon cancer include the lungs, adrenal glands, and bones. CT is applicable for identifying recurrences, evaluating anatomic relationships, documenting „normal“ postoperative anatomy, and confirming the absence of new lesions during and after therapy.

Keywords: CT irigography, colorectal cancer, TNM staging, colon distension.