Dr.Mohamed Alshekhani

Introduction:

• CRC is amajor cause of morbidity& mortality• CRC screening by fecal occult blood testing (FOBT) has

been shown to reduce CRC mortality &currently used in several European countries.

• Colonoscopy is highly effective for detecting advanced neoplasia& endoscopic polypectomy reduces subsequent CRC-specific incidence & mortality.

• In Europe, colonoscopy is mainly used to investigate FOBT-positive or symptomatic patients, or as a preventive strategy in those with increased CRC risk.

• CTC is a minimally invasive imaging technique that is highly accurate for detecting CRC& adenomatous polyps.

Introduction:

• The technique is standardized & more easily performed than barium enema.

• CTC is the natural replacement for barium enema & a complementary rather than an alternative examination to colonoscopy.

• The procedure requires bowel preparation & colonic inflation ( by a rectal tube) , similar to colonoscopy.

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