Current Treatment Options in Gastroenterology

, Volume 15, Issue 1, pp 168–183 | Cite as

Screening and Surveillance of Colorectal Cancer Using CT Colonography

  • Manoj Kumar
  • Brooks D. CashEmail author
Colon (J Anderson, Section Editor)
Part of the following topical collections:
  1. Topical Collection on Colon

Opinion Statement

Colorectal cancer (CRC) is a common cancer among throughout the world with the highest rates in developed countries such as the USA. There is ample evidence demonstrating the beneficial effects of colorectal cancer screening and, largely thanks to screening initiatives and insurance coverage, epidemiologic analyses show a steady decline in both CRC incidence and mortality rates over the last several decades. However, screening rates for CRC in the US remain low and approximately 1 in 3 adults between the ages of 50 and 75 years has not undergone any form of CRC screening, highlighting the need for additional accurate, minimally invasive, and acceptable screening options. Computed tomography colonography (CTC) has emerged as a viable alternative to existing CRC screening tests and research continues to enhance our knowledge regarding the ability of CTC to play a meaningful role in optimizing CRC screening in areas where it is available. This review highlights recent publications of salient research in the field of CTC. CTC continues to evolve, with lower radiation doses and greater evidence of its ability to identify clinical relevant colonic and extracolonic abnormalities. Recent evidence has bolstered the currently recommended CTC screening interval of 5 years and has reiterated the cost-effectiveness of CTC as a CRC screening examination. Additionally, emerging evidence suggests a role for CTC as a polyp and CRC surveillance modality as well as a preoperative adjunct in patients with established CRC. Data supporting the safety and patient acceptance of CTC also has continued to accumulate and CTC has recently been endorsed as an appropriate test for CRC screening in multiple important guidelines and recommendations. CTC is poised to become an important option in the CRC screening and surveillance arena.


Colorectal cancer screening CT colonography Virtual colonoscopy Colorectal cancer surveillance Colon polyp detection 


Compliance with Ethical Standards

Conflict of Interest

Manoj Kumar and Brooks D. Cash each declare no potential conflicts of interest.

Human and Animal Rights and Informed Consent

This article does not contain any studies with human or animal subjects performed by any of the authors.

References and Recommended Reading

Papers of particular interest, published recently, have been highlighted as: • Of importance; •• Of major importance

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© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  1. 1.Division of GastroenterologyUniversity of South AlabamaMobileUSA

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