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Current Status of MR Colonography1

Current Status of MR Colonography1 MR colonography is discussed and illustrated in terms of techniques and indications, imaging findings, relative strengths and weaknesses compared with CT colonography, consensus on its current role, and future developments and research directions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Radiographics Radiological Society of North America, Inc.

Current Status of MR Colonography1

Radiographics , Volume 30 (1): 18 – Jan 22, 2010

Current Status of MR Colonography1

Note: This copy is for your personal non-commercial use only. To order presentation-ready copies for distribution to your colleagues or clients, contact us at www.rsna.org/rsnarights. EDUCATION EXHIBIT Current Status of MR Colonography Eavan Thornton, MD • Martina M. Morrin, MD • Judy Yee, MD Online-Only CMe See www.rsna The search for an acceptable colorectal cancer screening examination .org/education has led to the development of virtual colonoscopy, which includes /rg_cme.html both computed tomographic (CT) colonography and magnetic reso- nance (MR) colonography. As indicated by the much larger number le ARnin G of published studies on CT colonography than on MR colonography, OBJeCTiVeS multidetector CT appears to be more suitable for colorectal screening After reading this article and taking than does MR colonography, in part reflecting the ease and speed of the test, the reader performing CT, as well as the increased spatial resolution, decreased will be able to: cost, and wider availability of CT colonography. The main advantage ■ Discuss the ad- vantages and disad- of MR colonography over CT colonography is that it does not use ion- vantages of virtual izing radiation, which has important implications for colorectal cancer colonoscopy (CT colonography and screening. The use of dark-lumen MR colonography to screen patients MR colonography). for colorectal cancer as well as other abdominopelvic disease could ■ Describe the vari- make it more attractive than CT. With the integration of 3.0-T MR ous techniques used in MR colonography. colonography, fecal tagging, and parallel imaging into research and ■ List the indica- clinical settings, new MR colonography protocols must be optimized. tions for MR Future MR colonography research should address issues such as im- colonography. age characteristics, presence of artifacts, management of specific ab - sorption rate, and hardware-related modifications. RSNA, 2010 •...
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Publisher
Radiological Society of North America, Inc.
Copyright
© RSNA, 2010
ISSN
1527-1323
eISSN
0271-5333
DOI
10.1148/rg.301095519
pmid
20083594
Publisher site
See Article on Publisher Site

Abstract

MR colonography is discussed and illustrated in terms of techniques and indications, imaging findings, relative strengths and weaknesses compared with CT colonography, consensus on its current role, and future developments and research directions.

Journal

RadiographicsRadiological Society of North America, Inc.

Published: Jan 22, 2010

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