Gaiane M. Rauch MD, PhD, Presenter: Nothing to Disclose

Randy Devereux Ernst MD, Abstract Co-Author: Nothing to Disclose

Leonardo Pimentel Marcal MD, Abstract Co-Author: Nothing to Disclose

Haesun Choi MD, Abstract Co-Author: Consultant, Novartis AG

George J. Chang MD, Abstract Co-Author: Nothing to Disclose

Y. Nancy You MD, Abstract Co-Author: Nothing to Disclose

John Skibber MD, Abstract Co-Author: Nothing to Disclose

Miguel Rodriguez-Bigas MD, Abstract Co-Author: Nothing to Disclose

Harmeet Kaur MD, Abstract Co-Author: Nothing to Disclose

To demonstrate the value of high resolution (HR) MRI technique, including thin section HR T2, 3D T2 and DWI, for evaluation of low rectal tumors and for choice of the surgical approach. To discuss the role of HR MRI in complex and unique considerations of presurgical assessment of low rectal tumors.  

Review of the relevant MRI anatomy of the pelvic floor and anal sphincter. Describe the appropriate HR MRI planes for assessment of the relationship of the tumor to the surrounding fixed anatomic structures, such as the pelvic floor and the sphincter mechanism, required for accurate surgical planning. Discuss the role of thin section HR T2, 3D T2 and DWI for evaluation of low rectal tumors. Evaluate key HR MRI features in the presurgical assessment of patients with distal rectal cancer.

Our exhibit demonstrates the value of high quality multiplanar HR MR imaging using thin section HR T2, 3D T2 and DWI for presurgical assessment of low rectal tumors. The HR MRI should provide surgeons with accurate information for correct surgical planning and help to achieve tumor free margins at surgical excision of low rectal tumors.  

Rauch, G, Ernst, R, Marcal, L, Choi, H, Chang, G, You, Y, Skibber, J, Rodriguez-Bigas, M, Kaur, H, Role of the High-Resolution MRI in the Presurgical Evaluation of Low Rectal Tumors.  Radiological Society of North America 2011 Scientific Assembly and Annual Meeting, November 26 - December 2, 2011 ,Chicago IL. http://archive.rsna.org/2011/11002276.html