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Published online before print September 21, 2007, 10.1148/radiol.2452060906
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(Radiology 2007;245:556-566.)
© RSNA, 2007

Technical Developments

Breast Cancers: Noninvasive Method of Preoperative Localization with Three-dimensional US and Surface Contour Mapping1

Charlotte J. C. Cash, MRCP, FRCR, Charlotte E. Coles, MRCP, FRCR, Graham M. Treece, MA, PhD, Anand D. Purushotham, MD, FRCS, Peter Britton, FRCS, FRCR, Ruchi Sinnatamby, MRCP, FRCR, Andrew H. Gee, MA, PhD, and Richard W. Prager, MA, PhD

1 From the Departments of Radiology (C.J.C.C.), Oncology (C.E.C.), Surgery (A.D.P.), and Engineering (G.M.T., A.H.G., R.W.P.), Cambridge University, Hills Road, Cambridge CB22QQ, England; and Department of Radiology, Addenbrooke's Hospital NHS Trust, Cambridge, England (P.B., R.S.). Received May 24, 2006; revision requested July 27; revision received October 20; accepted November 21; final version accepted April 2, 2007. Address correspondence to C.J.C.C. (e-mail: cjcc2{at}ukonline.co.uk).

Formal ethical approval was granted by the local research ethics committee; all participants gave written consent. The purpose of the study was to prospectively evaluate the feasibility of a noninvasive method of breast tumor localization in 25 participants, based on the coregistration of three-dimensional (3D) ultrasonographic (US) data with surface contour data obtained by using a 3D laser camera. The tumor is segmented from the US data, and a surface-rendered 3D image of the tumor, in relation to the breast surface contour, is produced. From a personal computer in the operating room, the surgeon can dynamically view a 3D image of the tumor within the breast. This noninvasive method was equivalent to conventional techniques in 18 of 25 patients but was less successful in larger-breasted patients. In selected patients, this localization method could provide an alternative to conventional invasive techniques and can offer both spatial localization and tumor morphology.

© RSNA, 2007






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