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Vertebral Shape: Automatic Measurement with Active Shape Models¹

¹ From the Departments of Medical Biophysics (P.P.S., C.J.T.) and Diagnostic Radiology (J.E.A.), University of Manchester, Oxford Rd, Manchester, M13 9PT, England. From the 1997 RSNA scientific assembly. Received January 6, 1998; revision requested March 18; revision received August 11; accepted October 26. Address reprint requests to J.E.A.

The shape and appearance of the spine on lateral dual x-ray absorptiometry scans were statistically modeled. To measure vertebral shape accurately, rapidly, and automatically with a computer, this trained model was matched to findings on previously unseen scans. The technique obtained entire shape information, was faster than manual analysis, and was as accurate as human observers in the measurement of vertebral shape.

Index terms: Bones, absorptiometry, 30.1295 • Computers, diagnostic aid, 30.1295 • Images, analysis, 30.1295 • Images, interpretation, 30.1295

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				K. L. Weiss, J. M. Storrs, and R. B. Banto Automated Spine Survey Iterative Scan Technique Radiology, April 1, 2006; 239(1): 255 - 262. [Abstract] [Full Text] [PDF]