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March 4, 2014 | 3D imaging guides orthopedic surgery

Researchers from CEA LIST are helping make life easier for surgeons specializing in corrective osteotomy of the radius. The research, which is part of the EU ITEA Mediate project, is looking at how new 3D imaging methods can help surgeons compare a picture of the actual realignment of two sections of the radius with an image of an « ideal » realignment created prior to the surgery.

CEA LIST developed an algorithm to correct imaging errors generated by the metal pins implanted in the patient. The researchers used an image processing technique called inpainting to minimize the errors’ impact on the 3D image of the actual alignment of the sections of the radius. The institute also implemented iterative algorithms that reduced the number of images needed to reconstruct the 3D image, keeping radiation doses lower for both patients and operating room staff.

The method was developed in conjunction with the Academic Medical Center of Amsterdam and was validated on a human specimen at Digiteo Labs in Saclay. CEA LIST researchers are continuing their work with the Dutch team to produce the 3D bone model from just a few projections.

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