12 March 2014 A global CT to US registration of the lumbar spine
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Abstract
During percutaneous lumbar spine needle interventions, alignment of the preoperative computed tomography (CT) with intraoperative ultrasound (US) can augment anatomical visualization for the clinician. We propose an approach to rigidly align CT and US data of the lumbar spine. The approach involves an intensity-based volume registration step, followed by a surface segmentation and a point-based registration of the entire lumbar spine volume. A clinical feasibility study resulted in mean registration error of approximately 3 mm between CT and US data.
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Simrin Nagpal, Ilker Hacihaliloglu, Tamas Ungi, Abtin Rasoulian, Jill Osborn, Victoria A. Lessoway, Robert N. Rohling, Daniel P. Borschneck, Purang Abolmaesumi, Parvin Mousavi, "A global CT to US registration of the lumbar spine", Proc. SPIE 9036, Medical Imaging 2014: Image-Guided Procedures, Robotic Interventions, and Modeling, 90362O (12 March 2014); doi: 10.1117/12.2043934; https://doi.org/10.1117/12.2043934
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