Computerized lateral endoscopic approach to invertebral bodies

Hamid Reza Abbasi M.D.; Sanaz Hariri; Daniel Kim; Ramin Shahidi; Gary Steinberg M.D.

doi:10.1117/12.428053

28 May 2001 Computerized lateral endoscopic approach to invertebral bodies

Hamid Reza Abbasi M.D., Sanaz Hariri, Daniel Kim, Ramin Shahidi, Gary Steinberg M.D.

Proceedings Volume 4319, Medical Imaging 2001: Visualization, Display, and Image-Guided Procedures; (2001) https://doi.org/10.1117/12.428053
Event: Medical Imaging 2001, 2001, San Diego, CA, United States

Abstract

Spinal surgery is often necessary to ease back pain symptoms. Neuronavigation (NN) allows the surgeon to localize the position of his instruments in 3D using pre- operative CT scans registered to intra-operative marker positions in cranial surgeries. However, this tool is unavailable in spinal surgeries for a variety of reasons. For example, because of the spine's many degrees of freedom and flexibility, the geometric relationship of the skin to the internal spinal anatomy is not fixed. Guided by the currently available imperfect 2D images, it is difficult for the surgeon to correct a patient's spinal anomaly; thus surgical relief of back pain is often only temporary. The Image Guidance Laborator's (IGL) goal is to combine the direct optical control of traditional endoscopy with the 3D orientation of NN. This powerful tool requires registration of the patient's anatomy to the surgical navigation system using internal landmarks rather than skin markers. Pre- operative CT scans matched with intraoperative fluoroscopic images can overcome the problem of spinal movement in NN registration. The combination of endoscopy with fluoroscopic registration of vertebral bodies in a NN system provides a 3D intra-operative navigational system for spinal neurosurgery to visualize the internal surgical environment from any orientation in real time. The accuracy of this system integration is being evaluated by assessing the success of nucleotomies and marker implantations guided by NN-registered endoscopy.

Citation Download Citation

Hamid Reza Abbasi M.D., Sanaz Hariri, Daniel Kim, Ramin Shahidi, and Gary Steinberg M.D. "Computerized lateral endoscopic approach to invertebral bodies", Proc. SPIE 4319, Medical Imaging 2001: Visualization, Display, and Image-Guided Procedures, (28 May 2001); https://doi.org/10.1117/12.428053

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KEYWORDS

Surgery

Endoscopy

Image registration

Navigation systems

Skin

Endoscopes

3D image processing

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