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Proceedings Paper

MR imaging guidance for minimally invasive procedures
Author(s): Terence Z. Wong M.D.; Joachim Kettenbach; Stuart G. Silverman; Richard B. Schwartz; Paul R. Morrison; Daniel F. Kacher; Ferenc A. Jolesz
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Paper Abstract

Image guidance is one of the major challenges common to all minimally invasive procedures including biopsy, thermal ablation, endoscopy, and laparoscopy. This is essential for (1) identifying the target lesion, (2) planning the minimally invasive approach, and (3) monitoring the therapy as it progresses. MRI is an ideal imaging modality for this purpose, providing high soft tissue contrast and multiplanar imaging, capability with no ionizing radiation. An interventional/surgical MRI suite has been developed at Brigham and Women's Hospital which provides multiplanar imaging guidance during surgery, biopsy, and thermal ablation procedures. The 0.5T MRI system (General Electric Signa SP) features open vertical access, allowing intraoperative imaging to be performed. An integrated navigational system permits near real-time control of imaging planes, and provides interactive guidance for positioning various diagnostic and therapeutic probes. MR imaging can also be used to monitor cryotherapy as well as high temperature thermal ablation procedures sing RF, laser, microwave, or focused ultrasound. Design features of the interventional MRI system will be discussed, and techniques will be described for interactive image acquisition and tracking of interventional instruments. Applications for interactive and near-real-time imaging will be presented as well as examples of specific procedures performed using MRI guidance.

Paper Details

Date Published: 2 April 1998
PDF: 9 pages
Proc. SPIE 3249, Surgical Applications of Energy, (2 April 1998);
Show Author Affiliations
Terence Z. Wong M.D., Brigham and Women's Hospital/Harvard Medical School (United States)
Joachim Kettenbach, Brigham and Women's Hospital/Harvard Medical School (United States)
Stuart G. Silverman, Brigham and Women's Hospital/Harvard Medical School (United States)
Richard B. Schwartz, Brigham and Women's Hospital/Harvard Medical School (United States)
Paul R. Morrison, Brigham and Women's Hospital/Harvard Medical School (United States)
Daniel F. Kacher, Brigham and Women's Hospital/Harvard Medical School (United States)
Ferenc A. Jolesz, Brigham and Women's Hospital/Harvard Medical School (United States)


Published in SPIE Proceedings Vol. 3249:
Surgical Applications of Energy
Thomas P. Ryan, Editor(s)

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