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Proceedings Paper

Transsphenoidal pituitary resection with intraoperative MR guidance: preliminary results
Author(s): Richard S. Pergolizzi; Richard B. Schwartz; Liangge Hsu; Terence Z. Wong; Peter McLaren Black; Claudia Martin; Ferenc A. Jolesz
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Paper Abstract

The use of intraoperative MR image guidance has the potential to improve the precision, extent and safety of transsphenoidal pituitary resections. At Brigham and Women's Hospital, an open-bore configuration 0.5T MR system (SIGNA SP, GE Medical Systems, Milwaukee, WI) has been used to provide image guidance for nine transsphenoidal pituitary adenoma resections. The intraoperative MR system allowed the radiologist to direct the surgeon toward the sella turcica successfully while avoiding the cavernous sinus, optic chiasm and other sensitive structures. Imaging performed during the surgery monitored the extent of resection and allowed for removal of tumor beyond the surgeon's view in five cases. Dynamic MR imaging was used to distinguish residual tumor from normal gland and postoperative changes permitting more precise tumor localization. A heme-sensitive long TE gradient echo sequence was used to evaluate for the presence of hemorrhagic debris. All patients tolerated the procedure well without significant complications.

Paper Details

Date Published: 19 May 1999
PDF: 7 pages
Proc. SPIE 3594, Thermal Treatment of Tissue with Image Guidance, (19 May 1999); doi: 10.1117/12.348742
Show Author Affiliations
Richard S. Pergolizzi, Brigham and Women's Hospital/Harvard Medical School (United States)
Richard B. Schwartz, Brigham and Women's Hospital/Harvard Medical School (United States)
Liangge Hsu, Brigham and Women's Hospital/Harvard Medical School (United States)
Terence Z. Wong, Duke Univ. Medical Ctr. (United States)
Peter McLaren Black, Brigham and Women's Hospital/Harvard Medical School (United States)
Claudia Martin, 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. 3594:
Thermal Treatment of Tissue with Image Guidance
Thomas P. Ryan; Terence Z. Wong, Editor(s)

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