Three-dimensional navigator for retroperitoneal laparoscopic nephrectomy using multidetector row computerized tomography.

J Urol

Division of Medical Intelligence and Informatics, Department of Radiology, Programs for Applied Biomedicine, Graduate School of Biomedical Science, Hiroshima University, Japan.

Published: November 2002

Purpose: We evaluated the efficacy of a 3-dimensional (D) navigator for retroperitoneal laparoscopic nephrectomy.

Materials And Methods: A total of 21 patients with malignant localized renal (16) or ureteral (5) neoplasms underwent multi-detector row computerized tomography. The 3-D navigator was created using volume rendering technique. These findings were compared with videos obtained during laparoscopy.

Results: The 3-D navigator depicted all renal arteries (100% sensitivity) and 24 of the 25 renal veins (96% sensitivity). Hilar anatomy, including the tumor, major vessels and adrenal gland, and their relationships were visualized as in laparoscopic views.

Conclusions: The 3-D navigator has a potentially important role in retroperitoneal laparoscopic nephrectomy. It is able to guide surgeons and aid in avoiding operative risks and possible complications.

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http://dx.doi.org/10.1016/S0022-5347(05)64266-8DOI Listing

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