Wallner K, Roy J, Zelefsky M, Fuks Z, Harrison L
Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY 10021.
Int J Radiat Oncol Biol Phys. 1994 Jul 1;29(4):863-7. doi: 10.1016/0360-3016(94)90577-0.
To describe a novel way to assure proper needle positioning within the prostate during transperineal implantation, using the urethra as the primary radiographic landmark.
Preoperative computerized tomography (CT) images through the prostate are used to plan optimal transperineal needle-seed placement. When performing the procedure, a Foley catheter, with radio-opaque wire is used to visualize the prostatic urethra fluoroscopically in anterior-posterior and lateral projections. Proper needle placement is determined by their position relative to the urethra.
Sixty patients have been implanted with this method at Memorial Sloan-Kettering Cancer Center from 1990-1992.
The method described here is an improvement over previously described CT-based techniques. It could be used to supplement or replace ultrasound imaging.
描述一种在经会阴植入过程中确保针在前列腺内正确定位的新方法，以尿道作为主要的放射学标志。
通过前列腺的术前计算机断层扫描（CT）图像用于规划最佳的经会阴针籽源放置。进行该操作时，使用带有不透射线导线的 Foley 导管，在前后位和侧位投影下通过荧光透视观察前列腺尿道。根据针相对于尿道的位置确定针的正确放置。
1990年至1992年期间，纪念斯隆凯特琳癌症中心有60例患者采用此方法进行了植入。
本文所述方法是对先前基于CT的技术的改进。它可用于补充或替代超声成像。
