Mutic S, Low D A, Nussbaum G H, Williamson J F, Haefner D
Mallinckrodt Institute of Radiology, Radiation Oncology Center, St. Louis, Missouri 63110, USA.
Med Phys. 2000 Jan;27(1):141-3. doi: 10.1118/1.598876.
Proper alignment of a needle template and ultrasound software grid is required to accurately deliver permanent prostate seed implants optimized using pretreatment volume studies. Correct alignment may also reduce tissue edema, morbidity, and the time and labor required to deliver permanent prostate seed implants. A technique has been developed to rapidly assess (and, if necessary, improve) the alignment using a custom-designed water phantom. Verification of needle positions can be conducted within 1 mm and requires less than ten minutes. We have instituted the technique as a part of our periodic quality assurance program.
为了准确地植入经预处理体积研究优化后的永久性前列腺籽源，需要使针模板与超声软件网格正确对齐。正确对齐还可以减少组织水肿、发病率以及植入永久性前列腺籽源所需的时间和人力。现已开发出一种使用定制水模快速评估（必要时改善）对齐情况的技术。针位置的验证可在1毫米范围内进行，且所需时间不到十分钟。我们已将该技术作为定期质量保证计划的一部分予以实施。
