A new robotic needle insertion method to minimise attendant prostate motion
A new robotic needle insertion method to minimise attendant prostate motion
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DOI：
10.1016/j.radonc.2006.06.013
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发表时间：
2006-07-01
影响因子：
5.7
通讯作者：
Lagendijk, Jan J. W.
中科院分区：
文献类型：
--
作者：
Lagerburg, Vera;Moerland, Marinus A.;Lagendijk, Jan J. W.
背景与目的：本研究的目的是探讨一种新的针刺方法（轻叩代替轻推）在减少随之而来的组织运动方面的效果。这在由于针头插入导致的组织运动有问题的应用中是有用的，例如mri引导的前列腺近距离治疗和乳腺活检。在这项研究中，我们将重点关注针插入引起的前列腺运动。材料与方法：对30例经会阴植入基准金标记物用于前列腺调强放疗位置验证的患者进行针刺后前列腺运动的测量。总共有32根针被人工插入前列腺，29根针被机器人原型系统敲开。在超声影像的录像记录上测量前列腺在颅尾方向的运动。采用SPSS统计软件分析两种针刺方式前列腺运动的差异。结果：推针时前列腺运动平均为5.6 mm（范围0.3 ~ 21.6），入针时前列腺运动平均为0.9 mm（范围0 ~ 2.0）（p < 0.001）。结论：针刺入前列腺时前列腺运动明显少于针刺入前列腺时。这一结果对于开发一种轻叩、核磁共振引导的前列腺植入机器人系统非常重要。2006爱思唯尔爱尔兰有限公司版权所有。
Background and purpose: The purpose of this study is to investigate the efficacy of a new needle insertion method (tapping instead of pushing) in reducing attendant tissue motion. This can be useful in applications where tissue motion due to needle insertion is problematic such as e.g. MRI-guided prostate brachytherapy and breast biopsies. In this study we will focus on prostate motion due to needle insertion.Material and methods: Prostate motion due to needle insertion was measured in 30 patients, who were transperineally implanted with fiducial gold markers for position verification in prostate intensity modulated radiotherapy. In total 32 needles were manually pushed into the prostate and 29 were tapped with a prototype robotic system. The prostate motion in the cranio-caudal direction was measured on the video record of the ultrasound images. Differences in prostate motion between the two needle insertion methods were analysed making use of SPSS.Results: The mean prostate motion was 5.6 mm (range 0.3-21.6) when the needle was pushed and 0.9 mm (range 0-2.0) when the needle was tapped into the prostate (p < 0.001).Conclusion: Prostate motion was significantly less when the needle was tapped into the prostate compared to when the needle was pushed. This result is important for the development of a tapping, MRI-guided, prostate implant robotic system. (c) 2006 Elsevier Ireland Ltd. All rights reserved.