Comparison of registration accuracy of skin- and bone-implanted fiducials for frameless stereotaxis of the brain: a prospective study.
Comparison of registration accuracy of skin- and bone-implanted fiducials for frameless stereotaxis of the brain: a prospective study.
复制标题
大脑无框架立体定向皮肤和骨骼植入基准点的配准精度比较：一项前瞻性研究。
DOI：
--
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
Sharon Dugan
中科院分区：
文献类型：
--
作者：
M. Ammirati;J. D. Gross;G. Ammirati;Sharon Dugan
前瞻性分析了使用无框架立体定向系统的皮肤和骨植入基准点的配准准确性。28例患者在放置皮肤和骨植入基准标记后接受了轴内肿瘤切除术。两组基准点独立地与术前使用ISG观察棒商标采集的磁共振成像数据集配准。记录均方根误差作为两种基准点配准准确度的客观测量。骨植入基准点配准的均方根误差低于皮肤基准点;然而，这种差异没有统计学意义（p = 0.206）。皮肤和骨植入基准点的配准准确度似乎相似。尽管如此，当在术中期望患者图像空间的重新配准时，例如在患者位置的主要漂移期间或在手术重新定位之后，骨植入基准与皮肤基准相比可能是有利的。
The registration accuracy of skin- and bone-implanted fiducials using a frameless stereotactic system were analyzed prospectively.Twenty-eight patients underwent resection of intra-axial neoplasmas after both skin- and bone-implantable fiducial markers were placed. Both sets of fiducials were independently co-registered to a magnetic resonance imaging data set acquired preoperatively using the ISG Viewing Wandtrade mark. Root mean square errors were recorded as an objective measure of registration accuracy of the two types of fiducials.Root mean square errors of bone-implanted fiducials registration were lower than those of skin fiducials; however, this difference was not statistically significant (p = 0.206).The registration accuracy of skin- and bone-implanted fiducials appears to be similar. Still, bone-implanted fiducials may be advantageous compared to skin fiducials when re-registration of the patient-image space is desired intraoperatively such as during major drift in the patient's position or after surgical repositioning.