Accuracy of ultrasound to MR registration of the knee.
Accuracy of ultrasound to MR registration of the knee.
复制标题
超声对膝关节 MR 配准的准确性。
DOI：
10.1002/rcs.170
复制
发表时间：
2008
期刊：
影响因子：
--
通讯作者：
Jaramaz,B
中科院分区：
文献类型：
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作者：
Murtha,PE;Watterson,N;Nikou,C;Jaramaz,B
背景基于超声的3D表面配准从MR成像分割的建议作为一个非侵入性的替代点为基础的配准图像引导手术。通过依赖于诊断MR成像，避免了额外的CT成像（和暴露于辐射）的费用。该技术将使导航在关节镜和其他微创proceedings.MethodsOptically跟踪注册使用点为基础的和基于超声的方法，MR和CT成像体积为两具尸体samples.ResultsThe基准之间的平均RMS距离为0.27毫米的CT和0.72毫米的MR利用点为基础的注册。基于超声的配准到CT的平均RMS距离为0.59 mm，到MR的平均RMS距离为0.76 mm。MR和CT成像体积中共同定位的基准点的RMS距离为0.74 mm。超声配准到MR成像的端到端误差为2.98 mm，与CT的1.65 mm相比，结论超声配准到MR成像数据是一种可行的基于点的配准的无创替代方法。版权所有© 2008约翰威利父子有限公司。
BackgroundUltrasound‐based registration to 3D surfaces segmented from MR imaging is proposed as a non‐invasive alternative to point‐based registration for image‐guided surgery. By relying upon diagnostic MR imaging, the expense of additional CT imaging (and exposure to radiation) is avoided. The technique would enable navigation in arthroscopic and other minimally invasive procedures.MethodsOptically tracked registrations using point‐based and ultrasound‐based methods to MR and CT imaging volumes for two cadaveric specimens were acquired and analysed.ResultsThe average RMS distance between fiducials was 0.27 mm for CT and 0.72 mm for MR utilizing point‐based registration. The average RMS distance for ultrasound‐based registration to CT was 0.59 mm and 0.76 mm to MR. The RMS distance for fiducials co‐located in MR and CT imaging volumes was 0.74 mm. The end‐to‐end error of ultrasound registration to MR imaging was 2.98 mm, as compared to 1.65 mm for CT.ConclusionsUltrasound registration to MR imaging data is a viable non‐invasive alternative to point‐based registration. Copyright © 2008 John Wiley & Sons, Ltd.