Effect of 3D ultrasound probes on the accuracy of electromagnetic tracking systems
Effect of 3D ultrasound probes on the accuracy of electromagnetic tracking systems
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DOI：
10.1016/j.ultrasmedbio.2006.05.013
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发表时间：
2006-09-01
影响因子：
2.9
通讯作者：
Wolf, Ivo
中科院分区：
文献类型：
--
作者：
Hastenteufel, Mark;Vetter, Marcus;Wolf, Ivo
在过去的几年中，3D超声探头已经变得容易获得。通过将小型电磁位置传感器连接到3D超声探头，开辟了图像引导手术应用的新领域。然而，关于电磁传感器的3D超声探头引起的失真还一无所知。进行了几项试验，以研究最先进的电磁跟踪系统与3D超声探头结合使用时的误差倾向。已经发现，3D超声探头确实比2D探头更能使电磁传感器失真。当将电磁传感器连接到3D探头时，最大误差为5 mm，最大误差为119 mm。这种失真在很大程度上取决于电磁技术以及所使用的探头技术。因此，对于使用电磁跟踪技术的3D超声引导应用，必须仔细检查超声探头和电磁传感器的干扰。
In the last few years, 3D ultrasound probes have became readily available. New fields of image-guided surgery applications are opened by attaching small electromagnetic position sensors to 3D ultrasound probes. However, nothing is known about the distortions caused by 3D ultrasound probes regarding electromagnetic sensors. Several trials were performed to investigate error-proneness of state-of-the-art electromagnetic tracking systems when used in combination with 3D ultrasound probes. It was found that 3D ultrasound probes do distort electromagnetic sensors more than 2D probes do. When attaching electromagnetic sensors to 3D probes, maximum errors of 5 mm up to 119 rum occur. The distortion strongly depends on the electromagnetic technology as well on the probe technology used. Thus, for 3D ultrasound-guided applications using electromagnetic tracking technology, the interference of ultrasound probes and electromagnetic sensors have to be checked carefully.