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首页> 外文期刊>Surgical Endoscopy >Real-time magnetic resonance imaging driven by electromagnetic locator for interventional procedure and endoscopic therapy.
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Real-time magnetic resonance imaging driven by electromagnetic locator for interventional procedure and endoscopic therapy.

机译：由电磁定位器驱动的实时磁共振成像，用于介入程序和内窥镜治疗。

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摘要

BACKGROUND: Surgical navigation systems using an optical position sensor have the occlusion problem due to a person or instrument in the line of sight of the camera. In this study, occlusion-free real-time magnetic resonance (MR) scanning with a passive electromagnetic locator is proposed. METHODS: A newly developed converter transforms the data of an electromagnetic locator into that of an optical sensor. Registration between the two different coordinate systems is performed for the electromagnetic locator to substitute the optical sensor without modifying the MRI system. RESULTS: An oil marker attached to the electromagnetic locator was identified in real-time MR images. Preliminary results demonstrated the high usability of the electromagnetic locator as an alternative position tracking method in the MR gantry. CONCLUSIONS: The occlusion problem of optical sensors is resolved by the proposed method.
机译：背景技术使用光学位置传感器的手术导航系统由于照相机视线内的人或仪器而存在遮挡问题。在这项研究中，提出了使用无源电磁定位仪的无阻塞实时磁共振（MR）扫描。方法：新开发的转换器将电磁定位器的数据转换为光学传感器的数据。执行两个不同坐标系之间的配准，以使电磁定位器替换光学传感器，而无需修改MRI系统。结果：在实时MR图像中识别出附着在电磁定位器上的油标。初步结果表明，电磁定位器在MR龙门架中作为替代位置跟踪方法具有很高的可用性。结论：该方法解决了光学传感器的遮挡问题。

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