Integrated and interactive position tracking and imaging of interventional tools and internal devices using small fiducial receiver coils
Integrated and interactive position tracking and imaging of interventional tools and internal devices using small fiducial receiver coils
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DOI：
10.1002/mrm.1910400617
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发表时间：
1998-12-01
影响因子：
3.3
通讯作者：
DeSouza, NM
中科院分区：
文献类型：
--
作者：
Coutts, GA;Gilderdale, DJ;DeSouza, NM
描述了一种跟踪MR扫描器内的刚性设备的位置并利用由设备的当前位置确定的图像切片位置进行成像的方法，使得可以以鲁棒的交互式方式实现设备的操纵。该装置可以在患者的外部或内部。位置跟踪通过两个或三个连接到各个接收器通道的小型MR接收器线圈来执行。每个线圈包含一个小样本，用作基准点（MR可见标记点）。成像由附接到另一接收通道的任何合适的接收器线圈执行。该方法在MR引导程序领域和使用腔内线圈的MR成像领域都具有大量应用。特别地，描述了两种装置，第一种是用于MR引导活检的装置，第二种是用于肛门括约肌的动态直肠内成像的装置。
A method is described of tracking the position of a rigid device within an MR scanner and imaging with the image slice position determined by the current position of the device, such that the manipulation of the device can be achieved in a robust, interactive manner. The device can be either external or internal to the patient. The position tracking is performed by means of two or three small MR receiver coils attached to individual receiver channels. Each coil contains a small sample that acts as a fiducial (MR-visible marker point). The imaging is performed by any suitable receiver coil attached to a further receive channel. This method has a large number of applications, both in the field of MR-guided procedures and in MR imaging using endocavitary coils. In particular, two devices are described, the first being a device for MR-guided biopsies and the second being one for dynamic endorectal imaging of the anal sphincter.