Burl M, Coutts G A, Young I R
Robert Steiner MRI Unit, Hammersmith Hospital, London, United Kingdom.
Magn Reson Med. 1996 Sep;36(3):491-3. doi: 10.1002/mrm.1910360326.
A fiducial marker is described in which a small cell containing a short T1 solution is surrounded by single- or quadrature-tuned windings. It is shown how these can be used to enhance small externally applied RF pulses, which do not significantly perturb the magnetization of the tissue, to excite the fiducial sample, and get substantial signals from it. The fiducials can be used to mark locations on the body unambiguously for, for example, frameless stereotaxy, and to identify coils, catheters, or other inserted devices.
本文描述了一种基准标记物，其中包含短T1溶液的小单元被单通道或正交调谐绕组包围。展示了如何利用这些绕组增强外部施加的小射频脉冲，这些脉冲不会显著干扰组织的磁化，从而激发基准样本并从中获取大量信号。这些基准标记物可用于明确标记身体上的位置，例如用于无框架立体定向，还可用于识别线圈、导管或其他插入装置。
