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Solid localization marker for MR imaging.

机译:用于MR成像的固体定位标记。

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摘要

A solid, stable material that can be easily cut into unique, identifiable shapes was compared with other localization markers used in magnetic resonance imaging to determine relaxation characteristics and chemical shift. The solid marker and the conventional oil-based markers caused substantial chemical shift artifacts and so should never be used when high levels of spatial accuracy are necessary, such as in stereotaxy. Although it had the lowest T2 of all the substances tested, the solid marker was useful in identifying structures when different coils, sequences, and fields of view were used.
机译:可以将易于切割成独特的可识别形状的固体稳定材料与磁共振成像中使用的其他定位标记进行比较,以确定弛豫特性和化学位移。固体标记物和传统的油基标记物会引起大量的化学位移伪影,因此,当需要高水平的空间精度时(例如在立体定位中),切勿使用。尽管它在所有测试物质中的T2最低,但当使用不同的线圈,序列和视野时,固体标记物可用于识别结构。

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