一种设计简单的多功能CT引导立体定向器械。

A multipurpose CT-guided stereotactic instrument of simple design.

作者信息

Van Buren J M, Houdek P, Ginsberg M

出版信息

Appl Neurophysiol. 1983;46(1-4):211-6. doi: 10.1159/000101264.

Abstract

The instrument is based upon a radiolucent ring fixed to the skull by four pins. This locks into a frame for CT scanning from which the x, y and z stereotactic coordinates are derived. The head ring may be locked into a compatible support on the operating table for biopsy. A similar support and localization system is used for rotational radiotherapy. With the current 14 MeV apparatus, fields as small as 2 cm in diameter are available with 90% dosage fall-off in the surrounding 1-cm shell.

摘要

该仪器基于一个通过四根销钉固定在颅骨上的射线可透过的环。这个环锁定在一个用于CT扫描的框架中，从中可以得出x、y和z立体定向坐标。头部环可以锁定在手术台上用于活检的兼容支架上。类似的支架和定位系统用于旋转放疗。对于当前的14兆电子伏特设备，可获得直径小至2厘米的射野，在周围1厘米的范围内剂量下降90%。