Savolaine E R, Greenblatt S H, Rayport M
J Comput Tomogr. 1987 Jul;11(3):221-7. doi: 10.1016/0149-936x(87)90086-5.
We have reviewed our continued experience with computed tomography guided freehand percutaneous brain biopsy using a needle guide sheath of our own devising. The guide sheath is equipped with small metallic marker beads and throws no artifacts. It is useful in demonstrating the exact tip of the guide biopsy sheath in relation to the wall of the intracerebral lesion. The deforming response of the target lesion wall to the guide sheath and the biopsy needle is easily seen using our technique and is highly correlated to obtaining a satisfactory pathologic specimen. Combination of this guide sheath with a suitable computed tomography compatible head frame may represent a highly accurate and reliable but relatively simple guidance system.
我们回顾了使用自行设计的针引导鞘进行计算机断层扫描引导下徒手经皮脑活检的持续经验。该引导鞘配备有小的金属标记珠且不会产生伪影。它有助于显示引导活检鞘的精确尖端相对于脑内病变壁的位置。使用我们的技术可以很容易地看到靶病变壁对引导鞘和活检针的变形反应，并且与获得满意的病理标本高度相关。将这种引导鞘与合适的计算机断层扫描兼容头架相结合可能代表一种高度准确、可靠但相对简单的引导系统。
