Chiba Y, Ishiwata Y, Suzuki N, Muramoto M, Kunimi Y
J Neurosurg. 1985 Mar;62(3):363-6. doi: 10.3171/jns.1985.62.3.0363.
A simple method is described for checking the patency of ventriculoperitoneal shunts by using a pair of small disc thermistors. With this technique, shunt patency is shown by a downward deflection of the recording trace, blockage of the ventricular catheter is indicated by a flat-line recording, and obstruction of the distal end of the abdominal catheter is demonstrated by an upward deflection. These observations were confirmed in a study of 32 hydrocephalic patients with obstructed shunts who subsequently underwent shuntography and operation. An experimental model was also devised to study the mechanism of the recording changes.
描述了一种使用一对小型圆盘热敏电阻检查脑室-腹腔分流管通畅性的简单方法。采用这种技术，分流管通畅表现为记录曲线向下偏转，脑室导管堵塞表现为直线记录，腹腔导管远端梗阻表现为向上偏转。在一项对32例分流管梗阻的脑积水患者的研究中证实了这些观察结果，这些患者随后接受了分流管造影和手术。还设计了一个实验模型来研究记录变化的机制。
