Chuang S, Hochhauser L, Fitz C, Savoie J, Armstrong D, Burrows P, Harwood-Nash D
Department of Radiology, Hospital for Sick Children, Toronto, Ontario, Canada.
Acta Radiol Suppl. 1986;369:645-8.
Sixty CT scans in 31 patients who underwent lumboperitoneal shunting for communicating hydrocephalus showed that the size of the ventricles did not represent a good indicator of shunt malfunction. Instead, we discovered that the size of the basal cisterns around the brain stem enabled us to predict blockage earlier and more reliably. In a well functioning shunt, the basal cisterns are usually not visualized. In children with clinical shunt malfunction the cisterns dilate and become visible again. This occurs earlier and more frequently than ventricular enlargement. We therefore conclude that visible cisterns in association with persistent symptoms of malfunction are more reliable predictors of a true blockage that requires shunt revision than serial studies of ventricular size.
对31例因交通性脑积水接受腰大池腹腔分流术的患者进行的60次CT扫描显示，脑室大小并非分流功能障碍的良好指标。相反，我们发现脑干周围脑基底池的大小能让我们更早且更可靠地预测堵塞情况。在分流功能良好时，脑基底池通常不可见。在有临床分流功能障碍的儿童中，脑基底池会扩张并再次变得可见。这种情况比脑室扩大出现得更早且更频繁。因此，我们得出结论，与持续的功能障碍症状相关的可见脑基底池，相较于对脑室大小的系列研究，是需要进行分流修正的真正堵塞的更可靠预测指标。
