Wikkelsö C, Andersson H, Blomstrand C, Matousek M, Svendsen P
Department of Neurology, Sahlgren Hospital, University of Göteborg, Sweden.
Neuroradiology. 1989;31(2):160-5. doi: 10.1007/BF00698846.
Thirty-eight patients with normal pressure hydrocephalus were examined by CT before and after a ventriculo-peritoneal shunt operation. Evans ratio, periventricular hypodensity and width of hemispheric sulci, sylvian fissures, cella media, temporal horns and third and fourth ventricle were examined. Twenty-eight patients improved after the operation while 10 were unchanged (non responders). Those patients who improved had more often enlarged third ventricle, enlarged temporal horns and normal sylvian fissures than those who did not improve. No single CT parameter or combination of CT parameters alone could identify responders and non-responders. The ventriculo-peritoneal shunt operation reduced ventricular size (Evans ratio, cella media width), abolished periventricular hypodensity and reduced width of the temporal horns and third ventricle in both responders and non-responders. Reduction of the width of the third ventricle correlated to clinical improvement.
对38例正常压力脑积水患者在脑室-腹腔分流手术前后进行了CT检查。检查了Evans比率、脑室周围低密度影以及半球脑沟、外侧裂、中脑导水管、颞角、第三和第四脑室的宽度。28例患者术后病情改善，10例无变化（无反应者）。与未改善的患者相比，病情改善的患者更常出现第三脑室扩大、颞角扩大和外侧裂正常。没有单一的CT参数或CT参数组合能够鉴别反应者和无反应者。脑室-腹腔分流手术在反应者和无反应者中均减小了脑室大小（Evans比率、中脑导水管宽度），消除了脑室周围低密度影，并减小了颞角和第三脑室的宽度。第三脑室宽度的减小与临床改善相关。
