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【目的】探讨99mTc-DTPA脑池显像在交通性脑积水诊疗中的应用。【方法】对23例脑室扩大患者,腰穿注入99mTc-DTPA后1,3,6,24h进行脑池显像,观察示踪剂分布情况,计算6h和24h前位图像的V/T值。【结果】16例出现左右侧脑室持续显影,且24h图像大脑凸面和上矢状窦区放射性分布明显减少,6h和24h前位图像V/T比值分别为0.42±0.28(n=23)和0.37±0.21(n=23),13例V/T值大于32%的患者进行了侧脑室-腹腔分流术。【结论】脑池显像对交通性脑积水的诊断与鉴别诊断、判断是否具有侧脑室-腹腔分流术适应证、预测、观察分流术的效果及评估分流管阻塞的位置和程度等,均具有较高的临床应用价值。
【Objective】 To investigate the application of 99mTc-DTPA in the diagnosis and treatment of traffic hydrocephalus. 【Methods】 Twenty-three patients with enlarged ventricles were enrolled in the cisterna lumbar puncture at 1, 3, 6, 24 h after lumbar puncture with 99mTc-DTPA. The distribution of tracer was observed and the V / T values of the images at 6 and 24 h were calculated. 【Results】 The left ventricle and the left ventricle were continuously developed in 16 patients, and the radioactive distributions in the convex and superior sagittal sinus areas of 24 h images were significantly decreased. The V / T ratios at 6 h and 24 h were 0.42 ± 0.28 (n = 23) and 0.37 ± 0.21 (n = 23), and 13 patients with V / T> 32% underwent lateral ventricle-peritoneal shunt. 【Conclusion】 Cerebral cisternography can be used to diagnose and differentiate traffic hydrocephalus, to judge whether there is indication of lateral ventricle-peritoneal shunt or not, to predict and observe the effect of shunt and to evaluate the location and degree of shunt obstruction. Has a high clinical value.