Yamaguchi K, Sakai H, Higa K, Furukawa F, Endo S
No Shinkei Geka. 1975 May;3(5):381-7.
A radionuclide, when injected intrathecally, normally does not enter into the ventricle system. In our three cases of intra cerebral-ventricular pneumocephalus the radionuclide entered into the ventricle and concentrated in the cyst. Such an abnormal movement of the radionuclide was generally caused by the obstruction of subarachnoid space and the increased C.S.F. absorption in the enlarged ventricle. Under consideration of the pre-and post-operative cisternograms of our three cases we examined the principal factor which brought on the abnormal movement of a radionuclide. Each principal factor was the excessive C.S.F. rhinorrohea in the first case, the increased C.S.F. absorption in the enlarged ventricle and the cyst in the third case. An analysis of our three cases shows that the accumulation of radionuclide into the ventricle system is not necessarily due to the obstruction of subarachnoid space, but also due to more C.S.F. absorption in the ventricle system than that in the subarachnoid space.
放射性核素经鞘内注射后，通常不会进入脑室系统。在我们的3例脑室内积气病例中，放射性核素进入了脑室并在囊肿中聚集。这种放射性核素的异常移动通常是由蛛网膜下腔梗阻和扩大的脑室中脑脊液吸收增加所致。考虑到我们3例患者的术前和术后脑池造影，我们研究了导致放射性核素异常移动的主要因素。每个主要因素在第一例中是脑脊液鼻漏过多，在第三例中是扩大的脑室和囊肿中脑脊液吸收增加。对我们3例病例的分析表明，放射性核素在脑室系统中的积聚不一定是由于蛛网膜下腔梗阻，也可能是由于脑室系统中脑脊液的吸收多于蛛网膜下腔。
