Effect of 3 T MR1 on the function of shunt valves - Evaluation of Paedi GAV, Dual Switch and proGAV
Effect of 3 T MR1 on the function of shunt valves - Evaluation of Paedi GAV, Dual Switch and proGAV
复制标题
DOI：
10.1016/j.ejrad.2005.03.029
复制
发表时间：
2005-10-01
影响因子：
3.3
通讯作者：
Meixensberger, J
中科院分区：
文献类型：
--
作者：
Lindner, D;Preul, C;Meixensberger, J
随着高场磁共振扫描仪的使用，医疗植入物和器械的磁共振兼容性变得越来越重要。到2004年底，德国将有约20台3T MR投入临床应用.脑积水患者需要频繁的随访MR检查，以确保分流系统的正确功能。我们测试了三种类型的重力阀：Paedi GAV、双开关和作为新型可调压阀的proGAV（Miethke Company，柏林），尚未在3 T下进行评价。总之，有强有力的证据表明暴露于3 T后这些瓣膜的功能得以维持。这也意味着可调压阀，只要在MR检查期间适当调整制动机制。(C)2005爱思唯尔爱尔兰有限公司保留所有权利。
The MR-compatibility of medical implants and devices becomes more and more important with the increasing number of high-field MR-scanners employed. Until the end of 2004, about twenty 3 T MR in Germany will be in clinical practice. Patients with hydrocephalus need frequent follow-up MR-examinations to assure correct functioning of a shunt. We tested three types of gravitational valves: the Paedi GAV, the Dual Switch and as a new programmable valve the proGAV (Miethke Company, Berlin), that have not been evaluated at 3 T, yet. In sum, there is strong evidence for maintenance of function of these valves after exposure to 3 T. This also implies the programmable valve, as long as the brake mechanism is properly adjusted during MR-examination. (C) 2005 Elsevier Ireland Ltd. All rights reserved.