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电活动可通过心磁图(MCG)这种无创伤性方法定位。本文应用37通道系统的MCG检测预激综合征的旁道位置,收到较好效果。病人与方法:本组选择预激综合征病人7例,年龄28～67岁(平均40.6岁),行MCG检查。操作是在一个磁屏蔽室内进行(两层柔磁物质,中间有铝板分开),以防止外部电磁场的干扰。MCG多通道传感器是在一个内径为19cm的园盘上等距离排列着37个坡度测定仪组成。根据下述要求测定记录时间:在检测对至少记录5次含有delta波的心跳。为了更好地评价,单次记录时间应持续5～10分钟。结果:MCG可以确定旁道部位环体的中心,并指出环体运行直径。有1例病人检测后,使用射频导管从右心房侧壁插入2cm,直至右室游离壁冠状窦
Electrical activity can be localized by the noninvasive method of magnetic resonance imaging (MCG). In this paper, 37-channel MCG system to detect pre-excitation syndrome bypass location, received good results. Patients and Methods: The group selected 7 patients with pre-excitation syndrome, aged 28 to 67 years (mean 40.6 years), MCG examination. The operation is carried out in a magnetically shielded room (two layers of soft magnetic material separated by an aluminum plate in the middle) to prevent interference from external electromagnetic fields. The MCG multi-channel sensor consists of 37 slope gauges equi-distantly arranged on a 19 cm ID disk. The recording time was determined according to the following requirements: At least 5 recordings of a heartbeat containing a delta wave were recorded. In order to better evaluate, a single recording time should last 5 to 10 minutes. Results: The MCG determines the center of the ring at the bypass and indicates the ring’s running diameter. 1 patient after testing, the use of radio frequency catheter insertion from the right atrium wall 2cm, until the right ventricular free wall coronary sinus