COCHLEAR IMPLANTS AS A CONTRAINDICATION TO MAGNETIC-RESONANCE-IMAGING

被引：47

作者：

PORTNOY, WM ^{[1
]}

MATTUCCI, K ^{[1
]}

机构：

[1] NEW YORK MED COLL,NEW YORK EYE & EAR INFIRM,DEPT OTOLARYNGOL,NEW YORK,NY

来源：

ANNALS OF OTOLOGY RHINOLOGY AND LARYNGOLOGY | 1991年 / 100卷 / 03期

关键词：

COCHLEAR IMPLANT; MAGNETIC RESONANCE IMAGING;

D O I：

10.1177/000348949110000305

中图分类号：

R76 [耳鼻咽喉科学];

学科分类号：

100213 ;

摘要：

Magnetic resonance imaging poses little risk to the majority of patients undergoing scanning. However, cochlear implantation should pose a contraindication to this imaging process. This conclusion is based on several findings of in vitro testing of three cochlear implants: the 3M/House and 3M/Vienna designs and the Nucleus device. Specifically, tremendous torques are generated by each of these devices when they are introduced into the coil of a magnetic resonance imager; in addition, the 3M products not only were noted to induce an electrical current, but also were significantly magnetized and rendered afunctional. The clinical implications are discussed.

引用

页码：195 / 197

页数：3

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