Safety TopicArticle | 合法醫療器材資訊網

TheseaneurysmclipswereidentifiedwiththelettersFDandhavenotbeenprovensafeunderexposuretoMRI.Forthisreason,Aesculapdoesnotrecommend ...

The surgical management of intracranial aneurysms and arteriovenous malformations (AVMs) by the application of aneurysm clips is a well-established procedure. The presence of an aneurysm clip in a patient referred for an MR procedure represents a situation that requires the utmost consideration because of the associated risks.

Certain types of intracranial aneurysm clips (e.g., those made from martensitic stainless steels such as 17-7PH or 405 stainless steel) are a contraindication to the use of MR procedures because excessive, magnetically induced forces can displace these implants and cause serious injury or death. By comparison, aneurysm clips classified as "nonferromagnetic" or weakly ferromagnetic (e.g., those made from Phynox, Elgiloy, austentitic stainless steels, titanium alloy, or commercially pure titanium) are acceptable for patients undergoing MR procedures.

For t...