Maas R, Kooijman H, Heller M, Langkowski H J, Grabbe E, Bücheler E
Radiologische Klinik des Universitätskrankenhauses Hamburg-Eppendorf, Abt. Röntgendiagnostik.
Rofo. 1987 Oct;147(4):365-74. doi: 10.1055/s-2008-1048659.
Our experience of the effects of metallic foreign bodies on MRT high field examinations is described. In vitro measurements showed moderate magnetic torsion or displacement in a few cases. The findings in 60 patients with various metal foreign bodies and the resulting artifacts are discussed. Despite local loss of information, in the majority of cases there is additional evidence provided by MRT, which suffers less from foreign body artifacts than does CT. Stainless steel implants result in some signal loss and geometric distortion, but do not usually constitute a danger to the patient and do not affect the diagnostic information from surrounding structures.
本文描述了我们关于金属异物对磁共振成像（MRT）高场检查影响的经验。体外测量显示，少数情况下会出现中度磁扭转或移位。本文讨论了60例有各种金属异物患者的检查结果及由此产生的伪影。尽管会出现局部信息丢失，但在大多数情况下，MRT仍能提供额外的证据，其受异物伪影的影响比CT小。不锈钢植入物会导致一些信号丢失和几何变形，但通常不会对患者构成危险，也不会影响来自周围结构的诊断信息。
