Shellock F G, Morisoli S, Kanal E
Department of Radiological Sciences, UCLA School of Medicine.
Radiology. 1993 Nov;189(2):587-99. doi: 10.1148/radiology.189.2.8210394.
To provide information on ferromagnetic metallic implants, materials, and devices that may be exposed to static magnetic fields during magnetic resonance (MR) imaging or spectroscopy.
An updated compilation of the results of more than 80 studies lists the specific object tested, the material used to construct the object, whether the object was deflected or moved during exposure to the static magnetic field, and the highest field strength used for testing the object (range, 0.147-4.7 T).
The ferromagnetic qualities of 338 objects (32 aneurysm and hemostatic clips; six biopsy needles; five carotid artery vascular clamps; 18 dental devices or materials; 11 halo vests; 29 heart valve prostheses; 20 intravascular coils, filters, and stents; 22 ocular implants; 30 orthopedic implants, materials, and devices; 62 otologic implants; 23 pellets and bullets; 13 penile implants; 38 vascular access ports; and 29 miscellaneous objects) are reported.
MR imaging or spectroscopy may be contraindicated in patients with such objects because of the risk of movement or dislodgment of the object.
提供有关在磁共振（MR）成像或波谱分析期间可能暴露于静磁场的铁磁性金属植入物、材料和装置的信息。
一份更新后的80多项研究结果汇编列出了测试的具体物体、用于构建该物体的材料、物体在暴露于静磁场期间是否发生偏转或移动，以及用于测试该物体的最高场强（范围为0.147 - 4.7T）。
报告了338个物体的铁磁特性（32个动脉瘤夹和止血夹；6根活检针；5个颈动脉血管夹；18种牙科装置或材料；11个头环背心；29个心脏瓣膜假体；20个血管内线圈、过滤器和支架；22个眼内植入物；30个骨科植入物、材料和装置；62个耳科植入物；23个弹丸和子弹；13个阴茎植入物；38个血管通路端口；以及29个其他物体）。
由于存在物体移动或移位的风险，对于体内有此类物体的患者，MR成像或波谱分析可能是禁忌的。
