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November 1991

Magnetic Resonance Imaging of Eyelid Springs and Gold Weights

Author Affiliations

Aurora, Colo

Arch Ophthalmol. 1991;109(11):1498. doi:10.1001/archopht.1991.01080110032020

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To the Editor.  —We read with great interest the letter by Seiff et al1 in the March 1991 issue of the Archives. We faced a similar predicament and tested gold weights in addition to lid springs. We want to share two points.See also p 1503.Although stainless steel is generally considered to be nonmagnetic, it can become magnetic when bent or formed, as is done for palpebral springs.2 We tested a formed palpebral spring (0.010-in stainless steel wire, Catalog No 200-104, Unitek Corp, Monrovia, Calif) in a high-field-strength 1.5-T magnetic resonance imaging (MRI) system (Signa, General Electric, Milwaukee, Wis). It was held in a palm in front of the magnet before it was placed in the bore of the magnet without any noticeable movement or heating. The stainless steel wire of 302 grade was then taped onto the eyelid of a volunteer (K.M.R.), and an MRI was

Seiff SR, Vestel KP, Truwit CL.  Eyelid palpebral springs in patients undergoing magnetic resonance imaging: an area of possible concern . Arch Ophthalmol . 1991;109:319.Article
New PFJ, Rosen BR, Brady TJ, et al.  Potential hazards and artifacts of ferromagnetic and nonferromagnetic surgical and dental materials and devices in nuclear magnetic resonance imaging . Radiology . 1983;147:139-148.Article