Lawrence David A, Lipman Adam T, Gupta Sumeet K, Nacey Nicholas C
Department of Diagnostic Radiology and Medical Imaging, University of Virginia School of Medicine, Charlottesville, VA.
Department of Ophthalmology, University of Virginia School of Medicine, Charlottesville, VA.
Magn Reson Imaging. 2015 Apr;33(3):358-61. doi: 10.1016/j.mri.2014.12.009. Epub 2014 Dec 15.
The case reported is of a 47-year-old man with an undetected ferromagnetic metallic intraocular foreign body in the right eye who underwent elective MR examinations for chronic neck and low back pain. The patient underwent the MR scans and subsequently developed blurred vision in his right eye caused by a hyphema associated with an anterior chamber metallic foreign body. Case reports of orbital injuries in patients with intraocular metallic foreign bodies undergoing MRI are rare, with only one prior report in the radiology literature. While the incidence of intraocular foreign bodies causing injury in patients undergoing MRI is likely rare even among patients with foreign bodies, this case demonstrates that complications from an IMFB can potentially have a subtle presentation. Our case also illustrates potential limitations of pre-MRI safety questionnaires, particularly pertaining to a patient's understanding of the thoroughness of foreign body removal.
报告的病例是一名47岁男性，右眼有一个未被检测到的铁磁性金属眼内异物，因慢性颈部和下背部疼痛接受了选择性磁共振检查。患者接受了磁共振扫描，随后因前房金属异物引起的前房积血导致右眼视力模糊。关于接受磁共振成像检查的眼内金属异物患者眼眶损伤的病例报告很少，放射学文献中仅有一份先前报告。虽然即使在有异物的患者中，眼内异物在接受磁共振成像检查时导致损伤的发生率可能也很低，但该病例表明，眼内金属异物引起的并发症可能有细微表现。我们的病例还说明了磁共振成像检查前安全问卷的潜在局限性，特别是与患者对异物取出彻底性的理解有关。
