Incidental discovery of circle contact lens by MRI: you can’t scan my poker face, circle contact lens as a potential MRI hazard

BMC Medical Imaging

Yoshito Tsushima¹  Azusa Tokue¹  Ayako Taketomi-Takahashi¹  Hiroyuki Tokue¹ 

[1] Department of Diagnostic and Interventional Radiology, Gunma University Hospital, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan

关键词: Susceptibility artifact;    Magnetic resonance imaging (MRI);    Color contact lenses;    Circle contact lenses;   

Others  :  1091237
DOI  :  10.1186/1471-2342-13-11

 received in 2012-12-16, accepted in 2013-03-21,  发布年份 2013

【 摘 要 】

Background

Circle contact lenses, also known as color contact lenses and big eye contact lenses, are a type of cosmetic contact lens. It is not generally known that a circle contact lens usually contains iron oxide and other metals, which means their use during magnetic resonance imaging (MRI) is a potential hazard.

Case presentation

We present a rare case of incidental discovery of circle contact lenses by MRI and MRI images of circle lenses in vitro.

Conclusions

Circle contact lenses usually contain iron oxide, which is a known source of susceptibility artifact on MRI. Not only radiologists and radiographers but also referring physicians should be familiar with the imaging findings and potential risk of scanning circle contact lenses by MRI.

【 授权许可】

   
2013 Tokue et al.; licensee BioMed Central Ltd.

【 图 表 】

Figure 2.

Figure 2.

【 参考文献 】

• [1]What Big eyes You have, dear, but Are those contacts risky?. The New York Times; 2010. http://www.nytimes.com/2010/07/04/fashion/04lenses.html webcite (accessed 1st July 2010)
• [2]Color additives in medical devices. U.S. Food and Drug Administration; 2012. http://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/HowtoMarketYourDevice/PremarketSubmissions/PremarketApprovalPMA/ucm142716.htm webcite (accessed 1st July 2010)
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