Intraocular Radio-Opaque Ring.
A radiologist noted a radio-opaque object in the eye of a woman undergoing X-ray examination to determine the safety of magnetic resonance imaging (MRI). Water's X-ray shows the titanium locking c-ring of a type 1 Boston keratoprosthesis. This ring was added in 2004 to prevent intraocular disassembly of the device. The nonmagnetic ring does not prevent MRI imaging. The titanium locking c-ring and the titanium or polymethyl methacrylate back plate of the Boston keratoprosthesis are safe for MRI imaging.
Christine
C
Shieh
Emily
E
Folz
Sharon
S
Fekrat
D001187:Artificial Organs; D001705:Bioprosthesis; D003315:Cornea / Q000000981:diagnostic imaging*; D003316:Corneal Diseases / Q000601:surgery; D005260:Female; D006801:Humans; D009915:Orbit / Q000000981:diagnostic imaging*; D019904:Polymethyl Methacrylate; D011859:Radiography; D014025:Titanium
D019904:Polymethyl Methacrylate; D014025:Titanium