Plain film imaging of Baerveldt glaucoma drainage implants.
A glaucoma drainage implant was detected on plain skull radiographs before MR imaging examination of the brain. The patient was denied the MR imaging for fear of dislodging the "metallic foreign body." The Baerveldt glaucoma drainage implant was mistakenly identified as an orbital metallic object based on its radiographic characteristics. Because none of the current glaucoma drainage implants contain ferromagnetic material, patients with these devices can undergo MR imaging without special precaution.
Ceballos
Elizenda M
EM
Department of Ophthalmology, University of Miami School of Medicine, Miami, FL 33136, USA.
Parrish
Richard K
RK
D000368:Aged; D000369:Aged, 80 and over; D003951:Diagnostic Errors; D004867:Equipment Design; D005260:Female; D005548:Foreign-Body Migration / Q000000981:diagnostic imaging; D020327:Glaucoma Drainage Implants / Q000009:adverse effects; D005902:Glaucoma, Open-Angle / Q000000981:diagnostic imaging*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008499:Medical Records; D009798:Ocular Hypertension / Q000601:surgery; D009916:Orbital Diseases / Q000000981:diagnostic imaging / Q000209:etiology; D011859:Radiography; D012886:Skull / Q000000981:diagnostic imaging