Evaluation of vascularization of coralline hydroxyapatite ocular implants by magnetic resonance imaging.
A coralline hydroxyapatite orbital implant may be placed after ocular enucleation or evisceration. It must be vascularized to support epithelialization of a hole drilled in its anterior face for insertion of a motility peg. We used gadolinium-DTPA enhanced magnetic resonance imaging (MRI) of the orbits of two patients to assess fibrovascular penetration into their implants. MRI provides a reliable determination of implant vascularization and greater anatomic detail than 99m technetium-MDP bone scanning.
Hamilton
H E
HE
Department of Radiology, University of South Alabama Medical Center, Mobile 36617.
Christianson
M D
MD
Williams
J P
JP
Thomas
R A
RA
D000293:Adolescent; D000328:Adult; D017886:Durapatite; D015353:Eye Enucleation; D005137:Eye, Artificial; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D006882:Hydroxyapatites; D008279:Magnetic Resonance Imaging; D008297:Male; D009915:Orbit / Q000098:blood supply; D009942:Organometallic Compounds; D004369:Pentetic Acid; D019736:Prostheses and Implants
D006882:Hydroxyapatites; D009942:Organometallic Compounds; D004369:Pentetic Acid; D017886:Durapatite; D019786:Gadolinium DTPA