ISSN:
1432-1920
Keywords:
Key words Hydroxyapatite orbital implant
;
Magnetic resonance imaging
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract Our aim was to use MRI for the postsurgical assessment of a new form of integrated orbital implant composed of a porous calcium phosphate hydroxyapatite substrate. We studied ten patients 24–74 years of age who underwent enucleation and implantation of a hydroxyapatite ball; 5–13 months after surgery, each patient was examined by spin-echo MRI, with fat suppression and gadolinium enhancement. Fibrovascular ingrowth was demonstrated in all ten patients as areas of enhancement at the periphery of the hydroxyapatite sphere that extended to the center to a variable degree. The radiologist should aware of the MRI appearances of the coralline hydroxyapatite orbital implant since it is now widely used following enucleation. MRI is a useful means to determine successful incorporation of the substrate into the orbital tissues. The normal pattern of contrast enhancement should not be mistaken for recurrent tumor or infection.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00596547
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