Abstract
We prospectively studied 10 patients who were status postenucleation and primary placement of the hydroxyapatite orbital implant. Both the technetium-99m bone scan and gadolinium-enhanced magnetic resonance images (MRI) were obtained on the same day at variable time points in the postoperative period in order to assess the degree of vascularization. Up to 78% of the bone scans were interpreted as being completely vascularized, while only 10% of the corresponding MRI scans were consistent with complete vascularization. Cost analysis showed that MRI was cost-effective imaging modality. We conclude that contrast-enhanced MRI provides a more accurate assessment of vascularization of the hydroxyapatite orbital implant when compared to bone scan.
Publication types
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Comparative Study
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Research Support, Non-U.S. Gov't
MeSH terms
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Adolescent
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Adult
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Aged
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Biocompatible Materials*
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Child
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Contrast Media
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Costs and Cost Analysis
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Durapatite*
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Eye Enucleation
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Eye, Artificial
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Female
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Gadolinium
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Heterocyclic Compounds
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Humans
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Magnetic Resonance Imaging / economics
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Magnetic Resonance Imaging / methods*
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Male
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Middle Aged
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Neovascularization, Physiologic*
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Orbit / blood supply*
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Orbit / diagnostic imaging*
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Organometallic Compounds
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Osseointegration
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Prospective Studies
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Prostheses and Implants*
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Technetium Tc 99m Pentetate
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Tomography, Emission-Computed, Single-Photon / economics
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Tomography, Emission-Computed, Single-Photon / methods*
Substances
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Biocompatible Materials
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Contrast Media
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Heterocyclic Compounds
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Organometallic Compounds
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gadoteridol
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Durapatite
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Gadolinium
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Technetium Tc 99m Pentetate