MRI Findings of Fibrovascularization in Hydroxyapatite Orbital Implants.
- Author:
Byoung Sun AHN
1
;
Kyung In WOO
;
Yoon Duck KIM
Author Information
1. Department of Ophthamology, College of Medicine, Sungkyunkwan University, Samsung Medical Center.
- Publication Type:Original Article
- Keywords:
Fibrovascular ingrowth;
Hydroxyapatite;
Magnetic resonance imaging;
Volume
- MeSH:
Durapatite*;
Magnetic Resonance Imaging*;
Orbit*;
Orbital Implants*
- From:Journal of the Korean Ophthalmological Society
1999;40(1):1-9
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
To evaluate the degree of fibrovascular ingrowth in hydroxyapatite orbital implant, we performed gadolinium-enhanced T1 weighted magnetic resonance imaging in 10 eyes elapsed 6 months after hydrovyapatite implantation and on 6 eyes at 1, 2, 3, 4, and 6 months after hydroxyapatite implantation, and calcualted the volume of enhanced area. In 10 eyes elapsed 6months after hydroxyapatite implantation, all showed enhancement over 90%(average, 93.6%). In 6 eyes examined at 1, 2, 3, 4, and 6 months after hydroxyapatite implantation, the average percentage of enhanced area was 73.2% at 1 month, 76.0% at 2 months, 80.0% at 3 months, 89.8% at 4 months, and 92.0% at 6 months. the enhanced volume was over 90% at 4 months after the implantation in almost all cases. In hydroxyapatite orbital implantation done by our modified procedures, we suggest that the drilling for peg placement is possible 4 months after the implantation.
