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The International Journal of Oral & Maxillofacial Implants
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Int J Oral Maxillofac Implants 30 (2015), No. 2     26. Mar. 2015
Int J Oral Maxillofac Implants 30 (2015), No. 2  (26.03.2015)

Online Article, Page 24-29, doi:10.11607/jomi.3790, PubMed:25830408


Online Article: In Vitro and In Vivo Imaging of Ultra-High-Molecular-Weight Polyethylene Orbital Implants
Olszycki, Marek / Kozakiewicz, Marcin / Elgalal, Marcin / Majos, Agata / Stefanczyk, Ludomir
The aim of this study is to compare magnetic resonance imaging (MRI) with computed tomography (CT) for visualization of an orbital alloplastic prosthesis made of ultra-high-molecular-weight polyethylene (UHMW-PE) both in vitro and in vivo. A study of 15 test implants from UHMW-PE visualized in vitro in CT and MRI and an in vivo visualization in a patient who suffered from orbital injury and underwent reconstructive surgery is presented. The postsurgery MRI showed the UHMW-PE material clearly, with no significant artifacts. The surrounding tissues could be satisfactorily evaluated. The CT scans did not present the graft material. Both techniques were sufficient tools for in vitro evaluation of the shape and measurement of the prosthesis.

Keywords: alloplastic prosthesis, computed tomography, magnetic resonance imaging, orbital injury, ultra-high-molecular-weight polyethylene