Academic Journal
Tolerance and long-term MRI imaging of gadolinium-modified meshes used in soft organ repair.
| العنوان: | Tolerance and long-term MRI imaging of gadolinium-modified meshes used in soft organ repair. |
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| المؤلفون: | Vincent Letouzey, Stéphanie Huberlant, Arnaud Cornille, Sébastien Blanquer, Olivier Guillaume, Laurent Lemaire, Xavier Garric, Renaud de Tayrac |
| المصدر: | PLoS ONE, Vol 10, Iss 3, p e0120218 (2015) |
| بيانات النشر: | Public Library of Science (PLoS), 2015. |
| سنة النشر: | 2015 |
| المجموعة: | LCC:Medicine LCC:Science |
| مصطلحات موضوعية: | Medicine, Science |
| الوصف: | BackgroundSynthetic meshes are frequently used to reinforce soft tissues. The aim of this translational study is to evaluate tolerance and long-term MRI visibility of two recently developed Gadolinium-modified meshes in a rat animal model.Materials and methodsGadolinium-poly-ε-caprolactone (Gd-PCL) and Gadolinium-polymethylacrylate (Gd-PMA) modified meshes were implanted in Wistar rats and their tolerance was assessed daily. Inflammation and biocompatibility of the implants were assessed by histology and immunohistochemistry after 30 days post implantation. Implants were visualised by 7T and 3T MRI at day 30 and at day 90. Diffusion of Gadolinium in the tissues of the implanted animals was assessed by Inductively Coupled Plasma Mass Spectrometry.ResultsOverall Gd-PMA coated implants were better tolerated as compared to those coated with Gd-PCL. In fact, Gd-PMA implants were characterised by a high ratio collagen I/III and good vascularisation of the integration tissues. High resolution images of the coated mesh were obtained in vivo with experimental 7T as well as 3T clinical MRI. Mass spectrometry analyses showed that levels of Gadolinium in animals implanted with coated mesh were similar to those of the control group.ConclusionsMeshes coated with Gd-PMA are better tolerated as compared to those coated with Gd-PCL as no signs of erosion or significant inflammation were detected at 30 days post implantation. Also, Gd-PMA coated meshes were clearly visualised with both 7T and 3T MRI devices. This new technique of mesh optimisation may represent a valuable tool in soft tissue repair and management. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1932-6203 66647819 |
| Relation: | https://doaj.org/toc/1932-6203 |
| DOI: | 10.1371/journal.pone.0120218 |
| URL الوصول: | https://doaj.org/article/085c00bce66647819140879f952c2d31 |
| رقم الانضمام: | edsdoj.085c00bce66647819140879f952c2d31 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 19326203 66647819 |
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| DOI: | 10.1371/journal.pone.0120218 |