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Tropical Dental Journal - 1st Pan African international dental journal


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Published in French in Tropical Dental Journal Volume 24 - September 2001 pages 33-37

Artefacts induits par les matériaux de reconstruction odonto-stomatologiques : cas du titaneArtefacts induits par les matériaux de reconstruction odonto-stomatologiques : cas du titane est évalué 1 étoiles par les abonnés Tropical Dental Journal Online

Article Open access

Authors : S. SAVANE, A. C. N'DINDIN, G. B. N'DINDIN, P. A. KOUAME, D. DOYON - Ivory Coast


Résumé

L'IRM devient un important outil d'exploration de la tête et du cou. Cependant, un certain nombre d'alliages dentaires sont à l'origine d'artéfacts, caractérisés par une perte de signal avec des bandes périphériques d'hypersignaux curvilignes linéaires et parfois des distorsions.
Dans ce travail, nous avons étudié les artéfacts causés par le titane, utilisé en implantologie orale. Deux implants expérimentaux ont été testés dans un imageur à haut champ de 1,5 T, suivant 2 séquences couramment utilisés (SE, EG).
L'analyse des images obtenues a montré des surfaces artéfactuelles mineures sans distorsions. Pour minimiser ces "fausses images", le Titane et ses alliages pourraient être une alternative.

Abstract

MRI is becoming an important tool of examination of the head and neck. However, certain dental alloys cause artifacts characterized by a loss of signal surrounded by bright line and sometimes distortions.
In our work, we studied artifacts caused by Titanium, metallic biomaterial used for oral implantology. Therefore, 2 experimental were investigated in a 1,5 T MR unit, with 2 sequences commonly used (SE, GRE).
The investigation showed minor artefacts, without distortions. In order to minimize these "ghost images", the Titanium and its alloys should be an alternative.

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