Development of titanium-posted keeper-removable magnetic attachment and its effect on magnetic resonance imaging
- VernacularTitle:衔铁可卸式磁性附着体的研制及对MRI影响的对比研究
- Author:
Lihong LIN
;
Yimin ZHAO
;
Shizhu BAI
- Publication Type:Journal Article
- Keywords:
Magnetic attachment;
Magnetic resonance linaging;
Artifact
- From:
Journal of Practical Stomatology
2001;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To develop titanium posted keeper removable magnetic attachment and to decrease its influence on magnetic resonance imaging(MRI). Methods: Pre fabricated soft magnetic alloy pin cap keeper(PSAPK), casting non precious alloycoping keeper(CNPAK), casting precious alloy coping keeper(CPACK), titanium post keeper(TPK) and titanium post(TP) were prepared and applied on the maxilla of a volunteer, MRI was taken and measured. Results: ①The attachments producing artifacts in MRI from the biggest to the smallest were listed in following rank: PSAPK, CNPAK, CPACK, TPK and TP. ②After removing the keeper from titanium post keeper, the post had no artifact on MRI. ③The artifact was the smallest taken with SE sequence. Conclusion: Titanium post keeper is an effective way to solve the artifact problem and will bring benefits to the patients who need MRI examination of head.
