固定修复体引起磁共振伪影的研究进展

Research progress of the MRI artifacts produced by fixed partial dentures

固定修复现已成为临床常用的修复方式之一,磁共振成像也已广泛用于影像学的检查和诊断。但是,由于周定修复体不能随意取下,戴有含金属义齿的患者在接受头颈部磁共振扫描时会产生图像伪影,而伪影会不同程度地影响磁共振的成像质量。国内外学者就牙科修复体对磁共振图像的影响进行了大量研究,本文对主要的研究方法、特点和结果进行综述。

Nowadays, fixed partial dentures （FPDs） are usually used in clinic; meanwhile, magnetic resonance imaging （MRI） has become one of the most powerful diagnostic tools in radiology and diagnostic sciences. However, as FPDs can not be taken off arbitrarily, they will produce artifacts in MRI images, which will reduce the quality of images, when the patient with metallic prosthesis in his mouth is subject to MRI scans of the head and neck region. Many scholars have devoted themselves to the study of artifacts produced by fixed partial dentures for a long time. The research methods, characteristics and results are reviewed in this paper. Supported by Shanghai Leading Academic Discipline Project （Grant No.T0202）.