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对耳植入器相关的磁共振成像人工物进行系统审查:对临床成像的影响

Joseph M Berry, James B Tansey, Lin Wu¹

¹Research and Learning Services, University of Tennessee Health Science Center Library.

Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology

|January 23, 2024

概括

像特定的MRI序列和最佳磁铁放置等策略显著减少了耳植入患者的人工物. 正确的头部定位也是获得更清晰的磁共振成像 (MRI) 结果的关键.

科学领域:

医疗成像医学成像
耳鼻喉科耳鼻喉科耳鼻喉科
生物医学工程生物医学工程

背景情况:

耳植入物 (CIs) 对于恢复听力至关重要,但可以在磁共振成像 (MRI) 中引起人工物.
缓解这些人工物对于CIs患者的准确诊断成像至关重要.

研究的目的:

系统地审查和巩固与耳植入物相关的MRI人工物减少策略.
评估对人工物减轻技术的体内和体外研究.

主要方法:

对多个数据库 (MEDLINE-Ovid,Embase,Scopus等) 进行全面的系统审查. 这项研究将持续到2022年4月.
数据选,资格评估和质量评估遵循已确定的指南 (科克兰手册,PRISMA,NIH).

主要成果:

包括27项研究,分析了各种MRI场强度 (1.5T,3T,7T) 和工件减少方法.
核磁共振 (脊柱回声,脂肪抑制) 和磁铁定位 (距离EAC>6.5厘米) 是减少文物的关键因素.
扩散加权成像显示了更高的文物,而快速旋转回声/轮旋转回声和脂肪抑制产生了更少的文物.

结论:

最佳的磁铁放置 (>6.5厘米后方的外部听觉通道) 是至关重要的.
特定的MRI序列,包括旋回回声和脂肪抑制技术,有效地将文物最小化.
适当的患者头部定位进一步有助于减少MRI工件的尺寸和形状.

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