在1.5T磁共振成像过程中,放射频诱导加热合金修复和牙科植入物
Maryam Paknahad1, Iman Khaleghi2, Seyed Mohammad Javad Mortazavi3,4
1Department of Oral and Maxillofacial Radiology, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
Frontiers in dentistry
|July 12, 2024
概括
这项研究发现,在1.5TMRI扫描期间,牙合金修复和植入物的射频加热是最小的,并且在安全范围内. 合金和植入物都被认为是这种成像方式的"MR安全".
科学领域:
- 生物医学工程 生物医学工程
- 放射学 放射学是一门学科.
- 材料科学 材料科学 材料科学
背景情况:
- 在需要磁共振成像 (MRI) 的患者中,牙修复和植入是常见的.
- 有关MRI扫描期间金属牙科材料可能因射频 (RF) 引起的加热存在担忧.
- 评估这些材料的安全性对于患者护理至关重要.
研究的目的:
- 评估不同合金牙科修复和牙科植入物的射频诱导加热.
- 在1.5特斯拉 (T) MRI检查中确定这些材料的安全性.
主要方法:
- 人类牙的标准化I类腔被用三种类型的非玛-2合金修复.
- 泰坦微型牙植入物也进行了测试.
- 标本接受1.5TMRI,并使用校准温度计监测温度变化.
主要成果:
- 合金修复的温度升高在0.21°C到0.70°C之间.
- 植入物的温度升高在0.35°C至0.47°C之间.
- 在合金类型中没有观察到统计学上显著的温度差异.
结论:
- 经过测试的合金修复和牙科植入物的射频诱导加热处于可接受的安全范围之内.
- 合金修复和植入物可以被认为是"MR安全"关于RF诱导的加热在1.5T的MRI.
- 这些发现支持在患有这些常见牙科材料的患者中安全使用MRI.
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