死亡后人类胎儿手腕关节的超高场MRI:初步经验
Sabine H Josemans1, Anne-Sophie van der Post2,3, Gustav J Strijkers4
1Department of Radiology and Nuclear Medicine, Amsterdam UMC Location University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
European radiology experimental
|June 4, 2023
概括
死后超高场MRI (UHF-MRI) 是可行的研究胎儿肌肉骨解剖学. 在4%的甲 (PFA) 中短期存储或在0.2%的PFA中长期存储,使用Lugol的溶液增强对比度,可以实现最佳的成像.
科学领域:
- 医疗成像医学成像
- 人体解剖学 解剖学 解剖学
- 生物医学工程 生物医学工程
背景情况:
- 评估死后超高场磁共振成像 (UHF-MRI) 对胎儿肌肉骨解剖学的可行性.
- 研究甲 (甲甲,PFA) 和 (Lugol的溶液) 对组织保存和成像质量的影响.
研究的目的:
- 评估UHF-MRI在可视化胎儿肌肉骨结构方面的有效性.
- 确定最佳的组织固定和染色协议,用于增强胎儿样本的超高频MRI.
主要方法:
- 分析了7个人类胎儿的上肢 (19-24周怀孕).
- 标本经历了各种储存 (0.2-4%PFA) 和染色 (Lugol的溶液) 的协议.
- 用7.0 T UHF-MRI对手腕关节进行成像,通过信号强度比量化软组织对比度.
主要成果:
- 超高频MRI在胎儿肌肉骨组织中显示出出色的软组织对比.
- 在4%的PFA中增加存储降低了对比率,改变了组织信号强度.
- 储存在0.2%的PFA中对对比度的影响最小,而Lugol的解决方案增加了对比度.
结论:
- 超高频MRI是一种可行的技术,用于成像胎儿肌肉骨解剖学.
- 在4%的PFA中短期固定或在0.2%的PFA中长期固定时获得最佳结果.
- 卢戈尔的解决方案与UHF-MRI兼容,可实现组合成像模式.
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