对于腹部和心脏MR成像的运动缓解技术
Eric M Schrauben1, Gastao Lima da Cruz2, Christopher W Roy3
1Radiology and Nuclear Medicine, Amsterdam UMC, Amsterdam, the Netherlands.
Journal of magnetic resonance imaging : JMRI
|December 28, 2025
概括
心脏和腹部MRI中的运动校正策略可以提高图像质量,减少重复扫描. 对前性和后性技术进行了审查,人工智能集成成为强大的成像的主要趋势.
科学领域:
- 医疗成像医学成像
- 生物医学工程 生物医学工程
- 放射学 放射学是一门学科.
背景情况:
- 磁共振成像 (MRI) 为心脏和腹部器官提供出色的软组织对比.
- 生理运动 (心脏,呼吸,静脉静止) 显著降低MRI质量,导致人造物质,并需要重复扫描.
- 有效的运动校正对于准确的诊断和可复制的定量生物标志物至关重要.
研究的目的:
- 审查当前的心脏和腹部MRI的运动校正策略.
- 讨论前和后运动校正技术的原则和临床应用.
- 突出运动补偿MRI的新兴趋势和未来方向.
主要方法:
- 技术的分类为前性 (实时调整) 和后性 (后重建纠正).
- 其中的例子包括网关,导航器回声,k空间分区,图像注册和基于模型的重建.
- 讨论刚性和非刚性运动的方法,包括弹性注册和运动补偿重建.
主要成果:
- 刚性和非刚性运动都带来了独特的挑战,需要量身定制的校正方法.
- 针对特定应用的解决方案用于心脏 (cine, flow, tagging, mapping) 和腹部 (肝脏,脏,肠道) 成像.
- 运动校正减轻了工件,改善了诊断性能,并提高了图像的可重现性.
结论:
- 运动校正对于强大而高质量的心脏和腹部MRI至关重要.
- 像人工智能集成和先进传感器这样的新兴趋势有望进一步改进.
- 增加工具的可用性将促进常规临床采用,改善患者体验和诊断信心.
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