在运动员中评估心肌微血管功能,使用休息心磁共振第一次传输输输
Qian Liu1, Cao Li1, Wan-Yin Qi1
1Department of Radiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China.
Journal of magnetic resonance imaging : JMRI
|January 16, 2026
概括
与对照组相比,运动员表现出心肌输液减少,特别是心脏重塑 (CR) 和心肌纤维化 (MF) 的运动员. 这表明输血量下降与运动员心脏病之间存在联系.
科学领域:
- 心脏病学 心脏病学
- 运动医学 运动医学
- 医疗成像医学成像
背景情况:
- 心肌微血管功能受损可能导致心脏重塑 (CR) 和心肌纤维化 (MF),增加运动员心血管风险.
- 早期评估心肌微循环输液对于运动员护理至关重要.
研究的目的:
- 为了评估运动员的心肌微血管功能,使用静止心脏MRI第一通输液.
- 为了评估运动员和对照人群之间的输液参数差异.
主要方法:
- 一项涉及186名运动员和43名对照者的前性研究,使用3.0T心脏MRI与特定序列.
- 心脏重塑 (CR) 通过上限指标定义;心肌纤维化 (MF) 通过视觉评估.
- 分析左心室休息的第一通 perfusion 参数,并开发 CR/MF 的预测模型.
主要成果:
- 与对照组相比,运动员的上升斜率和最大信号强度 (MaxSI) 显著降低,最大信号强度 (TTM) 的时间更长.
- 患有CR和/或MF的男性运动员进一步减少了上坡和MaxSI,并增加了TTM.
- perfusion 参数与 T2 映射,QRS 和纠正的 QT 间隔负相关;预测模型的 AUC 为 0.837.
结论:
- 与对照人群相比,运动员表现出心肌静止 perfusion 的减少.
- 这种减少在心脏重塑 (CR) 和/或心肌纤维化 (MF) 的运动员中更为明显.
- 研究结果表明,运动员心肌输液下降和CR/MF之间存在关联.
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