通过心血管磁共振成像在心脏瘤中的多参数映射
Pengfei Yue1, Ziqian Xu2, Ke Wan3
1Division of Abdominal Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
概括
定量心脏MRI绘制显示了初级恶性心脏瘤中心肌原生T1值的升高,将其与良性瘤区分开来. 这一发现为诊断心脏恶性瘤提供了潜在的新成像标志物.
科学领域:
- 心血管成像 - 心血管成像
- 放射学 放射学是一门学科.
- 在瘤学瘤学.
背景情况:
- 使用参数映射技术对心脏瘤和心肌的定量测量是有限的.
- 参数映射为组织特征提供了洞察力,有助于诊断心脏异常.
研究的目的:
- 探索心脏瘤和左心室 (LV) 心肌的定量特征,使用原生T1,T2和细胞外体积 (ECV) 映射.
- 评估这些映射技术在区分良性和恶性心脏瘤的诊断性能.
主要方法:
- 预期招募80名疑似心脏瘤的患者接受心血管磁共振 (CMR).
- 排除具有伪瘤,转移,原发性心脏病或先前放射治疗/化疗的患者.
- 在瘤和LV心肌中测量多参数映射值 (原生T1,T2,ECV),并进行包括ROC曲线在内的统计分析.
主要成果:
- 患有原发性恶性心脏瘤的患者与良性瘤 (1260 ms) 和对照组 (1206 ms) 相比,心肌原生T1值 (1360 ms) 的平均值显著更高.
- 与良性瘤 (30.0%) 和对照组 (27.3%) 相比,在恶性瘤 (34.6%) 中观察到显著更高的平均ECV.
- 心肌原生T1值显示了最大的诊断疗效 (AUC:0.919),用于区分恶性与良性心脏瘤.
结论:
- 心脏瘤的原生T1和T2值表现出高度的异质性.
- 在原发性恶性心脏瘤中心肌原生T1值升高可能作为一种新的成像生物标志物.
- 参数映射,特别是原生T1,显示了改善心脏瘤诊断的希望.
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