[用于检测心下梗塞的后对比T1地图的新应用]
Takumi Okubo1, Kohei Kawasaki1, Rena Harada1
1Department of Radiology, Chiba Cerebral and Cardiovascular Center.
Nihon Hoshasen Gijutsu Gakkai zasshi
|November 15, 2023
概括
在心磁共振成像 (CMR) 中进行后对比T1映射,通过增强受损心肌和血液池之间的对比,与晚期加多增强 (LGE) 相比,可以改善心下心脏梗塞的可视化.
科学领域:
- 心血管成像 - 心血管成像
- 医学物理 医学物理
- 放射学 放射学是一门学科.
背景情况:
- 在心磁共振 (CMR) 中的晚期加多增强 (LGE) 可以在区分心下内脏病变与左心室 (LV) 血液池方面带来挑战.
- 在LGE图像中模糊的对比度可以阻碍心肌梗塞的准确诊断.
研究的目的:
- 评估对比后T1映射用于检测心下梗塞的有用性.
- 为了比较心肌梗塞和LGE的LV血池之间的图像对比,与对比后T1图像相比.
主要方法:
- 通过对比增强的CMR进行心肌梗塞评估的48名患者进行了审查.
- 在LGE和后对比T1-map图像上测量了心肌梗塞和LV血池之间的对比比率 (CR).
- 进行了两种成像技术之间的CR值的统计比较.
主要成果:
- 与LGE图像 (-0.04±0.11) (P<0.05) 相比,对比后T1-地图图像显示出明显更高的对比比率 (0.02±0.04).
- 后对比T1映射清楚地划出了心肌梗塞和LV血液池之间的界限.
结论:
- 与LGE相比,后对比T1映射提供了优越的对比,用于评估心下梗塞.
- 将对比后T1映射纳入CMR解释可能会提高心下梗塞的诊断准确性.
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