3.0 T未增强的迪克森水脂肪分离全心冠状动脉磁共振血管学:压缩感应灵敏度编码成像与传统的2D灵敏度编码成像
Di Tian1, Yi Sun1, Jia-Jun Guo1
1Department of Radiology, Zhongshan Hospital, Fudan University and Shanghai Institute of Medical Imaging, No. 180 Fenglin Rd, Shanghai, 200032, China.
The international journal of cardiovascular imaging
|July 10, 2023
概括
压缩感应灵敏度编码 (CS-SENSE) 通过减少扫描时间和提高信号与噪声比 (SNR) 和对比与噪声比 (CNR) 来改善未增强的3.0 T全心冠状动脉磁共振血管学 (CMRA). 这种先进的技术提供了与传统的2D SENSE相提并论的诊断准确性.
科学领域:
- 放射学 放射学是指放射学
- 心血管成像 - 心血管成像
- 磁共振成像技术 磁共振成像技术
背景情况:
- 无增强全心冠状动脉磁共振血管造影 (CMRA) 对于诊断冠状动脉疾病 (CAD) 至关重要.
- 优化采集时间,图像质量 (SNR,CNR) 和诊断准确性仍然是CMRA的一个关键挑战.
研究的目的:
- 与传统的2D SENSE相比,使用压缩感应灵敏度编码 (CS-SENSE) 调查3.0 T未增强的迪克森水脂全心CMRA的疗效.
- 评估CS-SENSE对怀疑CAD的患者的获取时间,SNR,CNR和诊断准确性的影响.
主要方法:
- 在实验室中进行了50名疑似患有CAD的患者的幻影研究和体内成像.
- 在CS-SENSE和传统的2D SENSE技术之间比较了获取时间,SNR,CNR和诊断准确性.
- 不增强的迪克森水脂分离全心CMRA在3.0T被用于这两种方法.
主要成果:
- 在体外,与2D SENSE相比,CS-SENSE表现出更高的SNR/CNR和更短的扫描时间的优越性能.
- 在体内,CS-SENSE CMRA显著缩短了平均获取时间 (7.4分 vs 8.3分),并改善了SNR和CNR (P < 0.001).
- 诊断准确性 (灵敏度,特异性,准确性) 在CS-SENSE和2D SENSE之间是可比的 (P > 0.05).
结论:
- 没有增强的CS-SENSE迪克逊水脂全心CMRA在3.0T提供了SNR和CNR的显著改善.
- 与2D SENSE相比,CS-SENSE有效地减少了采集时间,而不会影响图像质量或诊断准确度.
- 这种技术代表了有效和准确的非侵入性冠状动脉评估的宝贵进步.
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