超快速的深度学习超高分辨率单射T2加权成像,用于在心血管磁共振中强大的水可视化
Taraneh Aziz-Safaie1, Christoph Katemann2, Johannes M Peeters3
1Department of Diagnostic and Interventional Radiology, University Hospital Bonn, Venusberg-Campus 1, 53127, Bonn, Germany; Quantitative Imaging Laboratory Bonn, Venusberg-Campus 1, 53127, Bonn, Germany.
概括
深度学习 (DL) 超高分辨率重建的单射T2-STIR成像显著减少心血管MRI扫描时间,并改善图像质量以检测水. 这种超快的技术提高了诊断确定性和图像质量,特别是在具有挑战性的患者病例中.
科学领域:
- 心血管磁共振 (CMR) 图像成像
- 医疗人工智能 医疗人工智能
- 放射学和成像科学 放射学和成像科学
背景情况:
- 在CMR中标准的喘息 (BH) T2-STIR序列是耗时的,易受伪造的.
- 深度学习 (DL) 为医学成像中的图像重建和加速提供了潜力.
- 评估心肌胀对于诊断各种心脏疾病至关重要.
研究的目的:
- 为了比较DL超分辨率重建BH和自由呼吸 (FB) 单射 (SSH) T2-STIR与CMR中的标准BH T2-STIR的诊断质量.
- 评估DL-SSH T2-STIR对扫描时间,图像质量和水检测的影响.
- 用DL-SSH T2-STIR来评估的诊断确定性和评价者间的协议.
主要方法:
- 一项前性研究涉及81名参与者,他们在1.5T时接受标准心肌病CMR.
- 获取BH和FB SSH T2-STIR序列,然后进行DL超分辨率重建.
- 通过使用利克特尺度和参考标准 (T2映射) 的两个读者对诊断质量,文物负担,对比度,清晰度和水检测的评估.
主要成果:
- 与标准的T2-STIR相比,DL-SSH T2-STIR显著减少了63% (BH) 和86% (FB) 的扫描时间.
- DL-SSH T2-STIR显示出优越的图像对比度,清晰度和较低的文物负担,特别是在非合作或心律失常的患者中.
- edem 检测率与参考标准相似,与标准序列相比,DL-SSH T2-STIR 观察到优越的 edem 可见性和更高的诊断确定性.
结论:
- 在常规的临床CMR中,DL-SSH成像使得超快的T2-STIR获取成为可能.
- 这种技术提供了强大的胀评估,改善了图像质量和诊断确定性.
- DL-SSH T2-STIR是有效和高效的心血管成像的一个有希望的进步.
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