一种新的运动校正算法 (CardioCapture) 对心率与最佳重建阶段相关性的影响
Wei Yin1, Ruimin Xu2, Binghui Zhao1
1Department of Radiology, Changhai Hospital of Shanghai, Naval Medical University, NO.168 Chang-hai Road, Shanghai, 200433, China.
Heliyon
|October 13, 2023
概括
在高心率 (HR) 患者中, CardioCapture 提高了心脏CT血管造影 (CCTA) 图像质量. 使用该算法保持HR低于68bpm可确保最佳图像并降低辐射剂量.
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:
- 冠状动脉疾病的诊断依赖于CCTA.
- 在CCTA中的图像质量通常受患者心率 (HR) 的限制.
- 由于HR的运动工件可以掩盖心脏结构.
研究的目的:
- 评估新型运动校正算法 CardioCapture 在改善 CCTA 图像质量的有效性.
- 评估 CardioCapture 对 HR 与最佳图像重建阶段之间的关系的影响.
- 为了确定与 CardioCapture 结合的宽探测器 CT 是否提高了 CCTA 图像质量.
主要方法:
- 对515个CCTA案件的回顾性分析 (2021年4月至9月).
- 放射科医生在利克特尺度上对图像质量进行评分.
- 在不同HR组 (每分钟5次的间隔) 中比较图像质量, CardioCapture的使用和腹筋重建阶段.
- 使用ROC曲线分析HR和透气相相关性,使用和不使用Cardiocapture.
主要成果:
- 随着HR的增加,图像质量下降; CardioCapture的使用和透气阶段比率下降.
- 在HR<70bpm时,图像卓越度超过了94.90%.
- 在使用 CardioCapture 时,舒张重建的最佳 HR 切断值从每分钟 65 拍升至每分钟 68 拍.
- 随着HR值的提高,CardioCapture的使用率增加,在具有挑战性的病例中显示出它的好处.
结论:
- CardioCapture有效地提高了CCTA图像质量,特别是在高的HRs.
- 使用CardioCapture并保持HR低于68bpm可以优化图像质量.
- 这种方法可以减少辐射剂量,同时确保诊断图像质量.
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