横截面的自动定位对应于计算机断层扫描体积的标准食道横断心声图视图
Gakuto Aoyama1, Zhexin Zhou2, Hong Yang2
1Research and Development Center, Canon Medical Systems Corporation, 1385 Shimoishigami, Otawara-Shi, Tochigi, 324-8550, Japan.
Biomedical physics & engineering express
|March 3, 2026
概括
这项研究引入了一种自动化方法,用于识别计算机断层扫描 (CT) 截面,用于跨食道心声扫描 (TEE) 视图. 这种技术显著减少了TEE引导治疗中的规划时间和用户间的变化.
科学领域:
- 医疗成像医学成像
- 心血管成像 - 心血管成像
- 图像分析 图像分析
背景情况:
- 经食道心声学 (TEE) 引导的治疗需要手术前的计算机断层扫描 (CT) 截面.
- 手动识别相关的CT截面是耗时的,容易变化.
研究的目的:
- 开发和验证一种完全自动的方法,用于定位符合标准TEE视图的CT截面.
- 提高TEE指导程序处理规划的效率和一致性.
主要方法:
- 开发了一种利用心脏和食道细分模型,平面定位和解剖学地标检测的新方法.
- 该方法在110个CT卷上进行了评估,使用与手册注释的五倍交叉验证.
- 性能与使用顶部/中间轴心心段的基线方法进行了比较.
主要成果:
- 与基线相比,自动化方法实现了明显较低的旋转,探头位置和地标错误.
- 平均误差为12.52° (旋转),13.90mm (探头位置) 和3.95mm (地标).
- 平均处理时间为41.34秒,证明了高效率.
结论:
- 开发的方法自动为TEE视图提供准确的CT截面.
- 这使得TEE引导干预的治疗规划更快,更轻松,更一致.
- 该系统减少了用户之间的变化,提高了治疗可靠性.
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