使用冠状动脉计算机断层扫描结合光学连贯性断层扫描进行评估
Kazumasa Kurogi1, Masanobu Ishii2, Sou Ikebe3
1Department of Cardiovascular Medicine, Miyazaki Prefectural Nobeoka Hospital, Nobeoka, Japan.
The international journal of cardiovascular imaging
|June 8, 2023
概括
光学连贯断层扫描 (OCT) 低估了冠状动脉的严重程度. 计算机断层扫描 (CT) 图像提供了对化严重程度和形态的更全面的评估,补充了OCT在穿皮冠状动脉干预计划中的作用.
科学领域:
- 心血管成像 - 心血管成像
- 干预心脏病学 干预心脏病学
- 医学成像分析 医学成像分析
背景情况:
- 光学连贯断层扫描 (OCT) 对于评估冠状动脉厚度至关重要,指导支架扩张.
- 由于OCT的透深度有限,导致人们低估了冠状动脉的严重程度.
- 准确的化评估对于成功的穿皮冠状动脉干预 (PCI) 是至关重要的.
研究的目的:
- 评估和比较冠状动脉计算机断层扫描 (CT) 和OCT成像,以评估冠状动脉化.
- 要确定与CT相比,OCT在多大程度上低估了的严重性.
- 探索CT和OCT在程序前PCI规划中的互补作用.
主要方法:
- 同时记录和分析来自25个左前下垂动脉的1811个对联横截面CT和OCT图像.
- 在两种成像方式中量化化存在,角度,厚度和密度.
- 在OCT检测到化的图像与未检测到化的图像之间的特性比较.
主要成果:
- 在14.1%的相应CT图像中,由于透极限,OCT无法检测出化.
- 在OCT可检测图像中,与CT相比,最大厚度在49.1%的时间被遗漏.
- 在CT检测不到的切片中,CT显示的角度,厚度和密度显著增加,OCT无法检测到.
- 在CT和OCT之间发现了角度的良好相关性 (R=0.82).
- OCT厚与CT最大密度 (R=0.73) 相比,CT厚度 (R=0.61) 与CT最大密度 (R=0.73) 有更好的相关性.
结论:
- 横截面CT成像提供了冠状动脉形态和严重程度的优质术前评估.
- CT可以有效地补充CT通过提供信息,因为CT的透限制错过了的严重性.
- 整合CT和OCT数据可以提高PCI战略和结果.
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