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IntraCross:用于血管内序列注册的交叉模式图表匹配

Kit Mills Bransby¹, Xingwei He², Christos V Bourantas³

¹School of Electronic Engineering and Computer Science, Queen Mary University of London, London, UK; Digital Environment Research Institute, Queen Mary University of London, London, UK.

Computers in biology and medicine

|February 25, 2026

概括

IntraCross精确地对准了血管内超声波 (IVUS) 和光学连贯性断层扫描 (OCT) 图像,以更好地评估动脉样硬化. 这种新的图形匹配框架改善了斑块表征,有助于预测急性冠状动脉事件.

科学领域:

心血管成像 - 心血管成像
医学图像分析医学图像分析
生物医学工程生物医学工程

背景情况:

血管内超声 (IVUS) 和光学连贯性断层扫描 (OCT) 是体内动脉样硬化评估的关键成像方法.
结合IVUS和OCT可以提高脆弱斑块的特征,这对于预测急性冠状动脉事件至关重要.
由于敏感度和获取协议的不同,调整IVUS和OCT数据的挑战阻碍了临床应用.

研究的目的:

开发一个新的框架,IntraCross,用于对IVUS和OCT成像序列的强大和准确的注册.
克服现有方法的局限性,例如框架级对应和多步骤流程,导致错误和不稳定.
为了实现同时进行时间和轮值注册,与临床工作流程保持一致.

主要方法:

建议IntraCross,一个图形匹配框架,利用部分地标赋值进行灵活,非刚性注册.
将 2D 部分匹配技术扩展到 3D 序列,并纳入调整的时间先验.
开发了一种方法,可以同时记录IVUS和OCT数据的时间和轮值.

主要成果:

在22名患者的77个血管中,IntraCross与专家评估的高度一致 (威廉姆斯指数=1.1).
该方法在圆周记录准确性方面明显优于现有的方法.
即使在视觉信息有限的地区,也可以实现稳定和准确的对齐.

结论:

IntraCross 在记录多模式血管内成像数据方面取得了重大进展.
该框架能够同时执行时间和旋转对齐的能力提高了动脉样硬化评估的临床实用性.
这种方法增强了易受损伤的斑块的特征,可能改善心血管疾病患者的结果.

关键词:

共同注册是指共同注册的情况.冠状动脉疾病是一种冠状动脉疾病.图形匹配的匹配方法血管内成像血管内成像多种方式的多样性.

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