实时连续图像指导用于基于3D/2D注册和呼吸补偿的内镜逆行胆血管细胞造影
Da-Ya Zhang1, Shuo Yang2, Hai-Xiao Geng2
1Department of Gastroenterology, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China.
World journal of gastroenterology
|June 22, 2023
概括
这项研究表明实时连续图像引导的内镜逆行胆血管细胞造影 (ERCP) 是可行的. 这种方法有助于导航,减少辐射,并提高ERCP程序期间的安全性.
科学领域:
- 医疗成像医学成像
- 胃肠病学 胃肠病学
- 手术导航 手术导航
背景情况:
- 三维 (3D) 图像增强了胆管解剖识别和ERCP期间的手术内指导,提高了安全性,减少了手术时间和辐射.
- 目前的3D胆道成像缺乏与手术内成像的实时融合,因呼吸运动而阻碍导航.
- 该研究调查了实时连续图像引导ERCP的可行性,以解决这一局限性.
研究的目的:
- 探索实时连续图像引导ERCP的可行性.
- 开发和测试ERCP使用3D/2D图像注册和融合的导航系统.
主要方法:
- 使用3D打印模型模拟ERCP环境的胆汁幻影实验.
- 18名胆病患者的手术前3DCT成像被记录并与手术内2D光镜实时融合.
- 据估计,呼吸运动可以提高3D/2D图像注册和融合的准确性.
主要成果:
- 胆道幻影实验证明了高准确度,注册误差为0.46 mm ± 0.13 mm,跟踪误差为0.64 mm ± 0.24 mm.
- 在患者研究中,实时3D/2D注册通过准确地将手术前的3D胆道图像转换为手术内光镜序列,实现了88%的平均融合率.
- 该系统有效地补偿了呼吸运动,从而实现了连续的图像引导.
结论:
- 实时连续图像引导的ERCP是一种可行且有效的方法,用于协助操作人员在程序中进行操作.
- 这种技术有可能减少对X射线和对比剂的依赖,从而提高患者的安全.
- 开发的导航系统有望提高ERCP的精度和效率.
相关概念视频
Endoscopic Procedures V: ERCP
436
Endoscopic Retrograde Cholangiopancreatography (ERCP) is a diagnostic procedure that combines endoscopy and fluoroscopy to diagnose and treat conditions related to the bile ducts, pancreatic ducts, and gallbladder. This procedure is beneficial for identifying and addressing blockages, gallstones, strictures, and tumors within the biliary or pancreatic systems. ERCP is both diagnostic and therapeutic, offering the ability to visualize and treat identified problems in one session.
Patient...
Patient...
436
Endoscopic Procedures III: Video Capsule Endoscopy
204
Capsule endoscopy, or wireless or video capsule endoscopy, is a diagnostic procedure for examining the entire gastrointestinal tract. Patients swallow a capsule about the size of a vitamin tablet. The capsule is equipped with a transmitter, a battery, an LED light source, and a color video camera to capture images throughout the gastrointestinal tract. This procedure is particularly useful for diagnosing conditions such as Crohn's disease, ulcerative colitis, tumors, polyps, ulcers,...
204


