HIFU治疗子宫肌瘤中MRI与超声图像的融合研究  

Research of image fusion between MRI images and ultrasound images during HIFU therapy

作　　者：单鑫[1] 文银刚[2] 卢继珍 林涛[1,2] 

机构地区：[1]重庆医科大学,生物医学工程学院,省部共建超声医学工程国家重点实验室培育基地,超声医学工程重庆市重点实验室,重庆400016 [2]超声医疗国家工程研究中心,重庆401121 [3]重庆青年职业技术学院,重庆400712

出　　处：《计算机工程与应用》2015年第20期135-139,共5页Computer Engineering and Applications

基　　金：国家重点基础研究发展规划(973)(No.2011CB707900);重大仪器专项(No.81127901);国家自然科学基金面上项目(No.11274404);国家重大科学仪器设备开发专项(No.2013YQ03062906)

摘　　要：超声图像是高强度聚焦超声(HIFU)消融肿瘤中应用最多的影像学监控技术,但是超声图像质量差,图像伪影明显,通常还需要借助MRI图像,基于此,提出了一种新的影像监控方案,利用从MRI图像上分割出的肿瘤边界与实时超声图像融合,共同对HIFU治疗进行监控与导航。实验结果表明,基于MRI图像可以实时获取到任意切面平滑、准确的子宫肌瘤轮廓线,并融合显示于实时超声图像上,清晰的轮廓线既不影响超声的实时监控又弥补了某些切面的超声图像中肿瘤边界不完整的缺陷,为HIFU的精确治疗打下基础。Ultrasound image is the most commonly used imaging monitoring technology during HIFU therapy, but the poor quality of ultrasound images, image artifacts, usually need to use MRI images. Based on this, it proposes a new image monitoring solution. It extracts contours of hysteromyoma based on MRI images and fuses with real-time ultrasound images collectively to monitor HIFU treatment and navigation. The experimental results show that according to MRI images, it can have access to any real-time section smooth, precise contours of hysteromyoma and fuses with real-time ultrasound image. Clear contour is a supplement to some incomplete tumor boundary section in ultrasound images without affecting real-time monitoring of ultrasound. It is the foundation for accurate HIFU treatment.

关 键 词：高强度聚焦超声(HIFU) 子宫肌瘤 三维轮廓 分段光滑表面重构 融合 

分 类 号：R318.6[医药卫生—生物医学工程]