摘要
该文提出了一种基于菲涅尔区域的乳腺三维超声成像技术,可实现病变组织早期的定性诊断与定量监测。主要研究内容包括:采用透射方式,以慢度作为反演参量,将正演与反演的透射时间差作为迭代判据,基于菲涅尔区域法实现乳腺组织的二维反演成像;根据柱面传感阵列的分布特点,将乳腺三维超声成像问题转为二维成像问题,进而实现乳腺三维超声成像;计算三维病变成像声速及尺寸误差,并分析菲涅尔区域法的成像分辨率以及入射频率对成像分辨率的影响。该文研究结果证明基于柱面传感阵列的菲涅尔区域法可实现乳腺三维超声成像并有效实现病变早期监测与诊断。
In this paper,a three-dimensional ultrasound imaging technique based on Fresnel region of breast is proposed to realize early qualitative diagnosis and quantitative monitoring of pathological tissues.The main research contents include:using the transmission mode,taking the slowness as the inversion parameter,and taking the transmission time difference between forward and inversion as the iterative criterion,the Fresnel region method is used to realize the two-dimensional inversion imaging of breast tissue.According to the distribution characteristics of cylindrical sensor array,the three-dimensional ultrasound imaging problem of mammary gland was transformed into a two-dimension imaging problem,and then the three-dimensional ultrasound imaging of mammary gland was realized.The sound velocity and size error of three-dimensional lesion imaging are calculated,and the imaging resolution of Fresnel region method and the influence of incident frequency on the imaging resolution are analyzed.The results of this study demonstrate that Fresnel region method based on cylindrical sensor array can realize three-dimensional breast ultrasound imaging and effectively realize early detection and diagnosis of breast lesions.
作者
那雪璐
李海洋
张文栋
NA Xuelu;LI Haiyang;ZHANG Wendong(The Key Laboratory of Information and Detection Processing of Shanxi Province,North University of China,Taiyuan 030051,China;State Key Laboratory of Dynamic Testing Technology,North University of China,Taiyuan 030051,China)
出处
《应用声学》
CSCD
北大核心
2022年第5期710-720,共11页
Journal of Applied Acoustics
基金
国家自然科学基金国家重大科研仪器研制项目(61927807)
生物医学成像与影像大数据山西省重点实验室开放研究基金资助项目(KF2020-04)
国家自然科学基金项目(11604304,11874386)
先进制造技术山西省重点实验室开放基金项目(XJZZ202006)
无损检测技术教育部重点实验室开放基金项目(EW202180221)
中国特检院青年科技基金项目(2018青年08)。
关键词
柱面传感阵列
菲涅尔区域
乳腺三维成像
超声成像
Cylindrical sensor array
Fresnel region
Breast three-dimensional imaging
Ultrasonic imaging
