超声图像中胎儿股骨的自动测量  

Automatic measurement of fetal femur length in ultrasound image

作　　者：罗娜[1] 李璟[1] 周成礼[2] 郑介志 倪东[1] Luo Na Li Jing Zhou Chengli Zheng Jiezhi Ni Dong(） National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University, Shenzhen 518060, Guangdong Province, P. R. China ） Department of Ultrasound, Shenzhen Maternity ＆ Child Healthcare Hospital, Shenzhen 518000, Guangdong Province, P. R. China)

机构地区：[1]医学超声关键技术国家地方联合工程实验室广东省生物医学信息监测与超声成像重点实验室深圳大学生物医学工程学院,广东深圳518060 [2]深圳市妇幼保健院超声科,广东深圳518000

出　　处：《深圳大学学报（理工版）》2017年第4期421-427,共7页Journal of Shenzhen University(Science and Engineering)

基　　金：国家自然科学基金资助项目(6157010571)~~

摘　　要：提出一种全自动测量胎儿股骨长的方法,利用Frangi滤波器结合灰度信息分割出超声图像中股骨的候选区域,根据候选区域位置、形状信息定位出股骨区域,利用股骨区域的边缘和拟合出的骨架化曲线定位到股骨的端点,并计算得到股骨长.与医生手动测量结果对比,70幅股骨图像的平均测量误差为1.18 mm,表明该方法可准确测量股骨长.We propose a novel automatic method to measure the fetal femur length. First,the candidate regions containing the femur are detected in the ultrasound image using Frangi filter and gray information. Then,the femur region is localized based on both the shape and position of the candidate regions. Finally,the femur end points are determined by detecting the edges of the femur region and fitting the femur skeleton. The femur length is measured.Comparing with the results measured by doctors,the average measurement error of 70 ultrasound femur images is 1. 18 mm,which indicates that our method can accurately measure the femur length.

关 键 词：生物医学工程学 超声图像 图像处理 股骨长测量 Frangi滤波器 产前诊断 

分 类 号：R318[医药卫生—生物医学工程] TP751[医药卫生—基础医学]