超声图像中胎儿股骨的自动测量

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

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

Automatic measurement of fetal femur length in ultrasound image
Luo Na1, Li Jing1, Zhou Chengli2, Zheng Jiezhi1, and Ni Dong1

Luo Na1, Li Jing1, Zhou Chengli2, Zheng Jiezhi1, and Ni Dong11)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.China2)Department of Ultrasound, Shenzhen Maternity & Child Healthcare Hospital, Shenzhen 518000, Guangdong Province, P.R.China

biomedical engineering; ultrasound images; image processing; femur length measurement; Frangi filter; prenatal diagnosis

DOI: 10.3724/SP.J.1249.2017.04421

备注

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.

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