Abstract

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Title:: Measurement of coronary artery diameter on DSA image based on Hessian matrix

Author(s):: WANG Li1; MENG Qingmin2; GUO Yongxin3; JIAO Qing3; 1. College of Medical Information Engineering, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai’an 271016, China; 2. Department of Interventional Radiology, Tai’an City Central Hospital, Tai’an 271000, China; 3. Department of Radiology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai’an 271016, China

Keywords:: ; Keywords: digital subtraction angiography; coronary artery; Hessian matrix; image processing; vessel skeleton; vessel diameter

Abstract:: Abstract: Objective To obtain the skeleton and centerline of coronary artery by the analysis and processing on digital subtraction angiography (DSA) images, so as to realize the measurement of coronary artery diameter. Methods Image processing was performed with the use of MATLAB language. After the smoothing and equalization on DSA images, the skeleton and centerline of coronary artery were obtained. Taking the eigenvector of Hessian matrix as the reference direction, the diameter of coronary artery was calculated by the intersection of the straight line vertical to blood vessels and the coronary artery skeleton. Results The automatic extraction of the skeleton and centerline of coronary artery and the automatic measurement of coronary artery diameter were realized. Conclusion For randomly selected DSA images, the proposed method can be used to obtain not only ideal coronary artery centerline and skeleton, but also precise coronary artery diameter, thereby providing operating personnel with abundant information, with certain application value.