Journal of Northeastern University Natural Science ›› 2020, Vol. 41 ›› Issue (11): 1570-1576.DOI: 10.12068/j.issn.1005-3026.2020.11.008

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Fully Automatic Location Method of Ostial Layers and Points of Coronary Arteries for Computed Tomographic Angiographic Images

LUO Yang1,2, QI Lin1, XU Li-sheng1,3   

  1. 1. School of Medicine & Biological Information Engineering, Northeastern University, Shenyang 110169, China; 2. School of Advanced Vocational Technology, Anshan Normal University, Anshan 114056, China; 3. Key Laboratory of Medical Image Computing, Ministry of Education, Northeastern University, Shenyang 110169, China.
  • Received:2020-01-20 Revised:2020-01-20 Online:2020-11-15 Published:2020-11-16
  • Contact: XU Li-sheng
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Abstract: Firstly, the ostial layer of the left coronary arteries by change of roundness is determined on the basis of multi-condition region growth and the anatomic structure, and the ostial point of the left coronary arteries within the specified range is determined.Secondly, the ascending aorta center and the ostial range of the right coronary arteries are calculated, and the peaks and valleys of the distance curve combined with the features of the anatomic structure are utilized to determine ostial layer and point of the right coronary arteries. The parameters of the proposed method are statistically verified. Finally, 57 subjects are tested. The accuracy of locating the ostial layers of left and right coronary arteries are 98.2% and 96.5%, respectively. The average distances between located ostial points of left and right coronary arteries and the ground truth are (1.22± 0.37)mm and (1.76± 0.49)mm, respectively. The experiments demonstrate the validity of the proposed method.

Key words: ostia of left coronary arteries, ostia of right coronary arteries, ascending aorta, region growth, distance curve

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