Coronary calcification diagnosis system based on helical CT images

Yuji Ukai; Noboru Niki; Hitoshi Satoh; Sigeru Watanabe; Hironobu Ohmatsu; Kenji Eguchi; Noriyuki Moriyama

doi:10.1117/12.310880

24 June 1998 Coronary calcification diagnosis system based on helical CT images

Yuji Ukai, Noboru Niki, Hitoshi Satoh, Sigeru Watanabe, Hironobu Ohmatsu, Kenji Eguchi, Noriyuki Moriyama

Proceedings Volume 3338, Medical Imaging 1998: Image Processing; (1998) https://doi.org/10.1117/12.310880
Event: Medical Imaging '98, 1998, San Diego, CA, United States

Abstract

In this paper, we describe a computer assisted diagnosis algorithm of coronary calcifications based on helical X-ray CT images which are used at the mass screening process for lung cancer diagnosis. Our diagnostic algorithm consists of four processes: Firstly, we choose the heart slices from the CT images which was taken from the mass screening, we classify the heart slices to three section. Second, we extract the heart region on each slice by the shape of the lung area and the body of vertebra. Third, the candidate regions of the coronary calcifications are detected by the difference calculus and thresholding process. Finally, to increase the effectiveness of the diagnostic processing, we cancel the artifacts included in the candidate regions by the diagnostic rules defined by us. We show here the result of our algorithm which is applied to helical CT images of 402 patients analyzed for lung cancer screening.

Citation Download Citation

Yuji Ukai, Noboru Niki, Hitoshi Satoh, Sigeru Watanabe, Hironobu Ohmatsu, Kenji Eguchi, and Noriyuki Moriyama "Coronary calcification diagnosis system based on helical CT images", Proc. SPIE 3338, Medical Imaging 1998: Image Processing, (24 June 1998); https://doi.org/10.1117/12.310880

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