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Adaptive simultaneous coronary border detection: a method for accurate analysis of small diameter vessels
Conference proceeding

Adaptive simultaneous coronary border detection: a method for accurate analysis of small diameter vessels

Milan Sonka, Gautami K Reddy, Michael D Winniford and Steve M Collins
Proceedings of Computers in Cardiology Conference, pp.109-112
1993
DOI: 10.1109/CIC.1993.378492

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Abstract

Accurate automated identification of coronary borders is difficult to achieve in vessels smaller than 1 mm. In diameter using existing techniques. The authors new approach uses a two-stage automated adaption of edge operator parameters to match the local lumen diameter. In the first stage, approximate lumen diameters are detected using a half-resolution simultaneous coronary border detection algorithm. At each point along the vessel, the approximate diameter is used to select an optimal edge operator for the second full-resolution border detection stage. The method was tested in a set of 72 segments of 9 angiographic phantom vessels with diameters ranging from 0.46 mm to 4.14 mm. Performance of the adaptive method was compared to performance of a conventional coronary border detection, method. Adaptive simultaneous coronary border detection significantly reduced diameter estimation errors in comparison to conventional border detection (p<0.001). Adaptive coronary border detection substantially improves border detection accuracy in small diameter phantom vessels.< >
Radiology Biomedical imaging Cities and towns Detectors Digital audio players Electrical capacitance tomography Image edge detection Imaging phantoms Testing Uncertainty

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