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Reduction of Visual Disruptions in Coronary Cine-Angiography for Better Diagnostic Viewing

Authors:

K. A. S. H. Kulathilake ,

Rajarata University of Sri Lanka, LK
About K. A. S. H.
Senior Lecturer, Department of Physical Sciences
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W. S. Wajiramali,

Rajarata University of Sri Lanka, LK
About W. S.
Department of Physical Sicences
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D. W. J. Chathurika,

Rajarata University of Sri Lanka, LK
About D. W. J.
Department of Physical Sicences
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D. A. N. Gunasekara,

Rajarata University of Sri Lanka, LK
About D. A. N.
Department of Physical Sicences
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I. A. M. S. Ranasinghe,

Rajarata University of Sri Lanka, LK
About I. A. M. S.
Department of Physical Sicences
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R. R. C. P. Rathnayake

Rajarata University of Sri Lanka, LK
About R. R. C. P.
Department of Physical Sicences
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Abstract

Coronary angiography is an invasive medical imaging modality which is widely used as a preliminary diagnostic method in Interventional Cardiology for detection of luminal obstructions in Coronary Arteries (CA). Noise, non-uniform illumination, low contrast and epicardial motion are considered as the reported visual degradations which are automatically recorded in Coronary angiography. Further, those factors form certain unpredictable obstructions during the angiography based disease diagnosis. In this study, it has been proposed a frequency filtering based frame enhancement method for surmounting those problems and improving the visual quality of the angiograms. The proposed method is based on homomorphic butter worth high pass filter and empirically validated contrast stretching technique. Further, the optical flow based frame stabilization method has been applied in the later stages of the proposed method for correcting the epicardial deformations. The results of the study clearly emphasized the visual improvement obtained from this method. The enhanced angiography frames produced in this study can be recommended for reliable stenosis detection. Further, these enhanced frames can be further used for quantitative stenosis assessment.
How to Cite: Kulathilake, K.A.S.H., Wajiramali, W.S., Chathurika, D.W.J., Gunasekara, D.A.N., Ranasinghe, I.A.M.S. and Rathnayake, R.R.C.P., 2018. Reduction of Visual Disruptions in Coronary Cine-Angiography for Better Diagnostic Viewing. International Journal on Advances in ICT for Emerging Regions (ICTer), 11(1), pp.1–8. DOI: http://doi.org/10.4038/icter.v11i1.7189
Published on 09 Aug 2018.
Peer Reviewed

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