Chronic total occlusion is the most severe type of coronary heart disease,featuring many difficulties in performing interventional techniques and postoperative complications.Optical coherence tomography is characterized by high resolution ratio and good correlation.The application of optical coherence tomography in clinical settings can evaluate chronic total occlusion of blood vessels before interventional therapy,guide guidewires getting through lesions during operation,and evaluate complications such as bad limbic dissection and incomplete stent apposition after operation,providing more clinical information for stent apposition.Now a brief introduction was presented on the application of optical coherence tomography to interventional treatment of chronic total occlusion of coronary heart disease (CHD).
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