1. In Vivo Evaluation of Tissue Protrusion by Using Optical Coherence Tomography and Coronary Angioscopy Immediately After Stent Implantation
- Author
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Daigo Hiraya, Masaki Ieda, Tomoya Hoshi, Hiroaki Watabe, Shunsuke Sakai, and Akira Sato
- Subjects
Coronary angioscopy ,Fibrous tissue ,030204 cardiovascular system & hematology ,Coronary Angiography ,03 medical and health sciences ,Percutaneous Coronary Intervention ,0302 clinical medicine ,Optical coherence tomography ,In vivo ,Neointima ,medicine ,Humans ,Stent implantation ,030212 general & internal medicine ,Clinical efficacy ,Thrombus ,medicine.diagnostic_test ,Vascular inflammation ,business.industry ,Thrombosis ,General Medicine ,Angioscopy ,medicine.disease ,Coronary Vessels ,Plaque, Atherosclerotic ,C-Reactive Protein ,Stents ,Cardiology and Cardiovascular Medicine ,business ,Nuclear medicine ,Tomography, Optical Coherence - Abstract
BACKGROUND The relationship between the characteristics of tissue protrusion detected by using optical coherence tomography (OCT) and the findings of coronary angioscopy (CAS) immediately after stent implantation were evaluated.Methods and Results:A total of 186 patients (192 stents) underwent OCT before and after stenting and were observed by using CAS immediately after stenting and at the chronic phase. Patients were assigned to irregular protrusion, smooth protrusion, and disrupted fibrous tissue protrusion groups according to OCT findings. Serum high-sensitivity C-reactive protein (hs-CRP) levels were measured before and after stent implantation. The grade of yellow color (YC) and neointimal coverage (NC), and incidence of thrombus in the stented segment were evaluated by using CAS. After stent implantation, maximum YC grade (smooth, 0.64±0.80; disrupted fibrous tissue, 0.50±0.77; irregular, 1.50±1.09; P
- Published
- 2020
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