1. Dong Hoon Choi

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    1. Mentioned In 65 Articles

    2. Impact of late stent malapposition after drug-eluting stent implantation on long-term clinical outcomes

      Explore atherosclerosis-journal.com Cardiology
      Impact of late stent malapposition after drug-eluting stent implantation on long-term clinical outcomes
      Background and aims The impact of late drug-eluting stent (DES) malapposition detected by optical coherence tomography (OCT) on long-term clinical outcomes has not been clearly established. We evaluated long-term clinical outcomes of late stent malapposition (LSM) detected by OCT in a qualified study population. Methods A total of 428 patients were selected from previous randomized OCT studies that evaluated the degree of strut coverage of different DESs at a 312-month ...
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      Mentions: Yonsei University Jung-Sun Kim Dong Hoon Choi

    3. Severe acute stent malapposition follow-up: 3-month and 12-month serial quantitative analyses by optical coherence tomography

      Explore ScienceDirect Cardiology
      Severe acute stent malapposition follow-up: 3-month and 12-month serial quantitative analyses by optical coherence tomography
      Background Optical coherence tomography (OCT) was used to assess serial changes in severe acute stent malapposition (ASM) after drug-eluting stent (DES) implantation. Methods The maximal depth and axial lengths of ASM after DES implantation were serially quantified at percutaneous coronary intervention (PCI), and at 3 and 12-month follow-up, for 100 lesions in 96 patients. Severe ASM was defined as a maximal malapposed depth 400 m or maximal malapposed axial length ...
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      Mentions: Yonsei University Jung-Sun Kim Dong Hoon Choi

    4. Severe acute stent malapposition follow-up: 3-month and 12-month serial quantitative analyses by optical coherence tomography

      Explore International Journal of Cardiology Cardiology
      Severe acute stent malapposition follow-up: 3-month and 12-month serial quantitative analyses by optical coherence tomography
      Background Optical coherence tomography (OCT) was used to assess serial changes in severe acute stent malapposition (ASM) after drug-eluting stent (DES) implantation. Methods The maximal depth and axial lengths of ASM after DES implantation were serially quantified at percutaneous coronary intervention (PCI), and at 3 and 12-month follow-up, for 100 lesions in 96 patients. Severe ASM was defined as a maximal malapposed depth 400 m or maximal malapposed axial length ...
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      Mentions: Yonsei University Jung-Sun Kim Dong Hoon Choi

    5. Long‐Term Clinical Outcomes of Late Stent Malapposition Detected by Optical Coherence Tomography After Drug‐Eluting Stent Implantation

      Explore Home | AHA/ASA Journals Cardiology
      Long‐Term Clinical Outcomes of Late Stent Malapposition Detected by Optical Coherence Tomography After Drug‐Eluting Stent Implantation
      Background The relationship between late stent malapposition (LSM) and adverse cardiovascular events is controversial. Studies are needed to evaluate long‐term (5 years) clinical outcomes of LSM detected by optical coherence tomography (OCT) after drug‐eluting stent implantation. Methods and Results We investigated long‐term clinical outcomes of OCT‐detected LSM in 351 patients who received drug‐eluting stents and were examined by both poststent and follow‐up OCT (17560 ...
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      Mentions: Yonsei University Dong Hoon Choi Yangsoo Jang

    6. Early Follow-Up Optical Coherence Tomographic Findings of Significant Drug-Eluting Stent Malapposition

      Explore Home | AHA/ASA Journals Cardiology
      Early Follow-Up Optical Coherence Tomographic Findings of Significant Drug-Eluting Stent Malapposition
      Background: Using optical coherence tomography, we evaluated early follow-up findings of significant stent malapposition (SSM) in patients treated with second-generation drug-eluting stent. Methods and Results: From the DETECT-OCT randomized trial (Determination of the Duration of the Dual Antiplatelet Therapy by the Degree of the Coverage of the Struts on Optical Coherence Tomography From the Randomized Comparison Between Everolimus- Versus Biolimus-Eluting Stent), a total of 386 patients (390 lesions) who underwent ...
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      Mentions: Yonsei University Jung-Sun Kim Dong Hoon Choi

    7. Randomized Comparison of Strut Coverage between Ticagrelor and Clopidogrel in Acute Myocardial Infarction at 3-Month Optical Coherence Tomography

      Explore KoreaMed Synapse Cardiology
      Randomized Comparison of Strut Coverage between Ticagrelor and Clopidogrel in Acute Myocardial Infarction at 3-Month Optical Coherence Tomography
      Purpose This study aimed to compare the effects of ticagrelor and clopidogrel on early neointimal healing assessed with optical coherence tomography (OCT) after drug-eluting stent (DES) implantation in patients with acute myocardial infarction (AMI). Materials and Methods AMI patients were randomly assigned to either the ticagrelor or clopidogrel arm. After DES implantation, OCT was performed to assess the percentages of uncovered struts immediately after procedure and 3 months later. Results ...
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      Mentions: Yonsei University Jung-Sun Kim Dong Hoon Choi

    8. Characteristics of Earlier Versus Delayed Presentation of Very Late Drug‐Eluting Stent Thrombosis: An Optical Coherence Tomographic Study

      Explore jaha.ahajournals.org Cardiology
      Characteristics of Earlier Versus Delayed Presentation of Very Late Drug‐Eluting Stent Thrombosis: An Optical Coherence Tomographic Study
      Background The pathophysiology underlying very late drug‐eluting stent ( DES ) thrombosis is not sufficiently understood. Using optical coherence tomography, we investigated characteristics of very late stent thrombosis ( VLST ) according to different onset times. Methods and Results A total of 98 patients from 10 South Korean hospitals who underwent optical coherence tomography for evaluation of very late DES thrombosis were retrospectively included in analyses. VLST occurred at a median of 55 ...
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      Mentions: Gary S. Mintz University of Ulsan Yonsei University

    9. Assessing Computational Fractional Flow Reserve From Optical Coherence Tomography in Patients With Intermediate Coronary Stenosis in the Left Anterior Descending Artery

      Explore Circulation Cardiology
      Assessing Computational Fractional Flow Reserve From Optical Coherence Tomography in Patients With Intermediate Coronary Stenosis in the Left Anterior Descending Artery
      Background Intravascular optical coherence tomography (OCT) imaging provides limited information on the functional assessment of coronary stenosis. We evaluated a new approach to OCT imagebased computation modeling, which can be used to estimate the fractional flow reserve (FFR) in patients with intermediate coronary stenosis. Methods and Results Ninety-two patients with intermediate diameter stenosis in the left anterior descending artery underwent both FFR measurement with pressure wires and OCT examination. Using ...
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      Mentions: Cardiovascular Research Foundation Yonsei University Jung-Sun Kim

    10. Development of Advanced Atherosclerotic Plaque by Injection of Inflammatory Proteins in a Rabbit Iliac Artery Model

      Explore KoreaMed Synapse Cardiology
      Development of Advanced Atherosclerotic Plaque by Injection of Inflammatory Proteins in a Rabbit Iliac Artery Model
      Purpose Appropriate animal models of atherosclerotic plaque are crucial to investigating the pathophysiology of atherosclerosis, as well as for the evaluation of the efficacy and safety of vascular devices. We aimed to develop a novel animal model that would be suitable for the study of advanced atherosclerotic lesions in vivo . Materials and Methods Atherosclerotic plaque was induced in 24 iliac arteries from 12 rabbits by combining a high cholesterol diet ...
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      Mentions: Jung-Sun Kim Dong Hoon Choi Yangsoo Jang

    11. Association between fractional flow reserve and coronary plaque characteristics assessed by optical coherence tomography

      Explore Journal of Cardiology Cardiology
      Association between fractional flow reserve and coronary plaque characteristics assessed by optical coherence tomography
      Background The assessment of fractional flow reserve (FFR) in coronary lesions determines the strategy of percutaneous coronary intervention. However, the association between FFR and characteristics of the underlying coronary plaque has not been sufficiently investigated. Methods A total of 110 coronary lesions in 106 patients were evaluated using both FFR and optical coherence tomography (OCT). Coronary plaques were classified into fibrous, fibrocalcific, or fibroatheroma according to OCT evaluation at the ...
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      Mentions: Yonsei University Jung-Sun Kim Dong Hoon Choi

    12. Favorable effect of optimal lipid-lowering therapy on neointimal tissue characteristics after drug-eluting stent implantation: Qualitative optical coherence tomographic analysis

      Explore atherosclerosis-journal.com Cardiology
      Favorable effect of optimal lipid-lowering therapy on neointimal tissue characteristics after drug-eluting stent implantation: Qualitative optical coherence tomographic analysis
      Objective Serial follow-up optical coherence tomography (OCT) was used to evaluate the effect of optimal lipid-lowering therapy on qualitative changes in neointimal tissue characteristics after drug-eluting stent (DES) implantation. Methods DES-treated patients (n=218) who received statin therapy were examined with serial follow-up OCT. First and second follow-up OCT evaluations were performed approximately 6 and 18 months after the index procedure, respectively. Patients were divided into two groups, based on ...
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      Mentions: Yonsei University Jung-Sun Kim Dong Hoon Choi

    13. Three-dimensional optical coherence tomographic analysis of eccentric morphology of the jailed side-branch ostium in coronary bifurcation lesions

      Explore Canadian Journal of Cardiology Cardiology
      Three-dimensional optical coherence tomographic analysis of eccentric morphology of the jailed side-branch ostium in coronary bifurcation lesions
      Background The severity of angiographic diameter stenosis of the jailed side-branch ostium is usually overestimated over the three-dimensional (3D) optical coherence tomography (OCT)-measured actual stenosis. Using the 3D-OCT, morphologic changes in the jailed side-branch ostium were evaluated before and after a single stent crossover at coronary bifurcation lesions. Methods In 109 patients who received a single stent crossover at coronary bifurcation lesions, the pre- and post-intervention minimal lumen area ...
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      Mentions: Yonsei University Jung-Sun Kim Dong Hoon Choi

    14. Optical Coherence Tomographic Observation of In-Stent Neoatherosclerosis in Lesions With More Than 50% Neointimal Area Stenosis After Second-Generation Drug-Elnuting Stent Implantation

      Explore Circulation Cardiology
      Optical Coherence Tomographic Observation of In-Stent Neoatherosclerosis in Lesions With More Than 50% Neointimal Area Stenosis After Second-Generation Drug-Elnuting Stent Implantation
      ...-Wook Kim, MD, 5. Dong-Ho Shin, MD, MPH, 6. Jung-Sun Kim, MD, 7. Byeong-Keuk Kim, MD, 8. Young-Guk Ko, MD, 9. Donghoon Choi, MD, 10. Yangsoo Jang, MD and 11. Myeong-Ki Hong, MD 1. From the Department of Cardiology,...
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      Mentions: University of Ulsan Yonsei University Jung-Sun Kim

    15. Optical Coherence Tomographic Observation of In-Stent Neoatherosclerosis in Lesions With More Than 50% Neointimal Area Stenosis After Second-Generation Drug-Eluting Stent Implantation

      Explore Circulation Cardiology
      Optical Coherence Tomographic Observation of In-Stent Neoatherosclerosis in Lesions With More Than 50% Neointimal Area Stenosis After Second-Generation Drug-Eluting Stent Implantation
      ...-Wook Kim, MD, 5. Dong-Ho Shin, MD, MPH, 6. Jung-Sun Kim, MD, 7. Byeong-Keuk Kim, MD, 8. Young-Guk Ko, MD, 9. Donghoon Choi, MD, 10. Yangsoo Jang, MD and 11. Myeong-Ki Hong, MD 1. From the Department of Cardiology,...
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      Mentions: Yonsei University Jung-Sun Kim Dong Hoon Choi

    16. Eccentric morphology of jailed side-branch ostium after stent crossover in coronary bifurcation lesions: A three-dimensional optical coherence tomographic analysis

      Explore Journal of Cardiology Cardiology
      Eccentric morphology of jailed side-branch ostium after stent crossover in coronary bifurcation lesions: A three-dimensional optical coherence tomographic analysis
      Background Angiographic stenosis of a jailed side-branch ostium is usually observed after a single-stent crossover at coronary bifurcation lesions. However, the stenosis severity is typically overestimated due to the limited information obtained from two-dimensional morphology by angiography. We evaluated the actual stenosis of jailed side-branch ostium using three-dimensional (3D) optical coherence tomography (OCT). Methods Using 3D reconstructions of OCT data, we analyzed minimal lumen area (MLA) and eccentricity of the ...
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      Mentions: Yonsei University Jung-Sun Kim Dong Hoon Choi
    17. 1-15 of 65 1 2 3 4 5 »
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  4. About Dong Hoon Choi

    Dong Hoon Choi

    Donghoon Choi is with the Division of Cardiology at the Yonsei Cardiovascular Center part of Yonsei University College of Medicine in Seoul, Korea.

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