1. Dong Hoon Choi

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    1. Mentioned In 70 Articles

    2. Silent plaque rupture in the left main stem assessed by optical coherence tomography

      Explore journals.viamedica.pl Cardiology
      Silent plaque rupture in the left main stem assessed by optical coherence tomography
      A 59-year-old man underwent primary percutaneous coronary intervention (PCI) for thrombotic total occlusion of his distal right coronary artery. Bystander disease was limited to an ambiguous lesion in the distal left main stem (LMS) with an intraluminal filling defect suggestive of a ruptured plaque. A staged inpatient assessment of the LMS was undertaken utilizing invasive physiologic and intravascular imaging assessments as distal flow in the left coronary system was preserved ...
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      Mentions: Yonsei University Jung-Sun Kim Dong Hoon Choi

    3. Optical Coherence Tomography for Coronary Bioresorbable Vascular Scaffold Implantation: A Randomized Controlled Trial

      Explore Home | AHA/ASA Journals Cardiology
      Optical Coherence Tomography for Coronary Bioresorbable Vascular Scaffold Implantation: A Randomized Controlled Trial
      Background: We investigated whether optical coherence tomography (OCT) guidance would reduce nonoptimal bioresorbable vascular scaffold (BVS) deployment. Methods: This was a randomized controlled trial. Patients who required percutaneous coronary intervention for ischemic heart disease were recruited from 2 centers in Korea. The enrolled patients were randomly assigned to receive either OCT-guided BVS (Absorb; Abbott Vascular) implantation or angiography-guided BVS implantation using an optimized technique. The primary outcome was nonoptimal deployment ...
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      Mentions: University of Ulsan Jung-Sun Kim Dong Hoon Choi

    5. Successful Culotte Stenting for Unprotected Left Main Trifurcation Disease: Insights from Optical Coherence Tomography

      Explore :: KCJ :: Korean Circulation Journal
      Successful Culotte Stenting for Unprotected Left Main Trifurcation Disease: Insights from Optical Coherence Tomography
      A 41-year-old man presenting with new-onset effort angina was referred to our clinic. Angiography revealed a left main trifurcation lesion including significant stenosis in the unprotected left main coronary artery (ULMCA), ostial left anterior descending artery (LAD), ostial left circumflex artery (LCX) with grade 3 collateral flow from the right coronary artery, and diffuse ramus intermedius artery (RI) ( Supplementary Video 1 ). After an 8-French extra backup guiding catheter with a ...
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      Mentions: Yonsei University Jung-Sun Kim Dong Hoon Choi

    6. Optical Coherence Tomography for Coronary Bioresorbable Vascular Scaffold Implantation

      Explore Home | AHA/ASA Journals Cardiology
      Optical Coherence Tomography for Coronary Bioresorbable Vascular Scaffold Implantation
      Background: We investigated whether optical coherence tomography (OCT) guidance would reduce nonoptimal bioresorbable vascular scaffold (BVS) deployment. Methods: This was a randomized controlled trial. Patients who required percutaneous coronary intervention for ischemic heart disease were recruited from 2 centers in Korea. The enrolled patients were randomly assigned to receive either OCT-guided BVS (Absorb; Abbott Vascular) implantation or angiography-guided BVS implantation using an optimized technique. The primary outcome was nonoptimal deployment ...
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      Mentions: University of Ulsan Jung-Sun Kim Dong Hoon Choi

    7. 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

    8. 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

    9. 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

    10. 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

    11. 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

    12. 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

    13. 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

    14. 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

    15. 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

    16. 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
    17. 1-15 of 70 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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