1. Ik-Kyung Jang

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    1. Mentioned In 141 Articles

    2. COMPARISON OF POST STENT OPTICAL COHERENCE TOMOGRAPHY FINDINGS AMONG THREE SUBTYPES OF CALCIFIED CULPRIT PLAQUES IN PATIENTS WITH ACUTE CORONARY SYNDROME

      COMPARISON OF POST STENT OPTICAL COHERENCE TOMOGRAPHY FINDINGS AMONG THREE SUBTYPES OF CALCIFIED CULPRIT PLAQUES IN PATIENTS WITH ACUTE CORONARY SYNDROME
      Background Recently, three subtypes of calcified plaques at the culprit lesion were reported in patients with acute coronary syndrome (ACS): eruptive calcified nodule, superficial calcific sheet, and calcified protrusion. Methods A total of 157 patients with ACS and calcified plaque at the culprit lesion were selected from our database. Optical coherence tomography (OCT) findings at index procedure and after stent implantation were compared among the three subgroups. Results In the ...
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    3. Comprehensive In Vivo Coronary Plaque Mapping: A 3-Vessel Optical Coherence Tomography Study

      Comprehensive In Vivo Coronary Plaque Mapping: A 3-Vessel Optical Coherence Tomography Study
      Background Previous pathology studies demonstrated that thin-cap fibroatheroma (TCFA) is localized in specific segments of the epicardial coronary arteries. A detailed description of in vivo coronary plaques of various phenotypes has not been reported. Objectives We performed a comprehensive analysis on the distribution of coronary plaques with different phenotypes from our 3-vessel optical coherence tomography (OCT) database. Methods OCT images of all 3 coronary arteries in 131 patients were analyzed ...
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    4. Comparison of post‐stent optical coherence tomography findings among three subtypes of calcified culprit plaques in patients with acute coronary syndrome

      Comparison of post‐stent optical coherence tomography findings among three subtypes of calcified culprit plaques in patients with acute coronary syndrome
      Objectives To compare the postprocedural optical coherence tomography (OCT) findings and in‐hospital outcomes among the three subtypes of calcified plaques: eruptive calcified nodules, superficial calcific sheet, and calcified protrusion. Background Recently, three subtypes of calcified culprit plaques were reported in patients with acute coronary syndrome (ACS). How these subtypes respond to stenting is unknown. Methods ACS patients with calcified plaque at the culprit lesion were selected from our database ...
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    5. Early versus delayed treatment with ticagrelor on residual thrombus after percutaneous coronary intervention in patients presenting with non-ST-elevation acute coronary syndrome: an optical coherence tomography study

      Early versus delayed treatment with ticagrelor on residual thrombus after percutaneous coronary intervention in patients presenting with non-ST-elevation acute coronary syndrome: an optical coherence tomography study
      Ticagrelor, a P2Y12 antagonist, is well known for its rapid, high-potent inhibition of platelet aggregation by pharmacokinetic studies [ 1 ]. In the PLATO study, ticagrelor, compared to clopidogrel, reduced the incidence of myocardial infarction, stroke, cardiovascular death and definite stent thrombosis, during 12-month follow-up in patients with acute coronary syndrome (ACS) undergoing percutaneous coronary intervention (PCI) [ 2 , 3 ]. To date, the effect of early ticagrelor administration versus treatment at the time ...
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    6. Early versus delayed treatment with ticagrelor on residual thrombus after percutaneous coronary intervention in patients presenting with non-ST-elevation acute coronary syndrome an optical coherence tomography study

      Early versus delayed treatment with ticagrelor on residual thrombus after percutaneous coronary intervention in patients presenting with non-ST-elevation acute coronary syndrome an optical coherence tomography study
      Objective The level of inhibition of platelet aggregation immediately before percutaneous coronary intervention (PCI) is known to be related to early periprocedural outcomes. Ticagrelor is a reversible P2Y12 inhibitor that provides faster and more effective platelet inhibition compared to clopidogrel. This study sought to compare the antiplatelet effect on residual thrombus between early vs. delayed administration of ticagrelor following PCI in patients presenting with non-ST-elevation acute coronary syndromes (NSTE-ACS). Methods ...
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    7. Characteristics of non-culprit plaques in acute coronary syndrome patients with layered culprit plaque

      Characteristics of non-culprit plaques in acute coronary syndrome patients with layered culprit plaque
      Aims Layered plaques represent signs of previous plaque destabilization. A recent study showed that acute coronary syndrome (ACS) patients with layered culprit plaque have more vulnerability at the culprit lesion and systemic inflammation. We aimed to compare the characteristics of non-culprit plaques between patients with or without layered plaque at the culprit lesion. We also evaluated the characteristics of layered non-culprit plaques, irrespective of culprit plaque phenotype. Methods and results ...
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    8. Cardiovascular OCT Imaging - Second Edition (Textbook)

      Cardiovascular OCT Imaging - Second Edition (Textbook)
      This heavily revised second edition comprehensively reviews the use of optical coherence tomography (OCT) in cardiovascular practice. It provides detailed guidance on how to properly interpret OCT images and successfully utilise it in daily clinical practice Chapters cover the development and physics associated with OCT, relevant interpretation skills, OCT imaging artifacts, plaque erosion, bioabsorbable stent, the detection of vulnerable plaque, and the use of OCT imaging in unison with other ...
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    9. Healed Culprit Plaques in Patients With Acute Coronary Syndrome

      Healed Culprit Plaques in Patients With Acute Coronary Syndrome
      ackground Healed plaques, morphologically characterized by a layered phenotype, are frequently found in subjects with sudden cardiac death. However, in vivo data are lacking. Objectives The purpose of this study was to determine the prevalence, morphological characteristics, and clinical significance of healed culprit plaques in patients with acute coronary syndromes (ACS) using optical coherence tomography (OCT). Methods A total of 376 ACS patients (252 ST-segment elevation myocardial infarction [MI] and ...
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    10. Angiographic features of patients with coronary plaque erosion

      Angiographic features of patients with coronary plaque erosion
      Background Although an in vivo diagnosis of coronary plaque erosion has become possible by optical coherence tomography (OCT), angiographic characteristics of erosion have not been studied. The aim of this study was to investigate the angiographic features of plaque erosion in patients with non-ST elevation acute coronary syndromes (NSTE-ACS). Methods Patients with NSTE-ACS who underwent OCT of the culprit lesion were collected at 11 institutions from 6 countries. Patients were ...
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    11. Differences in coronary plaque morphology between East Asian and Western White patients: an optical coherence tomography study

      Differences in coronary plaque morphology between East Asian and Western White patients: an optical coherence tomography study
      Aims Prevalence of coronary artery disease as well as cardiac mortality varies between Asian and White patients. However, the link between race and plaque characteristics in patients with coronary artery disease remains largely unexplored. Thus, we aimed to investigate the detailed culprit plaque characteristics between East Asian and White patients using optical coherence tomography . Patients and methods A total of 101 East Asians were matched to 101 White patients. Matching ...
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    12. Nonculprit Plaque Characteristics in Patients With Acute Coronary Syndrome Caused by Plaque Erosion vs Plaque Rupture A 3-Vessel Optical Coherence Tomography Study

      Nonculprit Plaque Characteristics in Patients With Acute Coronary Syndrome Caused by Plaque Erosion vs Plaque Rupture A 3-Vessel Optical Coherence Tomography Study
      Importance Patients with culprit plaque rupture are known to have pancoronary plaque vulnerability. However, the characteristics of nonculprit plaques in patients with acute coronary syndromes caused by plaque erosion are unknown. Objective To investigate the nonculprit plaque phenotype in patients with acute coronary syndrome according to culprit plaque pathology (erosion vs rupture) by 3-vessel optical coherence tomography imaging. Design, Setting, and Participants In this observational cohort study, between August 2010 ...
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  2. About Ik-Kyung Jang

    Ik-Kyung Jang

    Ik-Kyung Jang, MD, PHD, is with the Cardiology Division at Massachusetts General Hospital and Harvard Medical School. 

    Dr. Jang came to Massachusetts General Hospital in 1987 from Leuven University in Belgium, where he has completed his residency in medicine and fellowship in cardiology. He also successfully defended his doctorate thesis at the same university. After his advanced fellowship in cardiology at MGH, he joined the staff and is currently working as a Physician and an interventional cardiologist in the Cardiology Division. He holds currently an academic title of Associate Professor of Medicine at Harvard Medical School.

     

    A recipient of the Partners in Excellence Award for Research in 2000 and for leadership in 2006, his research roster is extensive, and is focused on acute coronary syndromes including acute myocardial infarction. His earlier research focused on pharmacology and physiology of thrombosis and thrombolysis. In 1994 he extended his interests to clinical studies. Since founding the Coronary Clinical Trial Group within the Cardiac Unit in 1995, he has conducted numerous clinical studies. He also led Clinical Research Office of the Cardiology Division between 2003 and 2006. He is currently the Director of the Cardiology Laboratory for Integrative Physiology and Imaging (CLIPI). He has been collaborating with the Cardiac Imaging Group at MGH to develop and evaluate different imaging modalities to visualize cardiac structures, including coronary atheromatous plaques.

     

    For the last eleven years he has pioneered the application of intravascular Optical Coherence Tomography (OCT) to patients to better characterize vulnerable plaque and to understand the mechanisms of plaque rupture. Dr. Jang has been invited to lectures at numerous national and international meetings. His publications number more than 200.

  3. Quotes

    1. The C7-XR Imaging System represents a significant step forward for intracoronary imaging...We were all amazed with the speed and simplicity of the LightLab OCT procedure, and the clinical utility is truly unique. I expect OCT to rapidly become the new intracoronary imaging standard.
      In LightLab Imaging Announces FDA Clearance of C7-XR™ Coronary OCT Products in the United States
    2. In 2009, more than 10,000 OCT cases were performed. This collaborative effort will bring together this wealth of information and help us facilitate scientific advancement in the field of OCT.
      In Massachusetts General Hospital announces creation of international registry for coronary optical coherence tomography
    3. The development of OCT and its rapid adoption for intravascular imaging is enabling the ability of clinicians to capture in vivo what was previously seen only through a pathologist’s microscope...Of course, the long-term goal is to identify plaques and prevent sudden cardiac death and heart attacks
      In Massachusetts General Hospital announces creation of international registry for coronary optical coherence tomography