1. Kyung Hee University

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    1. Mentioned In 50 Articles

    2. Quantification of retinal microvascular parameters by severity of diabetic retinopathy using wide-field swept-source optical coherence tomography angiography

      Quantification of retinal microvascular parameters by severity of diabetic retinopathy using wide-field swept-source optical coherence tomography angiography
      Purpose: To investigate the diagnostic utility of microvascular parameters for grading the severity of diabetic retinopathy (DR) with a range of views using wide-field swept-source optical coherence tomography angiography (SS-OCTA). Methods: This retrospective study grouped 235 eyes with diabetes into the five grades: diabetes without retinopathy (no-DR), mild non-proliferative DR (NPDR), moderate NPDR, severe NPDR, and proliferative DR (PDR). Foveal avascular zone (FAZ) metrics, vessel density (VD), and the capillary ...
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    3. Predictors for Rapid Progression of Coronary Calcification: An Optical Coherence Tomography Study

      Predictors for Rapid Progression of Coronary Calcification: An Optical Coherence Tomography Study
      Background The role of coronary calcification in cardiovascular events and plaque stabilization is still being debated, and factors involved in the progression of coronary calcification are not fully understood. This study aimed to identify the predictors for rapid progression of coronary calcification. Methods and Results Patients with serial optical coherence tomography imaging at baseline and at 6 months were selected. Changes in the calcification index and predictors for progression of ...
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    4. Gap in capillary perfusion and burden of treatment in branch retinal vein occlusion: A wide-field optical coherence tomography angiography study

      Gap in capillary perfusion and burden of treatment in branch retinal vein occlusion: A wide-field optical coherence tomography angiography study
      Purpose: To evaluate correlations between the burden of anti-vascular endothelial growth factor (VEGF) treatment and microperfusion status in superficial and deep capillary plexus (SCP and DCP) using wide-field optical coherence tomography angiography (OCT-A). Methods: A total 19 eyes with branch retinal vein occlusion (BRVO) were included in this retrospective study. Area of foveal avascular zone (FAZ), capillary non-perfusion area (NPA), vascular density, and perfusion gap were compared between SCP and ...
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    5. Predictors of Rapid Plaque Progression: An Optical Coherence Tomography Study

      Predictors of Rapid Plaque Progression: An Optical Coherence Tomography Study
      Objectives This study sought to identify morphological predictors of rapid plaque progression. Background Two patterns of plaque progression have been described: slow linear progression and rapid step-wise progression. The former pattern will cause stable angina when the narrowing reaches a critical threshold, whereas the latter pattern may lead to acute coronary syndromes or sudden cardiac death. Methods Patients who underwent optical coherence tomography (OCT) imaging during the index procedure and ...
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    6. Neointima characteristics as a prognostic marker for drug-coated balloon angioplasty in patients with in-stent restenosis: an optical coherence tomography study

      Neointima characteristics as a prognostic marker for drug-coated balloon angioplasty in patients with in-stent restenosis: an optical coherence tomography study
      Background Research has shown that the prognosis of in-stent restenosis (ISR) lesions after drug-coated balloon (DCB) angioplasty can differ in relation to in-stent neointimal characteristics. However, changes in neointima characteristics after DCB have not been studied. This study sought to investigate changes in neointima characteristics after DCB for ISR. Methods From the Yonsei Optical Coherence Tomography (OCT) registry, data on DCBs performed in patients with ISR were collected. Neointima characteristics ...
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    7. Efficacy of coronary imaging on bifurcation intervention

      Efficacy of coronary imaging on bifurcation intervention
      During the coronary bifurcation intervention procedure, imaging including intravascular ultrasound and optical coherence tomography is essential to provide precise anatomy of the lesion and morphological information. This consensus document between the Korean Bifurcation Club and the Japanese Bifurcation Club summarizes practical guidelines and current evidences on lesion assessment, device selection, procedural guidance, and the optimization of bifurcation intervention by the imaging.
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    8. Spatial Distribution of Vulnerable Plaques: Comprehensive In Vivo Coronary Plaque Mapping

      Spatial Distribution of Vulnerable Plaques: Comprehensive In Vivo Coronary Plaque Mapping
      Objectives The authors performed a comprehensive analysis on the distribution of coronary plaques with different phenotypes from our 3-vessel optical coherence tomography (OCT) database. 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. Methods OCT images of all 3 coronary arteries in 131 patients were ...
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    9. High Spatial Endothelial Shear Stress Gradient Independently Predicts Site of Acute Coronary Plaque Rupture and Erosion

      High Spatial Endothelial Shear Stress Gradient Independently Predicts Site of Acute Coronary Plaque Rupture and Erosion
      Aims To investigate local haemodynamics in the setting of acute coronary plaque rupture and erosion. Methods and Results Intracoronary optical coherence tomography performed in 37 patients with acute coronary syndromes caused by plaque rupture (n=19) or plaque erosion (n=18) was used for 3D reconstruction and computational fluid dynamic simulation. Endothelial shear stress (ESS), spatial ESS gradient (ESSG), and oscillatory shear index (OSI) were compared between plaque rupture and ...
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    10. Circadian variations in pathogenesis of ST-segment elevation myocardial infarction: an optical coherence tomography study

      Circadian variations in pathogenesis of ST-segment elevation myocardial infarction: an optical coherence tomography study
      Previous studies have reported a circadian variation in the onset of ST-segment elevation myocardial infarction (STEMI). However, underlying mechanisms for the circadian variation have not been fully elucidated. We investigated the relationship between onset of STEMI and the underlying pathology using optical coherence tomography (OCT). Patients with a diagnosis of STEMI were selected from a multicenter OCT registry. Patients were divided into 4 groups based on the estimated time of ...
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    11. Predictors for layered coronary plaques: an optical coherence tomography study

      Predictors for layered coronary plaques: an optical coherence tomography study
      Healed coronary plaques, morphologically characterized by a layered pattern, are signatures of previous plaque disruption and healing. Recent optical coherence tomography (OCT) studies showed that layered plaque is associated with vascular vulnerability. However, factors associated with layered plaques have not been studied. The aim of this study was to investigate predictors for layered plaque at the culprit plaques and at non-culprit plaques. Patients with coronary artery disease who underwent pre-intervention ...
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    12. 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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    13. 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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    14. 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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    15. Comparison of Anterior Segment Measurements between Scheimpflug Camera and New Module of Optical Coherence Tomography

      Comparison of Anterior Segment Measurements between Scheimpflug Camera and New Module of Optical Coherence Tomography
      Purpose We compared the anterior segment measurements using a Scheimpflug camera (Pentacam [Oculus Inc., Wetzlar, Germany]) and a new anterior segment module of optical coherence tomography (Cirrus HD-OCT 5000 [Carl Zeiss Meditec, Dublin, CA, USA]). Methods Anterior segment measurements were evaluated in 47 eyes of 26 patients who visited for the purpose of cataract surgery. Measurements of the central corneal thickness (CCT), anterior chamber depth (ACD), anterior chamber angle (ACA ...
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  2. About Kyung Hee University

    Kyung Hee University

    Kyung Hee University is a private university in South Korea. It is located in Seoul, with a second campus (Global Campus) in the suburban city of Suwon. KHU offers many degree programs some of which are fully in English. According to the Joongang Daily Newspaper's rankings on Korean universities in 2010, KHU was ranked as fifth among all comprehensive universities in Korea. Chosun-QS Asian University Ranking 2010 ranked Kyung Hee as among the top Asian universities. QS World University Rankings 2011 ranked Kyung Hee 245th in the world and 6th best in Korea