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Featured researches published by H.-G. Lee.


Archive | 2018

FFR in Complex Lesions

H.-G. Lee; Joon-Hyung Doh

Complex coronary lesion subset include bifurcation, left main, serial lesions, and multivessel disease still remained as controversies in decision of revascularization. Invasive physiologic assessment such as FFR can guide the need of revascularization and reduce unnecessary complicated intervention in complex lesion subset. Application of FFR on the complex lesion subsets requires a comprehensive understanding of physiologic and anatomical findings and pitfalls in specific complex lesions. In this section, recent update would be provided on the physiologic assessment in complex coronary lesions.


Catheterization and Cardiovascular Interventions | 2018

Favorable neurological outcome after ischemic cerebrovascular events in patients treated with percutaneous left atrial appendage occlusion compared with warfarin

Oh-Hyun Lee; Young Dae Kim; Jung-Sun Kim; Hui-Nam Pak; Geu-Ru Hong; Chi Young Shim; Jae-Sun Uhm; In-Jeong Cho; Boyoung Joung; Sung-Jin Hong; Chul-Min Ahn; Byeong-Keuk Kim; Young-Guk Ko; Donghoon Choi; Myeong-Ki Hong; C. Yu; H.-G. Lee; W.C. Kang; Eun-Seok Shin; Rak-Kyeong Choi; Do Sun Lim; Xavier Freixa; Apostolos Tzikas; Ji Hoe Heo; Yangsoo Jang; Jai-Wun Park

This study sought to investigate neurological disability after ischemic cerebrovascular events in patients treated with left atrial appendage (LAA) occlusion compared with those on warfarin.


Journal of the American College of Cardiology | 2016

TCT-522 The Independence of Coronary Microvascular Dysfunction from Epicardial Disease Severity: Three-Vessel Invasive Coronary Physiologic Study

Yuhei Kobayashi; Joo Myung Lee; William F. Fearon; janghoon Lee; Frederik M. Zimmermann; Ji-Hyun Jung; H.-G. Lee; Joon-Hyung Doh; Chang-Wook Nam; Eun-Seok Shin; Bon-Kwon Koo

The index of microcirculatory resistance (IMR) is an invasive measure of the coronary microvascular function. To date, little is known about the collinearity in disease progression between microvascular and epicardial coronary artery. This study consisted of 93 patients who underwent three-vessel


Journal of The Korean Magnetics Society | 2007

The Study of Antiferromagnetic Spin-lattice Coupling of FeCr 2 Se 4

Ju-Hong Kang; Bae-Soon Son; Sam-Jin Kim; Chul-Sung Kim; H.-G. Lee; Min-Seok Park; Sung-Ik Lee

[ ] prepared under the high pressure (3 GPa) has been studied with x-ray, neutron diffraction techniques, superconducting quantum interference device (SQUID) magnetometer, resistance, and Mossbauer spectroscopy. The temperature dependence of resistance is explained by Mott-VRH and small polaron model for the regions I (T42 K), respectively. Neutron diffraction results show an antiferromagnetic spin-lattice coupling near the Neel temperature. So finally the distance of atom is enlarged in region (110 shows convex type of temperature dependence.


Physical Review B | 2005

Effect of apical oxygen replacement by chlorine on the thermodynamic properties of Ca1.82Na0.18CuO2Cl2 single crystals

Kyung-Hee Kim; Heon-Jung Kim; Jung-Dae Kim; H.-G. Lee; Sung-Ik Lee


Physical Review Letters | 2009

Collapse of the peak effect due to ac-induced flux creep in an isotropic vortex system of MgCNi3 single crystals.

Dong-Jin Jang; Hyun-Sook Lee; H.-G. Lee; Moo-Hyun Cho; Sung-Ik Lee


Physica C-superconductivity and Its Applications | 2007

Preparation of high Jc YBCO films on LAO by spray pyrolysis process using nitrate precursors

S.-K. Hong; J.G. Kim; Hai-Doo Kim; H.-W. Cho; S.-K. Yu; Ji-Hyun Ahn; Jinho Joo; Gye-Won Hong; H.-G. Lee


Jacc-cardiovascular Interventions | 2018

Prognostic Implications of Relative Increase and Final Fractional Flow Reserve in Patients With Stent Implantation

Joo Myung Lee; Doyeon Hwang; Ki Hong Choi; Tae-Min Rhee; Jonghanne Park; Hyung Yoon Kim; Hae Won Jung; Ji-Won Hwang; H.-G. Lee; Ho-Jun Jang; Su Hong Kim; Young Bin Song; Yun-Kyeong Cho; Chang-Wook Nam; Joo-Yong Hahn; Eun-Seok Shin; Yoshiaki Kawase; Akiko Matsuo; Nobuhiro Tanaka; Joon-Hyung Doh; Bon-Kwon Koo; Hitoshi Matsuo


Physica C-superconductivity and Its Applications | 2007

Synthesis of Ca1−xNaxCuO2Cl2 single crystals by using a high-pressure technique

Kyung-Hee Kim; H.-G. Lee; Soo-Hee Oh; Jung-Dae Kim; Sung-Ik Lee


Journal of the Korean Physical Society | 2006

Superconducting properties of Ca1.82Na0.18CuO2Cl2 single crystals from the equilibrium magnetization

Kyung-Hee Kim; Heon-Jung Kim; Jung-Dae Kim; H.-G. Lee; Sung-Ik Lee

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Sung-Ik Lee

Pohang University of Science and Technology

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Kyung-Hee Kim

Seoul National University

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Ho-Jun Jang

Seoul National University Hospital

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Jung-Dae Kim

Pohang University of Science and Technology

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Bon-Kwon Koo

Seoul National University Hospital

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Hyun-Sook Lee

Pohang University of Science and Technology

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