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Akademický článek

Prediction of functional coronary stenosis by computed tomography–derived fractional flow reserve in surgical revascularizationCentral MessagePerspective

Autor: Min-Seok Kim, MD, PhD, MSc, Ah-Jin Ryu, PhD, Jung Won Kim, MD, Seong Wook Hwang, MD, Ki-Bong Kim, MD, PhD

Publikováno v: JTCVS Open, Vol 21, Iss , Pp 111-118 (2024)

Objectives: The aims of this study were (1) to compare computed tomography–derived fractional flow reserve (CT-FFR) values with graft patency and (2) to establish the cut-off value of CT-FFR for predicting competitive graft flow after coronary arte

Externí odkaz: https://doaj.org/article/fb21d091557d489c90a0ca12e11e5d57

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Akademický článek

A Simple Method for Automatic 3D Reconstruction of Coronary Arteries From X-Ray Angiography

Autor: Minki Hwang, Sa-Bin Hwang, Hyosang Yu, Jaehyeok Kim, Daehyun Kim, Wonjae Hong, Ah-Jin Ryu, Han Yong Cho, Jinlong Zhang, Bon Kwon Koo, Eun Bo Shim

Publikováno v: Frontiers in Physiology, Vol 12 (2021)

Automatic three-dimensional (3-D) reconstruction of the coronary arteries (CA) from medical imaging modalities is still a challenging task. In this study, we present a deep learning-based method of automatic identification of the two ends of the vess

Externí odkaz: https://doaj.org/article/7412fc9e8d94400f898012fdee2d4e5b

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Akademický článek

Ganglionated plexi stimulation induces pulmonary vein triggers and promotes atrial arrhythmogenecity: In silico modeling study.

Autor: Minki Hwang, Byounghyun Lim, Jun-Seop Song, Hee Tae Yu, Ah-Jin Ryu, Young-Seon Lee, Boyoung Joung, Eun Bo Shim, Hui-Nam Pak

Publikováno v: PLoS ONE, Vol 12, Iss 2, p e0172931 (2017)

BACKGROUND:The role of the autonomic nervous system (ANS) on atrial fibrillation (AF) is difficult to demonstrate in the intact human left atrium (LA) due to technical limitations of the current electrophysiological mapping technique. We examined the

Externí odkaz: https://doaj.org/article/0a38c9e04d49461895e68a6aeafb66b7

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Akademický článek

Effectiveness of atrial fibrillation rotor ablation is dependent on conduction velocity: An in-silico 3-dimensional modeling study.

Autor: Byounghyun Lim, Minki Hwang, Jun-Seop Song, Ah-Jin Ryu, Boyoung Joung, Eun Bo Shim, Hyungon Ryu, Hui-Nam Pak

Publikováno v: PLoS ONE, Vol 12, Iss 12, p e0190398 (2017)

We previously reported that stable rotors are observed in in-silico human atrial fibrillation (AF) models, and are well represented by a dominant frequency (DF). In the current study, we hypothesized that the outcome of DF ablation is affected by con

Externí odkaz: https://doaj.org/article/99709cf677f74b0796cd664337044271

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Electrophysiological significance of the interatrial conduction including cavo‐tricuspid isthmus during atrial fibrillation

Autor: Eun Bo Shim, Byounghyun Lim, Hui Nam Pak, In Soo Kim, Boyoung Joung, Je Wook Park, Minki Hwang, Ah Jin Ryu, Hee Tae Yu

Publikováno v: J Physiol

KEY POINTS The interatrial conduction, including Bachmann's bundle, the posterior septal conduction, the anterior septal conduction, and the cavo-tricuspid isthmus, contributes to the maintenance mechanisms of atrial fibrillation in a 3D biatrial mod

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af52b739523de6743386f4b149bc2b5d
https://doi.org/10.1113/jp279660

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Akademický článek

In silico evaluation of the acute occlusion effect of coronary artery on cardiac electrophysiology and the body surface potential map.

Autor: Ah-Jin Ryu¹, Kyung Eun Lee², Soon-Sung Kwon¹, Eun-Seok Shin³, Eun Bo Shim² ebshim@kangwon.ac.kr

Publikováno v: Korean Journal of Physiology & Pharmacology. Jan2019, Vol. 23 Issue 1, p71-79. 9p.

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Influence of LVAD function on mechanical unloading and electromechanical delay: a simulation study

Autor: Eun Bo Shim, Natalia A. Trayanova, Aulia Khamas Heikhmakhtiar, Ah Jin Ryu, Ki Moo Lim, Kwang-Soup Song

Publikováno v: Medical & Biological Engineering & Computing

This study hypothesized that a left ventricular assist device (LVAD) shortens the electromechanical delay (EMD) by mechanical unloading. The goal of this study is to examine, by computational modeling, the influence of LVAD on EMD for four heart fail

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c5a17560d66e0b134add753480f69c9
https://doi.org/10.1007/s11517-017-1730-y

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THE INFLUENCES OF SWIRL FLOW ON FRACTIONAL FLOW RESERVE IN MILD/MODERATE/SEVERE STENOTIC CORONARY ARTERIAL MODELS

Autor: Gook Tae Kim, Eun Bo Shim, Kyung Eun Lee, Ah-Jin Ryu

Publikováno v: Journal of computational fluids engineering. 22:15-25

Swirl flow is often found in proximal coronary arteries, because the aortic valves can induce swirl flows in the coronary artery due to vortex formation. In addition, the curvature and tortuosity of arterial configurations can also produce swirl flow

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8227c5053e7f4c063d0d29928ee18c77
https://doi.org/10.6112/kscfe.2017.22.1.015

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Effectiveness of atrial fibrillation rotor ablation is dependent on conduction velocity: An in-silico 3-dimensional modeling study

Autor: Jun Seop Song, Boyoung Joung, Ah Jin Ryu, Hui Nam Pak, Byounghyun Lim, Hyungon Ryu, Minki Hwang, Eun Bo Shim

Publikováno v: PLoS ONE
PLoS ONE, Vol 12, Iss 12, p e0190398 (2017)

Background We previously reported that stable rotors are observed in in-silico human atrial fibrillation (AF) models, and are well represented by a dominant frequency (DF). In the current study, we hypothesized that the outcome of DF ablation is affe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b040137bbb280cb7a1aca0d8ad2f24cc
http://europepmc.org/articles/PMC5747478

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