International Conference

2023

[47] SJ Park , JM Seo, S Choi, Numerical Simulation of Ventilation System in Engine Room under Ship Construction, APS DFD 2023, Washington DC, Nov 19-21, 2023 (NRF-2023R1A2C2003781, KSC-2022-CRE-0495, Hanwha Ocean)

[46] JM Hwang, YJ Hong, NQ Hung, CH Lee, WJ Kim, KJ Chae, GY Jin, S Choi, Airflow and Particle Transport Simulations for Subjects with Cement Dust Exposure, ATS 2023, Washington DC, May 19-24, 2023 (NRF-2020R1F1A1069853 & 2023R1A2C2003781, RE2018001360004)

[45] SR Kim, S Choi, Quantitative computed tomography with computational fluid dynamics analysis in asthma, 2023 KAAACI, Seoul, South Korea, May 11-12, 2023

2022

[44] TM Tran, S Choi, Prediction of Airflow Resistance On 1D Skeletal Structure of Human Airway Using Graph Neural Network, ACFD 2022, Jeju, South Korea, October 16-19, 2022 (NRF-2020R1F1A1069853)

[43] NQ Hung, S Choi, An OpenFOAM-based Computational Fluid Dynamics Model for Respiratory System, ACFD 2022, Jeju, South Korea, October 16-19, 2022 (NRF-2020R1F1A1069853)

[42] MH Kim, S Choi, A Numerical Analysis of Condensation-Induced Water Hammer in Cold Reheat Pipe, ACFD 2022, Jeju, South Korea, October 16-19, 2022 (S3215296, R18XA06-67)

[41] S Choi, Severe Alterations of CT-based Airway Structure and Lung Function in Subjects under Cement Dust Exposure, ACFD 2022, Jeju, South Korea, October 16-19, 2022

2021

[40] T Kim, M Lim, CH Lee, KJ Chae, SH Bak, SO Kwon, GY Jin, E-K Park, WJ Kim, S Choi, Longitudinal Alterations in Cement Dust Exposed Subjects via Quantitative Computed Tomography, Airway Vista 2021, Online Virtual, March 27-28, 2021 (NRF-2020R1F1A1069853, MOE-2018001360004 & 2018001360001)

[39] J Park, S Kim, J Lim, K Jin, M Yang, K Chae, G Jin, T Kim, H Kim, C Lee, K Lee, S Choi, Quantitative Computed Tomography Imaging Metric Based Assessment of Airway Structural and Lung Functional Alterations During Asthma Acute Exacerbations, American Thoracic Society 2021 International Conference, Online Virtual, May 14-19, 2021 (NRF-2019M3E5D3073365 & 2020R1F1A1069853, MOE-RE201801360004)

2020

[38] S Choi, HB Cho, TW Kim, WJ Kim, CH Lee, KJ Chae, SH Bak, SO Kwon, GY Jin, E-K Park, J Choi, C-L Lin, EA Hoffman, Quantitative Assessment of Airway Narrowing, Wall Thickening, and Alteration of Branching Angle in Subjects with Cement Dust Exposure, American Thoracic Society, Online Virtual, August 1-5, 2020 (NRF-2017R1D1A1B03034157, MOE-RE201801360004 & RE201801360001)

2019

[37] T Kim, HB Cho, WJ Kim, CH Lee, KJ Chae, SH Bak, SO Kwon, GY Jin, J Choi, E-K Park, S Choi, Quantitative CT Imaging-based Structural and Functional Characteristics in Cement Dust-exposed Subjects with Normal Spirometry, Asian Chapters of International Society for Environmental Epidemiology and the International Society of Exposure Science, Daegu, South Korea, October 16-19, 2019 (NRF, MOE-RE201806039)

[36] T Kim, WJ Kim, CH Lee, KJ Chae, SH Bak, SO Kwon, GY Jin, J Choi, E-K Park, S Choi, Correlation of PM10 and NO2 with Quantitative CT Imaging-based Variables, Asian Chapters of International Society for Environmental Epidemiology and the International Society of Exposure Science, Daegu, South Korea, October 16-19, 2019 (NRF, MOE)

[35] H Cho, S Choi, Quantitative CT Imaging for Airway Structure and Lung Function, International Conference on Medical Physics and School, Quy Nhon, Vietnam, July 29–August 2, 2019 (NRF)

[34] S Yoon, S Choi, C Zou, Choi J, M Tawhai, EA Hoffman, C-L Lin, Airflow and Pressure Distribution for Healthy Subjects vs. Asthmatic Patients with 1-D Computational Fluid Dynamics Model, American Thoracic Society, May 2019 (NRF-2017R1D1A1B03034157, MOE-RE201806039, FDA-U01-FD005837, NIH-U01HL114494)

[33] H Cho, C Lee, K Chae, G Jin, J Choi, C-L Lin, EA Hoffman, SE Wenzel, M Castro, SB Fain, NN Jarjour, ML Schiebler, RG Barr, N Hansel, CB Cooper, EAC Kleerup, MK Han, PG Woodruff, RE Kanner, ER Bleecker, SP
Peters, WC Moore, and S Choi, for the National Heart, Lung and Blood Institute’s SubPopulations and InteRmediate Outcome Measures In COPD Study (SPIROMICS) and Severe Asthma Research Program (SARP), Differentiation of Airway Structure and Lung Function in a Korean Asian vs. White American Cohort via Quantitative CT-based Variables, American Thoracic Society, May 2019 (NRF-2016R1D1A1B03936078 & 2017R1D1A1B03034157, MOE-RE201806039 & RE201806027, NIH)

[32] J Park, S Kim, J-K Lim, H Cho, K Jin, M Yang, K Chae, G Jin, C Lee, T-B Kim, and S Choi, QCT Imaging-based Structural and Functional Phenotypes during Asthma Attacks, Airway Vista 2019, Seoul, South Korea, March 30-31, 2019 (NRF-2017R1D1A1BO3O34157, MOE-RE201806039)

[31] S Yoon, S Choi, C Zou, Choi J, M Tawhai, EA Hoffman, C-L Lin, 1-D Computational Fluid Dynamics Model to Predict Pressure Distributions for Healthy Subjects vs. Asthmatic Subjects, Airway Vista 2019, Seoul, South Korea, March 30-31, 2019 (NRF-2017R1D1A1B03034157, MOE-RE201806039, U01-FD005837, U01HL114494)

[30] H Cho, W Kim, S Bak, S Kwon, G Jin, C Lee, and S Choi, Quantitative CT based Structural and Functional Characteristics in Dust-exposed Subjects, Airway Vista 2019, Seoul, South Korea, March 30-31, 2019 (NRF-2017R1D1A1B03034157, MOE-RE201806039)

2018

[29] J Choi, S Choi, EA Hoffman, P O'Shaughnessy, M Castro, R Delvadia, R Walenga, A Babiskin, C-L Lin, Assessment of Effects of Selective Airway Luminal Expansion on Inhaled Particle Deposition in Severe Asthmatic Human Lungs-A Numerical Study, American Physical Society, 71st Annual Meeting of the APS Division of Fluid Dynamics, Atlanta, GA. Nov. 18-20, 2018 (NRF)

[28] H Cho, C Lee, K Chae, G Jin, J Choi, C-L Lin, EA Hoffman, S Choi, Comparison of Airway and Lung features between Korean and Caucasian, Using Quantitative CT images, Society of Environmental Toxicology and Chemistry Asia-Pacific 2018, Daegu, Rep. of Korea. Sep. 16-19, 2018 (MOE-RE201806039)

[27] J Choi, LJ LeBlanc, S Choi, B Haghighi, EA Hoffman, P O'Shaughnessy, SE Wenzel, M Castro, SB Fain, NN Jarjour, ML Schiebler, LC Denlinger, C-L Lin, Characteristics of Inhaled Particle Deposition in the Lungs of Imaging-Based Asthma Clusters: A Numerical Study, American Thoracic Society Annual Meeting, San Diego, CA. May 18-23, 2018

[26] S Choi, B Haghighi, EA Hoffman, JD Newell, AP Comellas, RG Barr, MK Han, CB Cooper, WK O'Neal, P Woodruff, FJ Martinez, ER Bleecker, RP Bowler, JA Krishnan, RE Kanner, R Paine, SP Peters, MT Dransfield, NN Hansel, GJ Criner, D Couper, SP Bhatt, C-L Lin, SPIROMICS for the NHLBI SubPopulations and InteRmediate Outcome Measures in COPD Study (SPIROMICS), QCT Imaging-Based Clusters of Former Smokers Identify Clinical Phenotypes in the SubPopulations and InteRmediate Outcome Measures in COPD Study (SPIROMICS), American Thoracic Society Annual Meeting, San Diego, CA. May 18-23, 2018

[25] B Haghighi, S Choi, J Choi, F Li, EA Hoffman, AP Comellas, JD Newell, RG Barr, MK Han, ER Bleecker, CB Cooper, D Couper, NN Hansel, RE Kanner, E Kazerooni, FJ Martinez, WK O'Neal, R Paine, SI Rennard, P Woodruff, C-L Lin, Imaging-Based Cluster Analysis Using Novel Metrics in COPD for Sub-Phenotyping of Current Smokers: SPIROMICS, American Thoracic Society Annual Meeting, San Diego, CA. May 18-23, 2018

2017

[24] Choi S, Relationship between Pulmonary Airflow and Airway Resistance Using An 1-D Resistance and Compliance Model, 2017 Korea-Japan CFD Workshop, Seoul, Nov. 9-10, 2017

[23] Haghighi B, Choi J, Choi S, Hoffman EA, Lin CL, Cluster-specific small airway modeling for imaging-based CFD analysis of pulmonary air flow and particle deposition in COPD smokers, 70th Annual Meeting of the APS Division of Fluid Dynamics, Denver, Nov. 19-21, 2017

[22] Choi J, LeBlanc L, Choi S, Haghighi B, Hoffman EA, Lin CL, Cluster-guided imaging-based CFD analysis of airflow and particle deposition in asthmatic human lungs, 70th Annual Meeting of the APS Division of Fluid Dynamics, Denver, Nov. 19-21, 2017

[21] Zou C, Choi J, Haghighi B, Choi S, Hoffman EA, Lin C-L, Characteristics of airflow and particle deposition in COPD current smokers, 70th Annual Meeting of the APS Division of Fluid Dynamics, Denver, Nov. 19-21, 2017

[20] Choi S, Haghighi B, Hoffman EA, Newell JD, Wenzel SE , Castro M, Fain SB, Jarjour NN, Schiebler Mark, Barr RG, Han MK, Cooper CB, Couper D, Hansel NN, Kanner RE, Kazerooni E, Kleerup E, O'Neal W, Woodruff PG, Martinez FJ, Bleecker E, Lin C-L, Quantitative CT Imaging-Based Characteristics In Asthma And COPD Populations With Chronic Functional Alterations, American Thoracic Society Annual Meeting, Washington D.C., May 22, 2017

[19] Haghighi B, Choi S, Hoffman EA, Newell JD, Barr RG, MeiLan Han MK, Bleecker E, Cooper CB, Couper D, Hansel NN, Kanner RE, Kazerooni E, Kleerup E, Martinez FJ, O'Neal W, Woodruff PG, Lin C-L, Quantitative Assessment Of Multiscale Imaging-Based Structural And Functional Metrics In The Subpopulations And Intermediate Outcome Measures In COPD Study (SPIROMICS), American Thoracic Society Annual Meeting, Washington D.C., May 21, 2017

~2016

[18] Choi S, Choi J, Hoffman EA, Lin C-L. Relationship between Pulmonary Airflow and Resistance in Patients with Airway Narrowing Using An 1-D Network Resistance and Compliance Model, 69th Annual Meeting of the APS Division of Fluid Dynamics, Portland, OR. Nov. 20-22, 2016

[17] Choi S, Choi J, Miyawaki S, Hoffman EA, Lin C-L. Improved Estimations of Flow Distribution Using A 1-D Resistance Network Model in Asthmatic Airways, American Thoracic Society Annual Meeting, San Francisco, CA. May 15, 2016

[16] Haghighi B, Choi S, Hoffman EA, Newell Jr. JD, Graham BR, Han M, Bleecker E, Cooper CB, Martinez FJ, O’Neal W, Woodruff PG, Lin C-L, for the NHLBI SubPopulations and InteRmediate Outcome Measures In COPD Study (SPIROMICS). Multiscale Imaging-Based Clusters in the COPD Cohort Associates with Clinical Characteristics: the SubPopulations and InteRmediate Outcome Measures in COPD Study (SPIROMICS), American Thoracic Society Annual Meeting, San Francisco, CA. May 18, 2016

[15] Jahani N, Choi S, Hoffman EA, Comellas AP, Kline JN, Lin C-L. Comparison of Regional Ventilation and Lung Deformation for Asthmatic vs. Healthy Human Lungs Using 4D-CT Image Data, American Thoracic Society Annual Meeting, San Francisco, CA. May 18, 2016

[14] Choi J, Choi S, Lee C, Hoffman EA, Newell JD, Lin C-L. CT Image Matching Assessment of Multiscale Lung Responses To Serial Methacholine And Bronchodilator Inhalations In Asthmatic and Healthy Subjects, American Thoracic Society Annual Meeting, San Francisco, CA. May 15, 2016

[13] Lin C-L, Choi S, Wenzel SE, Castro M, Fain S, Jarjour N, Schiebler ML, Hoffman EA. Toward Imaging-based Asthma Sub-Grouping: Cluster Analysis with Multiscale Structural and Functional Variables in Asthma Populations, Multiscale Modeling Consortium Meeting, Bethesda, MD, Sep. 8-9, 2015

[12] Choi S, Hoffman EA, Wenzel SE, Castro M, Fain S, Jarjour N, Schiebler ML, Lin C-L. Linking and Clustering Multiscale Structural and Functional Variables in Asthmatic Populations, American Thoracic Society Annual Meeting, Denver, Colorado. May 18, 2015, Publication: Am J Respir Crit Care Med 191;2015:A2464

[11] Jahani N, Choi S, Choi J, Hoffman EA, Lin C-L. Four-Dimensional Computed Tomography Imaging And Analysis Of Healthy Human Lungs, American Thoracic Society Annual Meeting, Denver, Colorado. May 18, 2015, Publication: Am J Respir Crit Care Med 191;2015:A3513

[10] Choi S, Miyawaki S, Choi J, Hoffman EA, Wenzel SE, Lin C-L. Correlations of Flow Structure and Particle Deposition with Structural Alterations in Severe Asthmatic Lungs, 67th Annual Meeting of the APS Division of Fluid Dynamics, San Francisco, CA. Nov. 23, 2014

[9] Choi J, Jahani N, Choi S, Hoffman EA, Lin C-L. 4DCT-based assessment of regional airflow distribution in healthy lungs during tidal breathing, 67rd Annual Meeting of the APS Division of Fluid Dynamics, San Francisco, CA. Nov. 23, 2014

[8] Lin C-L, Choi S, Wenzel SE, Castro M, Hoffman EA. Toward Population-based Analysis: Improved CT-based Measures of Air-trapping and Airway Dimension in a Multi-center Asthmatic Study, Multiscale Modeling Consortium Meeting, Bethesda, MD, Sep. 3-4, 2014

[7] Choi S, Hoffman EA, Wenzel SE, Castro M, Lin C-L. Air-Trapping, Lung Shape, And Bifurcation Angle Are Unique In Severe Asthma, American Thoracic Society Annual Meeting, San Diego, CA, May 21, 2014, Publication: Am J Respir Crit Care Med 189;2014:A5418

[6] Choi S, Hoffman EA, Tawhai MH, Yin Y, Castro M, Wenzel SE, Lin C-L. The Difference Of Regional Lung Function Between Normals And Severe Asthmatics Via Image Registration, American Thoracic Society Annual Meeting, Philadelphia, PA, May 19, 2013, Publication: Am J Respir Crit Care Med 185;2013:A1051

[5] Lin C-L, Choi S, Hoffman EA, Tawhai MH. A Numerical Study of Structure and Function Relationships in Normal and Severe Asthmatic Lungs, Multiscale Modeling Consortium Meeting, Bethesda, MD, Oct. 22-23, 2012

[4] Choi S, Hoffman EA, Tawhai MH, Lin C-L. Correlation among regional ventilation, airway resistance and particle deposition in normal and severe asthmatics lungs, 65rd Annual Meeting of the APS Division of Fluid Dynamics, San Diego, CA. Nov. 19, 2012

[3] Choi S, Hoffman EA, Tawhai MH, Castro M, Lin C-L. A Numerical Study of Airway Resistance and Particle Deposition in Normal and Asthmatic Lungs, American Thoracic Society Annual Meeting, San Francisco, CA. May 18, 2012, Publication: Am J Respir Crit Care Med 185;2012:A2070

[2] Choi S, Cho MH, Choi HG, Yoo JY. A Numerical Approach for Simulating Incompressible Two-Phase Flows Considering Surface Tension Effect, 63rd Annual Meeting of the APS Division of Fluid Dynamics, Long Beach, CA, Nov 21, 2010

[1] Choi S, Cho MH, and Yoo JY. A Level-Set Method for Incompressible Two-phase Flow with Surface tension effect, 6th International Conference on Computational Fluid Dynamics (ICCFD6), St. Petersburg, Russia, July 16, 2010