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2020 Clinical Practice Guideline for Percutaneous Transthoracic Needle Biopsy of Pulmonary Lesions: A Consensus Statement and Recommendations of the Korean Society of Thoracic Radiology

Yoon SH, Lee SM, Park CH, Lee JH, Kim H, Chae KJ, Jin KN, Lee KH, Kim JI, Hong JH, Hwang EJ, Kim H, Suh YJ, Park S, Park YS, Kim DW, Choi M, Park CM

Percutaneous transthoracic needle biopsy (PTNB) is one of the essential diagnostic procedures for pulmonary lesions. Its role is increasing in the era of CT screening for lung cancer and precision...
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A Review on Gynecomastia and Male Breast Cancer for Radiologists

Hwang EJ, Cha JH

The most common cause of a palpable mass or asymmetry in male breast is gynecomastia; however, male breast cancer should not be overlooked as a cause, even though it is...
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Assessment of Objective Audiometry to Predict Subjective Satisfaction in Patients With Hearing Aids

Kwak MY, Choi WR, Park JW, Hwang EJ, Ha YR, Chung JW, Kang WS

Objectives. To investigate the correlation of objective audiometry with user satisfaction as measured with the questionnaire scores. Methods. Twenty patients with hearing loss, who agreed to wear a hearing aid and...
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Clinical Implementation of Deep Learning in ThoracicRadiology: Potential Applications and Challenges

Hwang EJ, Park CM

Chest X-ray radiography and computed tomography, the two mainstay modalities in thoracic radiology, are under active investigation with deep learning technology, which has shown promising performance in various tasks, including detection, classification,...
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Implementation of a Deep Learning-Based ComputerAided Detection System for the Interpretation of Chest Radiographs in Patients Suspected for COVID-19

Hwang EJ, Kim H, Yoon SH, Goo JM, Park CM

Objective: To describe the experience of implementing a deep learning-based computer-aided detection (CAD) system for the interpretation of chest X-ray radiographs (CXR) of suspected coronavirus disease (COVID-19) patients and investigate...
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Significant Abnormalities Other than Lung Cancer in Korean Lung Cancer CT Screening

Yoon SH, Hong J, Hwang EJ, Kim H, Lim HJ, Suh YJ, Kim HY, Goo JM

A low-dose chest CT is performed for early detection of lung cancer, but the CT scan frequently shows several incidental abnormalities. Identification of the incidental findings may enable early detection...
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Analysis of Apparent Diffusion Coefficients of the Brain in Healthy Controls: A Comparison Study between Single-Shot Echo-Planar Imaging and Read-out-Segmented Echo-Planar Imaging

Choi Y, Hwang EJ, Nam Y, Choi HS, Jang J, Jung SL, Ahn KJ, Kim BS

OBJECTIVE: To compare apparent diffusion coefficients (ADCs) of brain segments by using two diffusion-weighted imaging acquisition modes, single-shot echo-planar imaging (ss-EPI) and read-out-segmented echo-planar imaging (rs-EPI), and to assess their...
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Quantitative Thoracic Magnetic Resonance Criteria for the Differentiation of Cysts from Solid Masses in the Anterior Mediastinum

Hwang EJ, Paek M, Yoon SH, Kim J, Lee HY, Goo JM, Kim H, Kim H, Ackman JB

OBJECTIVE: To evaluate quantitative magnetic resonance imaging (MRI) parameters for differentiation of cysts from and solid masses in the anterior mediastinum. MATERIALS AND METHODS: The development dataset included 18 patients from...
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Awareness, knowledge, and use of folic acid among non-pregnant Korean women of childbearing age

Kim MJ, Kim J, Hwang EJ, Song Y, Kim H, Hyun T

BACKGROUND/OBJECTIVES: Folic acid supplementation before pregnancy is known to reduce the risk of neural tube defects. The purposes of this study were to investigate the awareness, knowledge, and use of...
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Open Bronchus Sign on CT: A Risk Factor for Hemoptysis after Percutaneous Transthoracic Biopsy

Kim H, Park CM, Yoon SH, Hwang EJ, Lee JH, Ahn SY, Goo JM

OBJECTIVE: We hypothesized that open bronchi within target pulmonary lesions are associated with percutaneous transthoracic needle biopsy (PTNB)-related hemoptysis. We sought to analyze and compare patient characteristics and target features...
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Phylogenetic Placement and Morphological Characterization of Sclerotium rolfsii (Teleomorph: Athelia rolfsii) Associated with Blight Disease of Ipomoea batatas in Korea

Paul NC, Hwang EJ, Nam SS, Lee HU, Lee JS, Yu GD, Kang YG, Lee KB, Go S, Yang JW

In this study, we aimed to characterize fungal samples from necrotic lesions on collar regions observed in different sweetpotato growing regions during 2015 and 2016 in Korea. Sclerotia appeared on...
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Breast and Cervical Cancer Screening Behavior in Female Cancer Survivors: The Korea National Health and Nutrition Examination Survey, 2007–2012

Lee EA, Shin J, Hwang EJ, Lee JW

BACKGROUND: The aim of this study was to compare breast and cervical cancer screening rates between female cancer survivors and a population without cancer to identify factors related to cervical...
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Assessment of Arterial Wall Enhancement for Differentiation of Parent Artery Disease from Small Artery Disease: Comparison between Histogram Analysis and Visual Analysis on 3-Dimensional Contrast-Enhanced T1-Weighted Turbo Spin Echo MR Images at 3T

Jang J, Kim TW, Hwang EJ, Choi HS, Koo J, Shin YS, Jung SL, Ahn KJ, Kim BS

OBJECTIVE: The purpose of this study was to compare the histogram analysis and visual scores in 3T MRI assessment of middle cerebral arterial wall enhancement in patients with acute stroke,...
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Latex of Ficus carica L. Induces Apoptosis Through Caspase and Bcl-2 Family in FaDu Human Hypopharynx Squamous Carcinoma Cells

Shin BS, Lee SA, Moon SM, Han SH, Hwang EJ, Kim SG, Kim DK, Kim JS, Park BR, Kim CS

Ficus carica L. (common fig), one of the first plants cultivated by humans, originated in the Mediterranean basin and currently grows worldwide, including southwest Asia and South Korea. It has...
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Structural Equation Modeling for Public Hospital Quality of Care, Image, Role Performance, Satisfaction, Intent to (Re)visit, and Intent to Recommend Hospital as Perceived by Community Residents

Hwang EJ, Sim IO

PURPOSE: The study purposes were to construct and test structural equation modeling on the causal relationship of community residents' perceived quality of care, image, and role performance with satisfaction, intention...
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Digital Tomosynthesis for Evaluating Metastatic Lung Nodules: Nodule Visibility, Learning Curves, and Reading Times

Lee KH, Goo JM, Lee SM, Park CM, Bahn YE, Kim H, Song YS, Hwang EJ

OBJECTIVE: To evaluate nodule visibility, learning curves, and reading times for digital tomosynthesis (DT). MATERIALS AND METHODS: We included 80 patients who underwent computed tomography (CT) and DT before pulmonary metastasectomy....
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A Case of Unilesional Mycosis Fungoides Treated with Photodynamic Therapy Using Methyl-Aminolevulinate

Jang S, Hwang EJ, Ryu HH, Cho KH, Jo SJ

  • KMID: 2246252
  • Korean J Dermatol.
  • 2015 Jan;53(1):58-61.
Various treatment modalities are available for mycosis fungoides including topical steroids, topical chemotherapy, phototherapy, and spot radiation therapy. However, these modalities do not always result in optimal effects, with efficacy...
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A Case of Incontinentia Pigmenti in a Boy with Klinefelter Syndrome

Hwang EJ, Park GY, Min SU, Cho KH

  • KMID: 2089037
  • Korean J Dermatol.
  • 2014 Sep;52(9):642-645.
Incontinentia pigmenti (IP) is an uncommon X-linked, dominantly inherited disorder due to a mutation in the NEMO (NF-kappaB essential modulator) gene on the X chromosome. IP mostly occurs in female...
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Portable high-intensity focused ultrasound system with 3D electronic steering, real-time cavitation monitoring, and 3D image reconstruction algorithms: a preclinical study in pigs

Choi JW, Lee JY, Hwang EJ, Hwang I, Woo S, Lee CJ, Park EJ, Choi BI

  • KMID: 2319356
  • Ultrasonography.
  • 2014 Jul;33(3):191-199.
PURPOSE: The aim of this study was to evaluate the safety and accuracy of a new portable ultrasonography-guided high-intensity focused ultrasound (USg-HIFU) system with a 3-dimensional (3D) electronic steering transducer,...
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Monopolar Radiofrequency Ablation Using a Dual-Switching System and a Separable Clustered Electrode: Evaluation of the In Vivo Efficiency

Yoon JH, Lee JM, Hwang EJ, Hwang IP, Baek J, Han JK, Choi BI

OBJECTIVE: To determine the in vivo efficiency of monopolar radiofrequency ablation (RFA) using a dual-switching (DS) system and a separable clustered (SC) electrode to create coagulation in swine liver. MATERIALS AND...
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