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Prediction of the composition of urinary stones using deep learning

Kim US, Kwon HS, Yang W, Lee W, Choi C, Kim JK, Lee SH, Rim D, Han JH

Purpose: This study aimed to predict the composition of urolithiasis using deep learning from urinary stone images. Materials and Methods: We classified 1,332 stones into 31 classes according to the stone...
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Commutability Assessment of Frozen Human Serum Pools for External Quality Assessment of Tumor Markers

Cho Ej, Kim SH, Hong J, Lee H, Hyun J, Cho SE, Lee W, Kim HS, Oh EJ, Chun S, Min WK

Background: Commutability is essential to harmonize different measuring systems and to evaluate the performance of participating laboratories in external quality assessment (EQA). This study aims to assess the com mutability...
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The effect of reduced thickness in different regions on the fracture resistance of monolithic zirconia crowns

Abukabbos L, Park JU, Lee W

Purpose. This study aims to evaluate the combined effect of reduced thickness in different regions on the fracture resistance of monolithic zirconia crowns. Materials and methods. Seven nickel-chromium dies were...
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Fabrication Parameter-Dependent Physico-Chemical Properties of Thiolated Gelatin/PEGDA Interpenetrating Network Hydrogels

Kim S, Choi Y, Lee W, Kim K

BACKGROUND: The development of three-dimensional hydrogels using polymeric biomaterials is a key technology for tissue engineering and regenerative medicine. Successful tissue engineering requires the control and identification of the physicochemical...
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A Retrospective Clinical Evaluation of an Artificial Intelligence Screening Method for Early Detection of STEMI in the Emergency Department

Kim D, Hwang JE, Cho Y, Cho HW, Lee W, Lee JH, Oh IY, Baek S, Lee E, Kim J

Background: Rapid revascularization is the key to better patient outcomes in ST-elevation myocardial infarction (STEMI). Direct activation of cardiac catheterization laboratory (CCL) using artificial intelligence (AI) interpretation of initial electrocardiography...
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Semi-Quantitative Scoring of Late Gadolinium Enhancement of the Left Ventricle in Patients with Ischemic Cardiomyopathy: Improving Interobserver Reliability and Agreement Using Consensus Guidance from the Asian Society of Cardiovascular Imaging-Practical Tutorial (ASCI-PT) 2020

Kim C, Park CH, Kim DY, Cha J, Lee BY, Park CH, Kang EJ, Koo HJ, Kitagawa K, Cha MJ, Krittayaphong R, Choi SI, Viswamitra S, Ko SM, Kim SM, Hwang SH, Trang NN, Lee W, Kim YJ, Lee J, Yang DH

Objective: This study aimed to evaluate the effect of implementing the consensus statement from the Asian Society of Cardiovascular Imaging-Practical Tutorial 2020 (ASCI-PT 2020) on the reliability of cardiac MR...
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Beyond Coronary CT Angiography: CT Fractional Flow Reserve and Perfusion

Kim MY, Yang DH, Choo KS, Lee W

Cardiac CT has been proven to provide diagnostic and prognostic evaluation of coronary artery disease for cardiovascular risk stratification and treatment decision-making based on rapid technological development and various research...
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Primary Tumor Suppression and Systemic Immune Activation of Macrophages through the Sting Pathway in Metastatic Skin Tumor

Synn CB, Kim DK, Kim JH, Byeon Y, Kim YS, Yun MR, Lee JM, Lee W, Lee EJ, Lee S, Lee YW, Lee DJ, Kim HW, Kim CG, Hong MH, Park JD, Lim SM, Pyo KH

Purpose: Agonists of the stimulator of interferon genes (STING) play a key role in activating the STING pathway by promoting the production of cytokines. In this study, we investigated the...
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The Association Between Long Working Hours and Infertility

Ahn J, Lee SH, Park MY, Oh SH, Lee W

Background This study aimed to investigate whether working long hours was related to infertility among female Korean workers, while taking age into consideration. Methods We used data from the 2018 National Survey on...
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Deep Learning-Based Algorithm for the Detection and Characterization of MRI Safety of Cardiac Implantable Electronic Devices on Chest Radiographs

Kim UH, Kim MY, Park EA, Lee W, Lim WH, Kim HL, Oh S, Jin KN

Objective: With the recent development of various MRI-conditional cardiac implantable electronic devices (CIEDs), the accurate identification and characterization of CIEDs have become critical when performing MRI in patients with CIEDs....
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Delays in Intracerebral Hemorrhage Management Is Associated with Hematoma Expansion and Worse Outcomes: Changes in COVID-19 Era

Han HJ, Park KY, Kim J, Lee W, Lee YH, Jang CK, Cho KC, Park SK, Chung J, Kwon YS, Kim YB, Lee JW, Kim SY

Purpose: The coronavirus disease 2019 (COVID-19) pandemic disrupted the emergency medical care system worldwide. We analyzed the changes in the management of intracerebral hemorrhage (ICH) and compared the pre-COVID-19 and...
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Investigation of the Characteristics of New, Uniform, Extremely Small Iron-Based Nanoparticles as T1 Contrast Agents for MRI

So YH, Lee W, Park EA, Kim PK

Objective: The purpose of this study was to evaluate the magnetic resonance (MR) characteristics and applicability of new, uniform, extremely small iron-based nanoparticles (ESIONs) with 3–4-nm iron cores using contrast-enhanced...
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Therapeutic efficacy of low-dose steroid combined with hyaluronidase in ultrasonography-guided intra-articular injections into the shoulder for adhesive capsulitis

Lee JH, Choi EJ, Han SC, Chung HS, Kwon MJ, Jayaram P, Lee W, Lee MY

Purpose: The purpose of this study was to compare the efficacy of low-dose steroid, highdose steroid, and low-dose steroid combined with hyaluronidase with respect to intra-articular injection therapy for adhesive...
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A pilot clinical study of low-intensity transcranial focused ultrasound in Alzheimer’s disease

Jeong H, Im JJ, Park JS, Na SH, Lee W, Yoo SS, Song IU, Chung YA

Purpose: Increasing attention has been paid to low-intensity transcranial focused ultrasound (tFUS) for its potential therapeutic effects in Alzheimer's disease (AD). While preclinical studies have shown promising therapeutic effects of...
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Comparison of the effects of horizontal and vertical micro-osteoperforations on the biological response and tooth movement in rabbits

Kim Sg, Kook YA, Lim HJ, Park P, Lee W, Park JH, Bayome M, Kim Y

Objective: This study aimed to compare the amount of tooth movement after multiple horizontal (MH) and single vertical (SV) micro-osteoperforations (MOPs), and evaluate the histological changes after orthodontic force application...
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Anti-inflammatory effects of DA-9601, an extract of Artemisia asiatica, on aceclofenac-induced acute enteritis

Kim JH, Shin CY, Jang SW, Kim DS, Lee W, Kim HG, Kim HR

DA-9601 is an extract obtained from Artemisia asiatica, which has been reported to have anti-inflammatory effects on gastrointestinal lesions; however, its possible anti-inflammatory effects on the small intestine have not...
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Associations of Abnormal Sleep Duration with Occupational and Leisure-time Physical Activity in the Working Population: A Nation-wide Population-based Study

Beak M, Choi WJ, Lee W, Ham S

Background The present study investigated the association between two domains of physical activity (occupational physical activity [OPA] and leisure-time physical activity [LTPA]) and sleep duration. Methods We investigated 3,421 paid workers from the...
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Emergency Department Visits for Panic Attacks and Ambient Air Pollution: A Time-Stratified Case-Crossover Analysis

Moon YK, Lee W, Oh S, Kim H, Myung W, Lee H, Kim DK

Objectives This study investigates the association between short-term exposure to air pollutants and panic attacks requiring emergency department (ED) visits. Methods We identified 1926 patients who visited EDs in Seoul with...
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Comparison of perioperative outcomes in pancreatic head cancer patients following either a laparoscopic or open pancreaticoduodenectomy with a superior mesenteric artery first approach

Park MY, Lee W, Kwon J, Song KB, Hwang DW, Lee JH, Kim SC

Backgrounds/Aims: A superior mesenteric artery first approach (SFA) technique can improve the complete resection rate. It can be used to determine whether an operation can be performed by invading the...
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Application of Current Image-Enhanced Endoscopy in Gastric Diseases

Lee W

Image-enhanced endoscopy (IEE) plays an integral role in endoscopic diagnosis and treatment. IEE enables an early and accurate detection of cancer and characterization of lesions prior to therapeutic decisions. Ideal...
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