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Assessment of Image Quality for Selective Intracoronary Contrast-Injected CT Angiography in a Hybrid Angio-CT System: A Feasibility Study in Swine

Ha S, Jung S, Park HB, Shin S, Arsanjani R, Hong Y, Lee BK, Jang Y, Jeon B, Park SI, Shim H, Chang HJ

Purpose: To compare image quality in selective intracoronary contrast-injected computed tomography angiography (SelectiveCTA) with that in conventional intravenous contrast-injected CTA (IV-CTA). Materials and Methods: Six pigs (35 to 40 kg) underwent...
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Effect of lateral lymph node dissection on the quality of life and genitourinary function after neoadjuvant chemoradiotherapy for rectal cancer

Ha RK, Park B, Park SC, Chang HJ, Oh JH

Purpose: This study was performed to evaluate the quality of life and genitourinary function after total mesorectal excision with lateral lymph node dissection compared to those after total mesorectal excision...
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Circadian Rhythm, Sleep Quality, and Health-Related Quality of Life in Korean Middle Adults

Kim D, Chang HJ, Lee W, Seo H, Yang KI, Chu MK, Yun CH

Objectives: The aim of this study is to evaluate relationship of health-related quality of life (HRQoL) with chronotype along with quality and quantity of sleep in Korean middle adults. Methods: Data...
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Evaluation of the Source and Quality of Information Regarding Cervical Disc Herniation on Websites

Hong YC, Kim WJ, Soh JW, Chang HJ, Hong CH

Study Design: In this original study, a cross-sectional analysis was performed to evaluate websites with information on cervical disc herniation. Objectives: The purpose of this study was to assess the source...
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Reversible Obstructive Hydrocephalus Associated with Hypertensive Brainstem Encephalopathy

Chang HJ, Lee AY, Lee J

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Hereditary Myopathy with Early Respiratory Failure with a Heterozygous TTN Gene Missense Mutation

Chang HJ, Park YE, Kim DS, Shin JH, Lee W, Park KH, Sohn EH

Hereditary myopathy with early respiratory failure (HMERF) is characterized by early respiratory insufficiency which is inappropriate to the degree of limb muscle weakness. Recently, mutation in TTN gene was found...
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Characteristics of minute T1 colorectal cancer in relevance to pathology and treatment

Park SH, Oh SO, Park SS, Roh SJ, Han KS, Kim B, Hong CW, Kim BC, Sohn DK, Chang HJ, Park SC, Oh JH

Purpose: Minute T1 colorectal cancer (CRC) lesions (≤5 mm) are rare; however, little is known about their characteristics and aggressiveness. In this study, we evaluated the characteristics of minute T1...
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Diagnostic Accuracy of a Novel On-site Virtual Fractional Flow Reserve Parallel Computing System

Park HB, Jang Y, Arsanjani , Nguyen MT, Lee SE, Jeon B, Jung S, Hong Y, Ha S, Kim S, Lee SW, Chang HJ

PURPOSE: To evaluate the diagnostic accuracy of a novel on-site virtual fractional flow reserve (vFFR) derived from coronary computed tomography angiography (CTA). MATERIALS AND METHODS: We analyzed 100 vessels from 57...
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A Case Report of Golf-Swing-Induced T2∼T3 Clay-Shoveler’s Fractures

Seo JS, Park YS, Chang HJ, Park JG, Cho ES, Ku KH

Clay-shoveler’s fractures are rare stress-type avulsion fractures of the spinous processes especially in sports. There have been two case reports that discussed clay-shoveler’s fractures in golf. A 36-year-old beginner golfer...
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Standardized Pathology Report for Colorectal Cancer, 2nd Edition

Kim Bh, Kim JM, Kang GH, Chang HJ, Kang DW, Kim JH, Bae JM, Seo AN, Park HS, Kang YK, Lee KH, Cho MY, Do IG, Lee HS, Chang HK, Park DY, Kang HJ, Sohn JH, Chang MS, Jung ES, Jin SY, Yu E, Han HS, Kim YW, The Gastrointestinal Pathology Study Group of the Korean Society of Pathologists

The first edition of the ‘Standardized Pathology Report for Colorectal Cancer,’ which was developed by the Gastrointestinal Pathology Study Group (GIP) of the Korean Society of Pathologists, was published 13...
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Magnetic Resonance-Based Texture Analysis Differentiating KRAS Mutation Status in Rectal Cancer

Oh JE, Kim MJ, Lee J, Hur BY, Kim B, Kim DY, Baek JY, Chang HJ, Park SC, Oh JH, Cho SA, Sohn DK

Purpose Mutation of the Kirsten Ras (KRAS) oncogene is present in 30%-40% of colorectal cancers and has prognostic significance in rectal cancer. In this study, we examined the ability of radiomics...
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Development and External Validation of a Deep Learning Algorithm for Prognostication of Cardiovascular Outcomes

Cho IJ, Sung JM, Kim HC, Lee SE, Chae MH, Kavousi M, Rueda-Ochoa OL, Ikram MA, Franco OH, Min JK, Chang HJ

BACKGROUND AND OBJECTIVES: We aim to explore the additional discriminative accuracy of a deep learning (DL) algorithm using repeated-measures data for identifying people at high risk for cardiovascular disease (CVD),...
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Genetic Risk Score, Combined Lifestyle Factors and Risk of Colorectal Cancer

Cho YA, Lee J, Oh JH, Chang HJ, Sohn DK, Shin A, Kim J

PURPOSE: Both genetic and lifestyle factors contribute to the risk of colorectal cancer, but each individual factor has a limited effect. Therefore, we investigated the association between colorectal cancer and...
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Liver Metastasis of Synchronous Small Rectal Neuroendocrine Tumors in the Absence of Risk Factors

Kim SA, Choi JE, Kim BC, Chang HJ, Sohn DK

The incidence of rectal neuroendocrine tumors (NETs) has increased worldwide, including in Korea. Rectal NETs are usually single lesions, but synchronous multiple lesions are reported in 2–4.5% of patients. Small...
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Opalski Syndrome Presenting as Sensorimotor Deficits Ipsilateral to Cerebral Infarction

An HK, Shin JW, Kim SY, Chang HJ, Jeong HS

Opalski syndrome is a rare lateral medullary infarction variant presenting with ipsilateral motor deficits known to be caused by involvement of the post-decussating pyramidal tract. Here, we report two rare...
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Evaluation of Coronary Artery Calcium Progression in Asymptomatic Individuals with an Initial Score of Zero

Lee W, Yoon YE, Kwon O, Lee H, Park HE, Chun EJ, Choi SY, Cho GY, Chang HJ

BACKGROUND AND OBJECTIVES: Coronary artery calcium (CAC) scoring in the asymptomatic population can improve cardiovascular risk prediction. We aimed to assess CAC progression and the impact of coronary risk factors...
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Prognostic Implications of the Left Atrial Volume Index in Patients with Progressive Mitral Stenosis

Cho IJ, Jeong H, Choi JY, Lee SE, Chang HJ

BACKGROUND: Limited data are available on the prognosis of progressive mitral stenosis (MS). We evaluated the factors associated with adverse events in patients with progressive MS. METHODS: We retrospectively analyzed 259...
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Acute Hemodynamic Changes after Single Administration of Udenafil in Pulmonary Arterial Hypertension: a Phase IIa Study

Chang SA, Kim HK, Chang HJ, Kim DK

BACKGROUND AND OBJECTIVES: Udenafil, a new phosphodiesterase-5 inhibitor (PDE5i), has been used to treat erectile dysfunction. Given the proven benefit of PDE5i in pulmonary arterial hypertension (PAH), we evaluated serial...
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Feasibility of transanal total mesorectal excision in cases with challenging patient and tumor characteristics

Sohn DK, Park SC, Kim MJ, Chang HJ, Han KS, Oh JH

PURPOSE: To assess the feasibility of transanal total mesorectal excision in difficult cases including obese patients or patients with bulky tumors or threatened mesorectal fascias. METHODS: We performed laparoscopy-assisted transanal total...
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Benefit of Four-Dimensional Computed Tomography Derived Ejection Fraction of the Left Atrial Appendage to Predict Thromboembolic Risk in the Patients with Valvular Heart Disease

Kim IC, Chang HJ, Cho IJ, Shim CY, Hong GR, Heo JH, Nam HS, Kim YJ, Choi BW, Chung N

BACKGROUND AND OBJECTIVES: Decreased left atrial appendage (LAA) emptying velocity in transesophageal echocardiography (TEE) is related with higher incidence of thrombus and increased risk of stroke. Patients with valve disease...
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