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Role of Contrast-Enhanced Ultrasound as a Second-Line Diagnostic Modality in Noninvasive Diagnostic Algorithms for Hepatocellular Carcinoma

Kang HJ, Lee JM, Yoon JH, Han JK

Objective: To investigate the diagnostic performance of contrast-enhanced ultrasound (CEUS) and its role as a second-line imaging modality after gadoxetate-enhanced MRI (Gd-EOB-MRI) in the diagnosis of hepatocellular carcinoma (HCC) among...
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Prognostic Value of Tumor Regression Grade on MR in Rectal Cancer: A Large-Scale, Single-Center Experience

Yoen H, Park HE, Kim SH, Yoon JH, Hur BY, Bae JS, Kim JH, Oh HJ, Han JK

Objective: To determine the prognostic value of MRI-based tumor regression grading (mrTRG) in rectal cancer compared withpathological tumor regression grading (pTRG), and to assess the effect of diffusion-weighted imaging (DWI)...
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Acute ST-elevation myocardial infarction due to prosthetic valve endocarditis after transcatheter aortic valve implantation

Cho JH, Han JK, Yang HM, Koo BK, Kim HS

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Two-Dimensional-Shear Wave Elastography with a Propagation Map: Prospective Evaluation of Liver Fibrosis Using Histopathology as the Reference Standard

Lee DH, Lee ES, Lee JY, Bae JS, Kim H, Lee KB, Yu SJ, Cho EJ, Lee JH, Cho YY, Han JK, Choi BI

Objective: The aim of this study was to prospectively evaluate whether liver stiffness (LS) assessments, obtained by twodimensional (2D)-shear wave elastography (SWE) with a propagation map, can evaluate liver fibrosis...
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Uterine clear cell carcinoma risk in White versus non-White US subpopulations: does race matter?

Chow S, Wong D, Liao CI, Mann A, Tian C, Darcy KM, Chan JK

Objective: To determine incidence rates of uterine clear cell carcinoma among non-White US subpopulations. Methods: Data from the United States Cancer Statistics and National Cancer Database from 2004 to 2016 were...
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Non-invasive monitoring of hepatic steatosis via acoustic structure quantification of ultrasonography with MR spectroscopy as the reference standard

Lee DH, Lee JY, Park MS, Han JK

Purpose: The purpose of this study was to prospectively evaluate whether monitoring hepatic steatosis by ultrasonography with acoustic structure quantification (ASQ) is feasible, using magnetic resonance spectroscopy (MRS) as the...
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SYNTAX Score and SYNTAX Score II Can Predict the Clinical Outcomes of Patients with Left Main and/or 3-Vessel Disease Undergoing Percutaneous Coronary Intervention in the Contemporary Cobalt-Chromium Everolimus-Eluting Stent Era

Kang J, Han JK, Kang DY, Zheng C, Yang HM, Park KW, Kang HJ, Koo BK, Kim HS

BACKGROUND AND OBJECTIVES: The impact of SYNergy between percutaneous coronary intervention with TAXus and cardiac surgery score (SS) and SS II in patients who receive percutaneous coronary intervention with second-generation...
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Quantitative Evaluation of Hepatic Steatosis Using Normalized Local Variance in a Rat Model: Comparison with Histopathology as the Reference Standard

Bae JS, Lee JY, Lee DH, Kim H, Lee Y, Han JK

OBJECTIVE: To evaluate the diagnostic performance of the normalized local variance (NLV) ultrasound technique in the assessment of hepatic steatosis, and to identify the factors that influence the NLV value...
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Microvascular Flow Imaging of Residual or Recurrent Hepatocellular Carcinoma after Transarterial Chemoembolization: Comparison with Color/Power Doppler Imaging

Kang HJ, Lee JM, Jeon SK, Ryu H, Yoo J, Lee JK, Han JK

OBJECTIVE: To determine the feasibility of microvascular flow imaging (MVFI) in comparison with color/power Doppler imaging (CDI/PDI) for detection of intratumoral vascularity in suspected post-transarterial chemoembolization (TACE) residual or recurrent...
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Dynamic Contrast-Enhanced Ultrasound of Gastric Cancer: Correlation with Perfusion CT and Histopathology

Joo I, Kim SH, Lee DH, Han JK

OBJECTIVE: To assess the relationship between contrast-enhanced ultrasound (CEUS) parameters and perfusion CT (PCT) parameters of gastric cancers and their correlation with histologic features. MATERIALS AND METHODS: This prospective study was...
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Prediction of Treatment Outcome of Chemotherapy Using Perfusion Computed Tomography in Patients with Unresectable Advanced Gastric Cancer

Lee DH, Kim SH, Lee SM, Han JK

OBJECTIVE: To evaluate whether data acquired from perfusion computed tomography (PCT) parameters can aid in the prediction of treatment outcome after palliative chemotherapy in patients with unresectable advanced gastric cancer...
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Hepatocellular Carcinoma: Texture Analysis of Preoperative Computed Tomography Images Can Provide Markers of Tumor Grade and Disease-Free Survival

Oh J, Lee JM, Park J, Joo I, Yoon JH, Lee DH, Ganeshan B, Han JK

OBJECTIVE: To investigate the usefulness of computed tomography (CT) texture analysis (CTTA) in estimating histologic tumor grade and in predicting disease-free survival (DFS) after surgical resection in patients with hepatocellular...
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Deferiprone Related Arthropathy in 11-Year-Old Boy with Hereditary Spherocytosis

Seo YK, Han JK, Suh WS, Park KB

Regular transfusion therapy in children with intractable hematologic disorder results in hemosiderosis. It causes several organ damages such as liver, heart, and endocrine system and increases risk of infection. Thus,...
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Trends and Outcomes of Transcatheter Aortic Valve Implantation (TAVI) in Korea: the Results of the First Cohort of Korean TAVI Registry

Yu CW, Kim WJ, Ahn JM, Kook H, Kang SH, Han JK, Ko YG, Choi SH, Koo BK, Chang K, Kim HS

BACKGROUND AND OBJECTIVES: There has been no nation-wide data on the outcomes of transcatheter aortic valve implantation (TAVI) after commercialization of TAVI in Korea. We report clinical features and outcomes...
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The Feasibility Study of Contrast-enhanced Ultrasound Using a 3 Dimension Transducer for Tumor Volume Measurement in Rabbit Hepatic VX2 Carcinoma Comparison with 2 Dimension Ultrasound and 3 Dimension Ultrasound without Contrast: Preliminary Results

Kim J, Kim JH, Choi SY, Han JK

BACKGROUND/AIMS: To investigate the feasibility of tumor volume measurement using contrastenhanced ultrasound (US) with 3 dimension transducer (3D CEUS) in rabbit hepatic VX2 carcinoma. METHODS: Three different tumor volume measurements, including...
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Iodine Quantification on Spectral Detector-Based Dual-Energy CT Enterography: Correlation with Crohn's Disease Activity Index and External Validation

Kim YS, Kim SH, Ryu HS, Han JK

OBJECTIVE: To correlate CT parameters on detector-based dual-energy CT enterography (DECTE) with Crohn's disease activity index (CDAI) and externally validate quantitative CT parameters. MATERIALS AND METHODS: Thirty-nine patients with CD were...
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Prediction of Local Tumor Progression after Radiofrequency Ablation (RFA) of Hepatocellular Carcinoma by Assessment of Ablative Margin Using Pre-RFA MRI and Post-RFA CT Registration

Yoon JH, Lee JM, Klotz E, Woo H, Yu MH, Joo I, Lee ES, Han JK

OBJECTIVE: To evaluate the clinical impact of using registration software for ablative margin assessment on pre-radiofrequency ablation (RFA) magnetic resonance imaging (MRI) and post-RFA computed tomography (CT) compared with the...
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Alteration of MRP2 expression and the graft outcome after liver transplantation

Yi NJ, Kim J, Choi Y, Kim H, Lee KB, Jang JJ, Lee JY, Lee JM, Han JK, Lee KW, Suh KS

PURPOSE: Multidrug resistance-associated protein (MRP) 2 is a glutathione conjugate in the canalicular membrane of hepatocytes. Early graft damage after liver transplantation (LT) can result in alteration of MRP2 expression....
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A portable high-intensity focused ultrasound system for the pancreas with 3D electronic steering: a preclinical study in a swine model

Chang W, Lee JY, Lee JH, Bae JS, Cho YJ, Kang KJ, Son K, Chung YR, Lee KB, Han JK

PURPOSE: The aim of this animal study was to evaluate the safety and feasibility of a portable, ultrasonography-guided, high-intensity focused ultrasound (USg-HIFU) system to treat the pancreas. METHODS: Eight swine were...
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Role of CT in Differentiating Malignant Focal Splenic Lesions

Jang S, Kim JH, Hur BY, Ahn SJ, Joo I, Kim MJ, Han JK

OBJECTIVE: The purpose of this study was to asses the CT findings and clinical features differentiating malignant from benign focal splenic lesions. MATERIALS AND METHODS: Among 673 patients with splenectomy, we...
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