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Prognostic Value of Coronary CT Angiography forPredicting Poor Cardiac Outcome in Stroke Patientswithout Known Cardiac Disease or Chest Pain:The Assessment of Coronary Artery Disease in StrokePatients Study

Yoon SH, Kim E, Jeon Y, Yi SY, Bae HJ, Jang IK, Lee JM, Yoo SM, White CS, Chun EJ

Objective: To assess the incremental prognostic value of coronary computed tomography angiography (CCTA) in comparison toa clinical risk model (Framingham risk score, FRS) and coronary artery calcium score (CACS) for...
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Troponin-Positive Non-Obstructive Coronary Arteries and Myocardial Infarction with Non-Obstructive Coronary Arteries: Definition, Etiologies, and Role of CT and MR Imaging

Yoo SM, Jang S, Kim JA, Chun EJ

In approximately 10% of patients with acute myocardial infarction (MI), angiography does not reveal an obstructive coronary stenosis. This is known as myocardial infarction with non-obstructive coronary arteries (MINOCA), which...
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Recent Update of Advanced Imaging for Diagnosis of Cardiac Sarcoidosis: Based on the Findings of Cardiac Magnetic Resonance Imaging and Positron Emission Tomography

Chang S, Lee WW, Chun EJ

Sarcoidosis is a multisystem disease characterized by noncaseating granulomas. Cardiac involvement is known to have poor prognosis because it can manifest as a serious condition such as the conduction abnormality,...
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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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Assessment of Left Ventricular Myocardial Diseases with Cardiac Computed Tomography

Ko SM, Kim TH, Chun EJ, Kim JY, Hwang SH

Rapid advances in cardiac computed tomography (CT) have enabled the characterization of left ventricular (LV) myocardial diseases based on LV anatomical morphology, function, density, and enhancement pattern. Global LV function...
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Ultrasonographic evaluation of complications related to transfemoral arterial procedures

Chun EJ

The transfemoral arterial approach is used to gain access for angiography, percutaneous coronary interventions, or various endovascular therapies. To decrease the risk of procedure-related vascular complications, it is recommended to...
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Multimodality Imaging in Patients with Secondary Hypertension: With a Focus on Appropriate Imaging Approaches Depending on the Etiologies

Ahn H, Chun EJ, Lee HJ, Hwang SI, Choi DJ, Chae IH, Lee KW

Although the causes of hypertension are usually unknown, about 10% of the cases occur secondary to specific etiologies, which are often treatable. Common categories of secondary hypertension include renal parenchymal...
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Additive Role of Coronary Magnetic Resonance Angiography for the Evaluation of Coronary Artery Disease

Kim MJ, Yoon YE, Park JJ, Kim YK, Chun EJ, Choi SI, Cho GY

Coronary magnetic resonance angiography (CMRA) allows a noninvasive assessment of the coronary anatomy without exposing the patients to radiation. It is also superior to coronary computed tomography angiography (CCTA) for...
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SEALONE (Safety and Efficacy of Coronary Computed Tomography Angiography with Low Dose in Patients Visiting Emergency Room) trial: study protocol for a randomized controlled trial

Kim J, Kang JW, Kim K, Choi SI, Chun EJ, Kim YG, Kim WY, Seo DW, Shin J, Lee H, Jin KN, Ahn S, Hwang SS, Kim KP, Jeong RB, Ha SO, Choi B, Yoon CH, Suh JW, Kim HL, Kim JK, Jang S, Seo JS

OBJECTIVE: Chest pain is one of the most common complaints in the emergency department (ED). Cardiac computed tomography angiography (CCTA) is a frequently used tool for the early triage of...
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CT Features of Vasculitides Based on the 2012 International Chapel Hill Consensus Conference Revised Classification

Hur JH, Chun EJ, Kwag HJ, Yoo JY, Kim HY, Kim JJ, Lee KW

Vasculitis, characterized by inflammation of vessel walls, is comprised of heterogeneous clinicopathological entities, and thus poses a diagnostic challenge. The most widely used approach for classifying vasculitides is based on...
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Prospective Study on the Incidence of Postoperative Venous Thromboembolism in Korean Patients with Colorectal Cancer

Lee E, Kang SB, Choi SI, Chun EJ, Kim MJ, Kim DW, Oh HK, Ihn MH, Kim JW, Bang SM, Lee JO, Kim YJ, Kim JH, Lee JS, Lee KW

PURPOSE: Pharmacologic thromboprophylaxis is routinely recommended for Western cancer patients undergoing major surgery for prevention of venous thromboembolism (VTE). However, it is uncertainwhetherroutine administration of pharmacologic thromboprophylaxis is necessary in...
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Erratum: Coronary Stent on Coronary CT Angiography: Assessment with Model-Based Iterative Reconstruction Technique

Lee E, Kim YK, Chun EJ, Choi SI

The publisher wishes to apologize for incorrectly displaying Fig. 1, Fig. 2, Fig. 4, and Fig. 5.
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Coronary Stent on Coronary CT Angiography: Assessment with Model-Based Iterative Reconstruction Technique

Lee E, Kim YK, Chun EJ, Choi SI

PURPOSE: To assess the performance of model-based iterative reconstruction (MBIR) technique for evaluation of coronary artery stents on coronary CT angiography (CCTA). MATERIALS AND METHODS: Twenty-two patients with coronary stent implantation...
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Prediction of Intimal Tear Site by Computed Tomography in Acute Aortic Dissection Type A

Kim JS, Park KH, Lim C, Kim DJ, Jung Y, Shin YC, Choi SI, Chun EJ, Yoo JY

BACKGROUND AND OBJECTIVES: Preoperative identification of intimal tear site in acute type A dissection will help procedural planning. The objective of this study was to determine the key findings of...
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Coexistent Coronary Artery Disease or Myocardial Bridging in Patients with Hypertrophic Cardiomyopathy Using Coronary CT Angiography

Lee JH, Chun EJ, Kim YK, Yoo JY, Choi SI, Choi DJ

PURPOSE: To evaluate the prevalence of coexistent coronary artery disease (CAD) or myocardial bridging (MB) in patients with hypertrophic cardiomyopathy (HCM) using coronary CT angiography (CCTA) and assess the role...
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First-pass Stress Perfusion MR Imaging Findings of Apical Hypertrophic Cardiomyopathy: with Relation to LV Wall Thickness and Late Gadolinium-enhancement

Yoo JY, Chun EJ, Kim YK, Choi SI, Choi DJ

PURPOSE: To evaluate the prevalence and pattern of perfusion defect (PD) on first-pass stress perfusion MR imaging in relation with the degree of left ventricular hypertrophy (LVH) and late gadolinium-enhancement...
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Coronary Vasospastic Angina: Assessment by Multidetector CT Coronary Angiography

Kang KM, Choi SI, Chun EJ, Kim JA, Youn TJ, Choi DJ

OBJECTIVE: We aimed to describe the imaging findings of multidetector CT coronary angiography (MDCTA) in cases of vasospastic angina (VA) and to determine the accuracy of MDCTA in the identification...
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A Novel Biomarker of Coronary Atherosclerosis: Serum DKK1 Concentration Correlates with Coronary Artery Calcification and Atherosclerotic Plaques

Kim KI, Park KU, Chun EJ, Choi SI, Cho YS, Youn TJ, Cho GY, Chae IH, Song J, Choi DJ, Kim CH

DKK1 modulates Wnt signaling, which is involved in the atherosclerosis. However, no data exist regarding the usefulness of measuring serum DKK1 concentration in predicting coronary atherosclerosis. A total of 270...
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MR Imaging Findings of a Primary Cardiac Osteosarcoma and Its Bone Metastasis with Histopathologic Correlation

Ahn S, Choi JA, Chung JH, Choi H, Chun EJ, Choi SI, Kang HS

An osteosarcoma of cardiac origin is extremely rare, and a comprehensive description of MR imaging (MRI) findings of cardiac osteosarcoma and its metastasis in the femur have not been reported...
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Exercise Training Improves Age-Related Myocardial Metabolic Derangement: Proton Magnetic Resonance Spectroscopy Study in the Rat Model

Choi SI, Chang HJ, Chun EJ, Cho SB, Kim ST, Yoon YE, Chang SA, Kim JH, Kim CH, Lim TH

BACKGROUND AND OBJECTIVES: The objective of this study was to determine whether long-term exercise training will improve age-related cardiac metabolic derangement using proton magnetic resonance (MR) spectroscopy. MATERIALS AND METHODS: Young...
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