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Preparation, Technique, and Imaging of Computed Tomography/Magnetic Resonance Enterography

Kim MJ

CT enterography and magnetic resonance (MR) enterography are widely used imaging modalities used to examine the small bowel. These radiologic tests are distinguished from routine abdominopelvic CT and MRI by...
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Inflammatory Endobronchial Myofibroblastic Tumor: A Case Report

Nam SW, Jeong YJ, Lee G, Lee JW, Eom JS, Cho JS, Park WY, Park SM

Inflammatory myofibroblastic tumor is a rare benign lesion that accounts for 0.04–1% of all lung tumors and usually appears as a solitary pulmonary nodule or mass. Here, we report the...
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Giant Intramyocardial Aneurysm in a Patient with Intercoronary Communication between the Left Circumflex Artery and Right Coronary Artery: A Case Report

Lee YH, Park NH, Park JY, Kim SJ

Coronary artery aneurysm is a rare disease. It occurs in the epicardial space, mostly along the course of major coronary arteries. Here, we report a case of a giant incidental...
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Simultaneous Assessment of Left Ventricular Function and Coronary Artery Anatomy by Third-generation Dual-source Computed Tomography Using a Low Radiation Dose

Lee JW, Nam KJ, Kim JY, Jeong YJ, Lee G, Park SM, Lim SJ, Choo KS

BACKGROUND: To assess left ventricular function and coronary artery simultaneously by third-generation dual-source computed tomography (CT) using a low radiation dose. METHODS: A total of 48 patients (36 men, 12 women;...
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Myocardial Coverage and Radiation Dose in Dynamic Myocardial Perfusion Imaging Using Third-Generation Dual-Source CT

Takafuji M, Kitagawa K, Ishida M, Goto Y, Nakamura S, Nagasawa N, Sakuma H

OBJECTIVE: Third-generation dual-source computed tomography (3rd-DSCT) allows dynamic myocardial CT perfusion imaging (dynamic CTP) with a 10.5-cm z-axis coverage. Although the increased radiation exposure associated with the 50% wider scan...
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Contrast Echocardiography in two-dimensional left ventricular measurements: comparison with 256-row multi-detector computed tomography as a reference standard in Beagles

Kim J, Kim S, Lee Y, Yoon H, Eom K

Unenhanced echocardiography (UE), commonly used in veterinary practice, is limited by left ventricular (LV) foreshortening and observer dependency. Contrast echocardiography (CE) was used to compare two-dimensional (2D) LV measurements made...
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Stroke Caused by Cerebral Air Embolism after Central Venous Catheter Removal: A Case Report

Kwon KE, Park NH, Kim SJ, Park JY

Cerebral air embolism is a rare, potentially catastrophic iatrogenic complication of central venous catheter removal. Cerebral air embolism can lead to serious neurological sequelae, resulting from cerebral infarction. Early radiological...
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Relationship between Epicardial Fat Accumulation and Left Atrial Reverse Remodeling after Catheter Ablation of Atrial Fibrillation

Lee JY, Oh YW, Kim YH, Shim J, Hwang SH

PURPOSE: To demonstrate the relationship between epicardial fat accumulation and left atrial reverse remodeling by cardiac multi-detector CT (MDCT) after catheter ablation of atrial fibrillation (AF). MATERIALS AND METHODS: Seventy-six patients...
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Lung Cancer Screening with Low-Dose CT: Current Status in Other Countries

Goo JM

Lung cancer is the leading cause of death from cancer worldwide. The most effective way to reduce lung cancer mortality is early detection and treatment. Two large randomized controlled trials...
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CT Evaluation for Clinical Lung Cancer Staging: Do Multiplanar Measurements Better Reflect Pathologic T-Stage than Axial Measurements?

Park S, Lee SM, Choe J, Lee JG, Lee SM, Do KH, Seo JB

OBJECTIVE: To retrospectively investigate whether tumor size assessment on multiplanar reconstruction (MPR) CT images better reflects pathologic T-stage than evaluation on axial images and evaluate the additional value of measurement...
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Accuracy of Model-Based Iterative Reconstruction for CT Volumetry of Part-Solid Nodules and Solid Nodules in Comparison with Filtered Back Projection and Hybrid Iterative Reconstruction at Various Dose Settings: An Anthropomorphic Chest Phantom Study

Kim SK, Kim C, Lee KY, Cha J, Lim HJ, Kang EY, Oh YW

OBJECTIVE: To investigate the accuracy of model-based iterative reconstruction (MIR) for volume measurement of part-solid nodules (PSNs) and solid nodules (SNs) in comparison with filtered back projection (FBP) or hybrid...
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Volumetric Severity Assessment of Ebstein Anomaly Using Three-Dimensional Cardiac CT: A Feasibility Study

Goo HW

OBJECTIVE: The purpose of this study was to demonstrate the feasibility of using cardiac CT to perform volumetric severity assessment of the Ebstein anomaly. MATERIALS AND METHODS: Six children with Ebstein...
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Diagnostic performance of multidetector computed tomography for symptomatic lymphoceles in kidney transplant recipients

Jun H, Hwang SH

BACKGROUND: To evaluate the size of a postoperative lymphocele in the coronal and axial reconstruction planes using multidetector computed tomography (MDCT) in kidney transplantation recipients. METHODS: We evaluated 92 recipients who...
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Changes in Right Ventricular Volume, Volume Load, and Function Measured with Cardiac Computed Tomography over the Entire Time Course of Tetralogy of Fallot

Goo HW

OBJECTIVE: To characterize the changes in right ventricular (RV) volume, volume load, and function measured with cardiac computed tomography (CT) over the entire time course of tetralogy of Fallot (TOF). MATERIALS...
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Multidetector CT in Blunt Abdominal Trauma: Imaging Findings and Pitfalls

Lee J, Ahn JH

Owing to the developments in imaging modalities, imaging has become an essential element in the early evaluation of and decision-making algorithm for patients with trauma. In particular, CT technology has...
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Coronary CT Angiography with Knowledge-Based Iterative Model Reconstruction for Assessing Coronary Arteries and Non-Calcified Predominant Plaques

Li T, Tang T, Yang L, Zhang X, Li X, Luo C

OBJECTIVE: To assess the effects of iterative model reconstruction (IMR) on image quality for demonstrating non-calcific high-risk plaque characteristics of coronary arteries. MATERIALS AND METHODS: This study included 66 patients (53...
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Prevalence of Decreased Myocardial Blood Flow in Symptomatic Patients with Patent Coronary Stents: Insights from Low-Dose Dynamic CT Myocardial Perfusion Imaging

Li Y, Yuan M, Yu M, Lu Z, Shen C, Wang Y, Lu B, Zhang J

OBJECTIVE: To study the prevalence and clinical characteristics of decreased myocardial blood flow (MBF) quantified by dynamic computed tomography (CT) myocardial perfusion imaging (MPI) in symptomatic patients without in-stent restenosis. MATERIALS...
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Cervical Spine CT Using Spectral Shaping: Can It Be a Solution to Overcome Artifacts in the Lower Cervical Spinal Region?

Lee SM, Choo HJ, Lee SJ, Kim SK, Lee IS, Kim DW, Baek JW, Heo YJ

OBJECTIVE: To investigate the image quality, radiation dose, and intermodality agreement of cervical spine CT using spectral shaping at 140 kVp by a tin filter (Sn140-kVp) in comparison with those...
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CT Image Conversion among Different Reconstruction Kernels without a Sinogram by Using a Convolutional Neural Network

Lee SM, Lee JG, Lee G, Choe J, Do KH, Kim N, Seo JB

OBJECTIVE: The aim of our study was to develop and validate a convolutional neural network (CNN) architecture to convert CT images reconstructed with one kernel to images with different reconstruction...
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Clinical Applications of Wide-Detector CT Scanners for Cardiothoracic Imaging: An Update

Kang EJ

Technical developments in multidetector computed tomography (CT) have increased the number of detector rows on the z-axis, and 16-cm wide-area-coverage CT scanners have enabled volumetric scanning of the entire heart....
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