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CT and MR Imaging Findings of Structural Heart Diseases Associated with Sudden Cardiac Death

Lee JS, Ko SM, Moon HJ, Ahn JH, Kim HJ, Cha SW

Sudden cardiac death is an unexpected death originating from the heart that occurs within an hour of the onset of symptoms. The main cause of sudden cardiac death is arrhythmia;...
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Renal Safety of Repeated Intravascular Administrations of Iodinated or Gadolinium-Based Contrast Media within a Short Interval

Kwon C, Kang KM, Choi YH, Yoo RE, Sohn CH, Han SS, Yoon SH

Objective: We aimed to investigate whether repeated intravascular administration of iodinated contrast media (ICM) or gadolinium-based contrast agents (GBCAs) within a short interval was associated with an increased risk of...
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Diagnosis of Hypersensitivity Pneumonitis: 2020 Clinical Practice Guideline

Park S, Oh YW, Kang EY, Yong HS, Kim C, Lee KY, Hwang SH

Hypersensitivity pneumonitis (HP) is an interstitial lung disease (ILD) characterized by an inhaled inciting antigen that leads to the inflammation of the lung parenchyma and small airway with immunologic reactions....
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Pulmonary Emphysema: Visual Interpretation and Quantitative Analysis

Kim J

Pulmonary emphysema is a cause of chronic obstructive pulmonary disease. Emphysema can be accurately diagnosed via CT. The severity of emphysema can be assessed using visual interpretation or quantitative analysis....
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Update in Diagnosis of Idiopathic Pulmonary Fibrosis and Interstitial Lung Abnormality

Nam BD, Hwang JH

Idiopathic pulmonary fibrosis (IPF), based on the 2018 international clinical practice guidelines, can be diagnosed with a usual interstitial pneumonia (UIP) pattern on high-resolution computed tomography (HRCT) and compatible clinical...
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CT-Guided Microcoil Localization of Small Peripheral Pulmonary Nodules to Direct Video-Assisted Thoracoscopic Resection without the Aid of Intraoperative Fluoroscopy

Huang Zg, Wang Cl, Sun Hl, Li Cd, Gao Bx, Chen H, Yang Mx

Objective: To evaluate the feasibility, safety, and effectiveness of CT-guided microcoil localization of solitary pulmonary nodules (SPNs) for guiding video-assisted thoracoscopic surgery (VATS). Materials and Methods: Between June 2016 and October...
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Diagnostic Performance of Deep Learning-Based Lesion Detection Algorithm in CT for Detecting Hepatic Metastasis from Colorectal Cancer

Kim K, Kim S, Han K, Bae H, Shin J, Lim JS

Objective: To compare the performance of the deep learning-based lesion detection algorithm (DLLD) in detecting liver metastasis with that of radiologists. Materials and Methods: This clinical retrospective study used 4386-slice computed...
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Virtual Monochromatic Image Quality from Dual-Layer Dual-Energy Computed Tomography for Detecting Brain Tumors

Tanoue S, Nakaura T, Nagayama Y, Uetani H, Ikeda O, Yamashita Y

Objective: To evaluate the usefulness of virtual monochromatic images (VMIs) obtained using dual-layer dual-energy CT (DL-DECT) for evaluating brain tumors. Materials and Methods: This retrospective study included 32 patients with brain...
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Early and Atypical Radiologic Presentations of Pulmonary Langerhans Cell Histiocytosis: A Report of Two Cases

Ryu K, Nam BD, Hwang JH, Kim DW, Park YW, Oh HC, Park SB

Pulmonary Langerhans cell histiocytosis (PLCH) is a rare, multi-systemic disease primarily affecting young male adults with a history of smoking. The two patients with PLCH in our report showed relatively...
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Ileocolic Intussusception Accompanied with Inflamed Appendix: 2 Case Reports

Lee HJ, Hwang SM, Won YJ, Woo JY, Lee KH, Hong ME

Intussusception and acute appendicitis are common emergency conditions in children. They should be promptly differentiated in pediatric patients presenting with suggestive symptoms. However, both diseases may occur simultaneously. Herein, we present...
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A Comparative Study of Survivor Outcomes between Preoperative Evaluation Using CT Alone and Combined CT and MRI in Patients with Pancreatic Ductal Adenocarcinoma

Lee JE, Kim SH, Lee SJ, Choi SY, Lee S, Lee BR

Purpose: To compare the recurrence pattern, disease-free survival (DFS), and overall survival (OS) after curative surgery for pancreatic ductal adenocarcinoma (PDAC) in patients who underwent preoperative evaluation with CT alone...
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Isolated Right Ventricular Apical Hypoplasia: A Case Report with 18 Years of Follow Up

Oya T, Kitagawa K, Kokawa T, Nakajima H, Nakamori S, Ogihara Y, Nakata K, Ishida M, Ichikawa Y, Sakuma H

Isolated right ventricular (RV) hypoplasia is a rare congenital anomaly in which the apical trabecular component of the ventricle fails to develop. In severe forms of isolated RV hypoplasia, patients...
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Nasal Septal Deviation and Incidental Paranasal Sinus Opacification: A Role of Computed Tomography

Choi SY, Jeon SY, Rim HS, Kim SW, Min JY

Background and Objectives: The purpose of this study was to investigate the prevalence of incidental paranasal sinus (PNS) opacification in nasal septal deviation (NSD) using computed tomography (CT) and to...
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Prognostic Implications of CT Feature Analysis in Patients with COVID-19: a Nationwide Cohort Study

Jeong YJ, Nam BD, Yoo JY, Kim KI, Kang H, Hwang JH, Kim YH, Lee KS

Background: Few studies have classified chest computed tomography (CT) findings of coronavirus disease 2019 (COVID-19) and analyzed their correlations with prognosis. The present study aimed to evaluate retrospectively the clinical...
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A Three-Dimensional Deep Convolutional Neural Network for Automatic Segmentation and Diameter Measurement of Type B Aortic Dissection

Yu Y, Gao Y, Wei J, Liao F, Xiao Q, Zhang J, Yin W, Lu B

Objective: To provide an automatic method for segmentation and diameter measurement of type B aortic dissection (TBAD). Materials and Methods: Aortic computed tomography angiographic images from 139 patients with TBAD were...
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Computed Tomography Findings Associated with Treatment Failure after Antibiotic Therapy for Acute Appendicitis

Hong W, Kim MJ, Lee SM, Ha HI, Park HC, Yeo SG

Objective: To identify the CT findings associated with treatment failure after antibiotic therapy for acute appendicitis. Materials and Methods: Altogether, 198 patients who received antibiotic therapy for appendicitis were identified by...
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Analysis of Aspiration Risk Factors in Severe Trauma Patients: Based on Findings of Aspiration Lung Disease in Chest Computed Tomography

Heo GJ, Lee J, Choi WS, Hyun SY, Cho JS

Purpose The present study will identify risk factors for aspiration in severe trauma patients by comparing patients who showed a sign of aspiration lung disease on chest computed tomography (CT) and...
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Association between the Thigh Muscle and Insulin Resistance According to Body Mass Index in Middle-Aged Korean Adults

Heo JE, Shim JS, Lee H, Kim HC

BackgroundWe examined the associations between thigh muscle area (TMA) and insulin resistance (IR) according to body mass index (BMI) in middle-aged Korean general population.MethodsTMA was measured using quantitative computed tomography...
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Korean ureter length: A computed tomography–based study

Jung SI, Park HS, Yu MH, Kim YJ, Lee H, Choi WS, Park HK, Kim HG, Paick SH

Purpose: We measured ureter length in healthy Koreans using reformatted computed tomography (ULCT) and found ways to indirectly estimate ureter length by measuring LLCT, the length between the ureteropelvic junction...
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Small Solitary Ground-Glass Nodule on CT as an InitialManifestation of Coronavirus Disease 2019 (COVID-19)Pneumonia

Xia T, Li J, Gao J, Xu X

The 2019 novel coronavirus (2019-nCoV) outbreak in Wuhan, Hubei Province, China in 2019 led to large numbers of people being infected and developing atypical pneumonia (coronavirus disease 2019, COVID-19). Typical imaging...
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