A5049177901- Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
- Tracheal and airway disorders
- Medical Imaging and Pathology Studies
- Lung Cancer Diagnosis and Treatment
- Myasthenia Gravis and Thymoma
- Pleural and Pulmonary Diseases
- Pericarditis and Cardiac Tamponade
- Vascular anomalies and interventions
- Vascular Anomalies and Treatments
- Neuroendocrine Tumor Research Advances
- Radiomics and Machine Learning in Medical Imaging
- Congenital Diaphragmatic Hernia Studies
- Transplantation: Methods and Outcomes
- Sarcoidosis and Beryllium Toxicity Research
- Salivary Gland Tumors Diagnosis and Treatment
- Respiratory viral infections research
- Antifungal resistance and susceptibility
- Coronary Artery Anomalies
- Advanced X-ray and CT Imaging
- Sarcoma Diagnosis and Treatment
- Gastrointestinal disorders and treatments
- Soft tissue tumor case studies
- Infectious Diseases and Tuberculosis
- IgG4-Related and Inflammatory Diseases
- Medical Imaging Techniques and Applications
Hanyang University Medical Center
2002-2025
Hanyang University Seoul Hospital
2004-2023
Seoul National University Hospital
2020
Hanyang University
2004-2019
Anyang University
2017
Daejeon University
2005
Hallym University
2005
Duke Medical Center
2000-2003
Duke University Hospital
2000-2003
Asan Medical Center
2002
Purpose: To compare the efficacy of low-dose and standard-dose computed tomography (CT) for diagnosis ureteral stones. Material Methods: Unenhanced helical CT was performed with both a standard dose (260 mAs, pitch 1.5) low (50 in 121 patients suspected having acute renal colic. The two studies were prospectively independently interpreted presence location stones, abnormalities unrelated to stone disease, identification secondary signs, i.e. hydronephrosis perinephric stranding, tissue rim...
We performed this study to describe the CT features of idiopathic multilocular thymic cysts with clinical and histopathologic correlation.Multilocular typically manifest on as unilocular or cystic masses, often soft-tissue attenuation components. cannot be used distinguish neoplastic from nonneoplastic
Bronchiectasis is one of the common chronic respiratory diseases and associated with morbidity mortality. However, neither its prevalence nor etiology well-defined. We aimed to estimate risk factors bronchiectasis in adults. In a retrospective study, we analyzed radiologic findings on chest computed tomography (CT) images performed as part health-screening program. From January December 2008, 1,409 (24.6%) 5,727 participants screening program health promotion center at university hospital...
The purpose of this essay is to illustrate the CT findings variable benign tumors tracheobronchial tree and correlate pathologic in 17 patients.The tracheal were eccentric, well-defined, polypoid masses all cases. endobronchial confined within bronchus cases, atelectasis or pneumonia distal parenchyma was frequently associated. Of six hamartomas, one a fatty mass, two nodules with calcification. others soft-tissue-density nodules. lipomas manifested as fat density on scans both other...
The purpose of this study was to describe the CT findings lower respiratory tract involvement by relapsing polychondritis.The most common manifestations were increased attenuation and smooth thickening airway walls. Tracheal or bronchial stenosis less common. Airway collapse lobar air trapping seen in half patients examined with expiratory CT.
PURPOSE: To evaluate the radiographic and computed tomographic (CT) findings of patients with thoracic Behçet syndrome. MATERIALS AND METHODS: Chest radiographs CT scans nine syndrome were retrospectively reviewed. Findings compared. RESULTS: Radiographs showed mediastinal widening in five (56%), air-space consolidation lung mass three (33%). that was due to thrombosis four (44%) or narrowing superior vena cava one [11%], which caused edema; (seen on both scans) pulmonary hemorrhage...
To assess whether computed tomography (CT) conversion across different scan parameters and manufacturers using a routable generative adversarial network (RouteGAN) can improve the accuracy variability in quantifying interstitial lung disease (ILD) deep learning-based automated software.This study included patients with ILD who underwent thin-section CT. Unmatched CT images obtained scanners from four (vendors A-D), standard- or low-radiation doses, sharp medium kernels were classified into...
Pulmonary Tuberculosis: Another Disease Showing Clusters of Small NodulesJeong-Nam Heo1, Yo Won Choi, Seok Chol Jeon and Choong Ki ParkAudio Available | Share
Abstract Background To introduce a prospective cohort for rheumatoid arthritis (RA) patients with interstitial lung disease (ILD) and to identify their clinical features in comparison RA without ILD. Methods Using multidisciplinary collaborative approach, single-center ILD (RA-ILD) was established May 2017, enrolment data from 2017 March 2021 were used compare the of (RA-non ILD). Multivariable logistic regression analysis factors associated patients. Results Among 148 RA-ILD 410 RA-non...
OBJECTIVE. We recently observed patients in whom the superior pericardial recess extended cephalad ("high-riding") into right paratracheal region. In these patients, differentiation from mediastinal lymphadenopathy or mass was difficult. The purpose of this study to assess prevalence and CT features high-riding recess. CONCLUSION. Narrow-collimation with multiplanar reformations useful for confidently diagnosing a distinguishing it pathologic lesions.
To evaluate patients who have a paradoxical response (development of new opacities) to treatment for tuberculous pleural effusion not related acquired immunodeficiency syndrome.In 16 patients, follow-up chest radiographs (n = 16) and initial 2) 9) computed tomographic (CT) scans the were retrospectively reviewed by two radiologists. Patient records results percutaneous needle aspiration and/or biopsy 6) one radiologist.Eighteen episodes lesion development identified on in patients. Each...
The aim of the study was to evaluate characteristics coronary artery-to-pulmonary artery fistula (CPAF) found by computed tomography (CT) angiography.Among 10,121 cases CT angiography performed for 7 years, we 32 CPAF. We retrospectively evaluated demographics, clinical symptoms, and anatomical such as origin, number origins, course, opening site fistula, presence aneurysmal changes (defined dilatation 1.5 times diameter origin). also categorized openings according size compared with that...
The purpose of this study was to correlate the extent computed tomographic (CT) findings with severity respiratory dysfunction in lung transplant recipients bronchiolitis obliterans syndrome (BOS). Eighty-nine conventional and 61 thin-section CT scans performed 44 (17 bilateral, 27 single) BOS were reviewed for mosaic attenuation, degree bronchial dilation, thickening, central peripheral bronchiectasis, mucus plugging, air trapping. Findings on correlated stage bilateral single-lung...
Purpose The purpose of this work was to assess the utility low-dose spiral CT for three-dimensional imaging central airways. Method Spiral performed in 15 patients using two tube currents (50 and 240 mA), producing 30 data sets. Surface-rendered virtual bronchoscopy (VB) shaded surface display (SSD) images were assessed by three radiologists image quality. also asked compare matched pairs each 50 mA VB SSD images, blindly select image, record differences diagnostic quality between images....
To propose a hypothesis about the embryogenesis of subaortic left innominate vein, authors reviewed radiologic features 14 patients diagnosed with vein made by computed tomography or magnetic resonance imaging scan. The retrospectively analyzed level aortic arch, associated arch anomalies, and presence absence obliteration prevascular space. A high was seen in 10 patients, five cervical, two right and, one double arch. space occupied great arteries, both all In remaining four normal...
Acute Diffuse Phlegmonous Esophagogastritis: Radiologic DiagnosisCheolkyu Jung, Yo Won Choi, Seok Chol Jeon and Sang ChungAudio Available | Share
Abstract Costal cartilages of 10 controls and 12 patients with Tietze's syndrome ( n = 6), deformed (exaggerated bowing) cartilage 4), focal enlargement 1), cancer‐invaded 1) were examined ultrasonography. In controls, ultrasonography detected 237 240 costal (98.8%) 58 105 intercartilage connections (55%) three variations. Correlation CT was available in 7 (1 syndrome, 4 deformities, 1 enlargement, cancer) among 8 whose results known to the sonographer. Sonography showed normal 4) or...
Pleuropulmonary Endometriosis: CT-Pathologic CorrelationYoung-Rang Lee, Yo Won Choi, Seok Chol Jeon, Seung Sam Paik and Jung-Ho KangAudio Available | Share