A5034707680- Lung Cancer Diagnosis and Treatment
- Cardiac Imaging and Diagnostics
- Advanced MRI Techniques and Applications
- COVID-19 diagnosis using AI
- Radiomics and Machine Learning in Medical Imaging
- Lung Cancer Treatments and Mutations
- Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
- Medical Imaging and Pathology Studies
- COVID-19 Clinical Research Studies
- Advanced X-ray and CT Imaging
- Cerebrovascular and Carotid Artery Diseases
- Coronary Interventions and Diagnostics
- Cardiovascular Function and Risk Factors
- Venous Thromboembolism Diagnosis and Management
- Acute Myocardial Infarction Research
- Medical Imaging Techniques and Applications
- Ultrasound in Clinical Applications
- Tracheal and airway disorders
- Radiation Dose and Imaging
- Lung Cancer Research Studies
- Functional Brain Connectivity Studies
- Myasthenia Gravis and Thymoma
- Heart Failure Treatment and Management
- Vascular anomalies and interventions
- COVID-19 and healthcare impacts
Chonnam National University Hospital
2016-2025
Chonnam National University Hwasun Hospital
2005-2023
Chonnam National University
1997-2020
Cancer Clinic
2006
This study presents a preliminary report on the chest radiographic and computed tomography (CT) findings of 2019 novel coronavirus disease (COVID-19) pneumonia in Korea.
To evaluate and classify the various drainage patterns of pulmonary veins as depicted with thin-section chest computed tomography (CT).Thin-section (2.5-mm collimation) contrast material-enhanced CT scans 201 consecutive patients obtained over a 3-month period for diagnosis embolism (n = 197), vein stenosis 2), or aortic injury 2) were routinely reviewed in transverse (if necessary) coronal coronal-oblique imaging planes. A classification was formulated based on both number venous ostia each...
Abstract Gefitinib, an epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor, has a response rate of 10% to 20% in refractory non–small cell lung carcinoma. Although female gender, adenocarcinoma, and never having smoked are possible markers favorable response, mutations the EGFR gene have also been reported be highly significant predictors response. Seventy patients with relapsed carcinoma were enrolled Expanded Access Program. After drug became available commercially, 28 more...
Background Multicenter studies may be required for establishing guidelines safe usage of iodinated contrast media (ICM). Purpose To identify the prevalence, patterns, risk factors, and preventive measures ICM-related hypersensitivity reactions (HSRs). Materials Methods Between March 2017 October 2017, a total 196 081 patients who underwent ICM administration were enrolled from seven participating institutions. The occurrence HSRs baseline patient information recorded. χ2 Student t test...
Background Since vaccines against COVID-19 became available, rare breakthrough infections have been reported despite their high efficacies. Purpose To evaluate the clinical and imaging characteristics of patients with compare them those unvaccinated COVID-19. Materials Methods In this retrospective multicenter cohort study, authors analyzed patient (aged ≥18 years) data from three centers that were registered in an open repository for between June August 2021. Hospitalized baseline chest...
Although radiology reports are commonly used for lung cancer staging, this task can be challenging given radiologists' variable reporting styles as well reports' potentially ambiguous and/or incomplete staging-related information.
To retrospectively establish normal values for pulmonary vein diameter, cross-sectional area, and shape depicted at computed tomography (CT).Institutional review board waived patient consent requirement approved the study. Thin-section contrast material-enhanced spiral chest CT scans in 104 patients, 68 women 36 men (age range, 19-86 years; mean, 49 years) referred to exclude embolism, were reviewed. Short-axis diameter area of four major veins (right inferior superior, left superior)...
To evaluate the effectiveness of simple percutaneous catheter drainage in treatment postoperative lymphocele.Percutaneous 23 symptomatic lymphoceles was performed with ultrasonographic (US) guidance 20 patients who had undergone radical pelvic lymphadenectomy because uterine malignancy. All were diagnosed on basis biochemical and cytologic findings aspirated fluid. The removed when amount daily less than 10 mL per day lymphocele seen at imaging to have resolved. Follow-up US 1, 3, 6 months...
To study the extent of pulmonary involvement in coronavirus 19 (COVID-19) with quantitative CT and to assess impact disease burden on opacity visibility chest radiographs.This retrospective included 20 pairs scans same-day radiographs from 17 patients COVID-19, along controls. All opacities were semiautomatically segmented images, producing an anteroposterior projection image match corresponding frontal radiograph. The lung opacification mass (QCTmass) was defined as (opacity attenuation...
Background The association between interstitial lung abnormalities (ILAs) and long-term outcomes has not been reported in Asian health screening populations. Purpose To investigate ILA prevalence an cohort determine rates risks for progression, cancer development, mortality within the 10-year follow-up. Materials Methods This observational, retrospective multicenter study included patients aged 50 years or older who underwent chest CT at three centers over a 4-year period (2007-2010). status...
Background Few reports have evaluated the effect of SARS-CoV-2 variant and vaccination on clinical imaging features COVID-19. Purpose To evaluate compare prevalence infections by SARS-CoV-2. Materials Methods Consecutive adults hospitalized for confirmed COVID-19 at three centers (two academic medical one community hospital) registered in a nationwide open data repository between August 2021 March 2022 were retrospectively included. All patients had available chest radiographs or CT images....
Coronary artery calcification (CAC) on lung cancer screening low-dose chest CT (LDCT) is a cardiovascular risk marker. South Korea was the first Asian country to initiate national LDCT program, although CAC-related outcomes are poorly explored.
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
Thoracic actinomycosis is an uncommon, chronic suppurative bacterial infection caused by actinomyces species, especially Actinomyces israelii.It usually seen in immunocompetent patients with respiratory disorders, poor oral hygiene, alcoholism and debilitating diseases.We illustrate the radiological manifestations of thoracic actinomycoses various involved areas thorax.Thoracic can be radiologically divided into parenchymal type, airway type including bronchiectasis, endobronchial form,...
The purpose of this study was to evaluate gray matter (GM) and white (WM) volume alterations in whole-brain structures patients with schizophrenia healthy controls using voxel-based morphometry (VBM), further assess the correlation between GM WM variations symptom severity schizophrenia. A total 22 age-matched participated. Magnetic resonance image data were processed SPM8 software diffeomorphic anatomical registration via an exponentiated Lie algebra (DARTEL) algorithm. Patients exhibited...
IBM Watson for Oncology (WFO) is a cognitive computing system helping physicians quickly identify key information in patient's medical record, surface relevant evidence, and explore treatment options. This study assessed the possibility of using WFO clinical lung cancer patients.We evaluated level agreement between multidisciplinary team (MDT) cancer. From January to December 2018, newly diagnosed cases Chonnam National University Hwasun Hospital were retrospectively examined version 18.4...
Background: The importance of including thoracic aortic calcification (TAC), in addition to coronary artery (CAC), prognostic assessments has been difficult determine, partly due greater challenge performing standardized TAC assessments. Objective: To evaluate long-term implications assessed using artificial intelligence (AI)-based quantification on routine chest CT a screening population. Methods: This retrospective study included 7404 asymptomatic individuals (median age, 53.9 years; 5875...
To evaluate the diagnostic accuracy of chest computed tomography (CT) in prediction a nonbronchial systemic arterial supply patients with massive hemoptysis.Forty consecutive hemoptysis underwent contrast material-enhanced CT. Massive was defined as expectoration 300-600 mL blood per day. Two CT features were considered to be suggestive supply: (a) pleural thickness more than 3 mm adjacent parenchymal lesion and (b) enhancing vascular structures within extrapleural fat layer. Conventional...
The incidence of Alzheimer's disease (AD) has been increasing each year, and a defective hippocampus primarily associated with an early stage AD. However, the effect donepezil treatment on hippocampus-related networks is unknown. Thus, in current study, we evaluated hippocampal white matter (WM) connectivity patients early-stage AD before after using probabilistic tractography, further determined WM integrity changes brain volume. Ten (mean age = 72.4 ± 7.9 years; seven females three males)...
The transition to menopause is associated with various physiological changes, including alterations in brain structure and function. However, menopause-related structural functional changes are poorly understood. purpose of this study was not only compare the volume between premenopausal postmenopausal women, but also evaluate connectivity targeted regions atrophy women. Each 21 women underwent magnetic resonance imaging (MRI). T1-weighted MRI resting-state data were used seed-based...
Abstract This study aimed to investigate real-time early detection of metabolic alteration in a rat model with acute myocardial ischemia-reperfusion (AMI/R) injury and necrosis, as well its correlation intracellular pH level using vivo hyperpolarized [1- 13 C] pyruvate magnetic resonance spectroscopy (MRS). Hyperpolarized C MRS was performed on the myocardium 8 sham-operated control rats AMI/R injury, AMI-induced necrosis. Also, correlations levels metabolites were analyzed by Spearman’s...
An artificial intelligence (AI) model using chest radiography (CXR) may provide good performance in making prognoses for COVID-19.We aimed to develop and validate a prediction CXR based on an AI clinical variables predict outcomes patients with COVID-19.This retrospective longitudinal study included hospitalized COVID-19 at multiple medical centers between February 2020 October 2020. Patients Boramae Medical Center were randomly classified into training, validation, internal testing sets (at...