A5086152357- Cardiac Imaging and Diagnostics
- Advanced MRI Techniques and Applications
- Cardiovascular Function and Risk Factors
- Advanced X-ray and CT Imaging
- Cardiac Valve Diseases and Treatments
- Coronary Interventions and Diagnostics
- Cardiomyopathy and Myosin Studies
- Acute Myocardial Infarction Research
- Cardiac Structural Anomalies and Repair
- Coronary Artery Anomalies
- Congenital Heart Disease Studies
- Cardiac tumors and thrombi
- Cerebrovascular and Carotid Artery Diseases
- Cardiovascular Effects of Exercise
- Breast Lesions and Carcinomas
- Cardiovascular Disease and Adiposity
- Vascular anomalies and interventions
- Radiation Dose and Imaging
- Aortic Disease and Treatment Approaches
- Aortic aneurysm repair treatments
- Infective Endocarditis Diagnosis and Management
- Tracheal and airway disorders
- Trauma Management and Diagnosis
- Vasculitis and related conditions
- Cardiac Arrhythmias and Treatments
Samsung Medical Center
2015-2024
Sungkyunkwan University
2015-2024
Imaging Center
2010-2022
Seoul National University Bundang Hospital
2021
East Asia School of Theology
2021
Yonsei University
2019-2020
Severance Hospital
2020
Hallym University
2017
Chuncheon Sacred Heart Hospital
2017
Soonchunhyang University
2017
Despite complete interruption of antegrade coronary artery flow in the setting a chronic total occlusion (CTO), clinical recognition myocardial infarction is often challenging. Using cardiac MRI, we investigated frequency and extent patients with CTO, assessed their relationship regional systolic function angiographic collateral flow.We included 170 consecutive (median age, 62 years) angiographically documented CTO. Regional late gadolinium enhancement wall motion score index were by MRI use...
Takayasu's ArteritisAssessment of Disease Activity with Contrast-Enhanced MR ImagingYeon Hyeon Choe1, Boo-Kyung Han1, Eun-Mi Koh2, Duk-Kyung Kim3, Young Soo Do1 and Won Ro Lee3Audio Available | Share
Objective: The purpose of this study was to present the computed tomography (CT) findings pulmonary artery sarcoma in 7 patients with a focus on distinguishing features embolic disease. Methods: For 9 years from December 1993 November 2002, we treated pathologically proven sarcoma, and during 2 2000 40 acute (n = 33) or chronic 7) embolism. In these patients, embolism diagnosed serial CT clinical findings. Two chest radiologists, blinded diagnoses, independently reviewed scans all 47 random...
The objective of our study is to describe the mammographic and sonographic appearances granulomatous mastitis.Granulomatous mastitis can mimic breast carcinoma clinically mammographically, but appearance multiple clustered, often contiguous tubular hypoechoic lesions that are sometimes associated with a large mass should suggest possibility mastitis.
A phase I dose-escalation clinical trial of peritumoral injections interleukin 12 (IL-12)-transduced autologous fibroblasts was performed in patients with disseminated cancer for whom effective treatment does not exist. The goals this study were to assess the safety and toxicities as well efficacy, ancillarily immunomodulatory effects, IL-12 gene transfer. Primary dermal cultured from transduced retroviral vector carrying human genes (p35 p40) neomycin phosphotransferase (TFG-hIL-12-Neo)....
We incorporated clay modeling into gross anatomy and neuro-anatomy courses to help students understand cross-sectional anatomy. By making models, cutting them comparing cut surfaces CT MR images, learned how two-dimensional images were created from three-dimensional structure of human organs. Most in a group responded positively this approach, their average score on examination was higher than that did not use models. Clay appears be useful supplement conventional or radiologic education. It...
Purpose To evaluate coronary arterial lesions and to assess their correlation with clinical findings in patients Takayasu arteritis (TA) by using computed tomographic (CT) angiography. Materials Methods This retrospective study was approved the hospital internal review board, informed consent waived. A total of 111 consecutive TA (97 female, 14 male; mean age, 44 years ± 13.8 [standard deviation]; age range, 14–74 years) underwent CT angiography arteries aorta 128-section dual-source CT....
Background— We developed a model that predicts difficulty of percutaneous coronary intervention for chronic total occlusion (CTO) using computed tomographic angiography. Methods and Results— A 684 CTO lesions with preprocedural angiography were enrolled from 4 centers. Data randomly divided into derivation validation datasets at 2:1 ratio. The end point was successful guidewire crossing ≤30 minutes, which met in 50%. KCCT (Korean Multicenter CT Registry) score based on independent predictors...
Early diagnosis and treatment of Takayasu arteritis is important in prevention serious complications. Spin-echo magnetic resonance imaging (MRI) can depict early wall thickening the aorta cine MRI evaluate aortic valve function. Significant enhancement around carotid arteries observed on postcontrast MR images acute phase arteritis. In chronic phase, contrast stronger than myocardium suggests activity disease. Breath-hold contrast-enhanced three-dimensional angiography very effective...
Background. This study evaluated the accuracy of magnetic resonance imaging (MRI) for estimating residual tumor size after neoadjuvant chemotherapy in patients with locally advanced breast cancer and assessed whether pattern on MRI influenced measurement size. Patients methods. Fifty who received doxorubicin docetaxel were before chemotherapy. We compared measured by pathologically determined investigated influence (shrinkage, nest or rim, mixed) pathologic characteristics measurement....
Immune dysregulation, Polyendocrinopathy, Enteropathy X-linked (IPEX) syndrome is a unique example of primary immunodeficiency characterized by autoimmune manifestations due to defective regulatory T (Treg) cells, in the presence FOXP3 mutations. However, symptoms phenotypically resembling IPEX often occur absence detectable The cause this “IPEX-like” presently remains unclear. To investigate whether defect Treg cells sustains immunological dysregulation IPEX-like patients, we measured...
Apical hypertrophic cardiomyopathy (ApHCM) is thought to have a favourable clinical outcome, compared with other types of HCM. We sought investigate the and anatomical differences in cardiovascular imaging between ApHCM non-ApHCM.A total 350 patients diagnosed HCM underwent magnetic resonance (CMR) echocardiography. All enrolled subjects were prospectively followed up for adverse outcomes. Eighty-five classified as ApHCM. On CMR, amount proportion late gadolinium enhancement (LGE) well left...
Left ventricular non-compaction (LVNC) is an unclassified cardiomyopathy and there no consensus on the diagnosis of LVNC. The aims this study were to establish quantitative methods diagnose LVNC using cardiovascular magnetic resonance (CMR) suggest refined semi-quantitative This retrospective included 145 subjects with mild severe trabeculation left ventricle myocardium [24 patients isolated LVNC, 33 non-isolated 30 dilated (DCM) (DCMNC), 27 DCM, 31 healthy control trabeculation]. (LV)...
It has been reported that left ventricular (LV) myocardial strain and late gadolinium enhancement (LGE) on cardiovascular magnetic resonance (CMR) imaging have prognostic value in patients with heart failure (HF). However, previous studies included various systolic functions. This study aimed to investigate the of LV LGE CMR idiopathic dilated cardiomyopathy (DCM) reduced ejection fraction (EF < 40%). From a prospectively followed cohort who underwent between November 2008 December 2015,...