- Hepatocellular Carcinoma Treatment and Prognosis
- Liver Disease Diagnosis and Treatment
- MRI in cancer diagnosis
- Liver Disease and Transplantation
- Advanced MRI Techniques and Applications
- Pancreatic and Hepatic Oncology Research
- Radiomics and Machine Learning in Medical Imaging
- Gastrointestinal disorders and treatments
- Pediatric Urology and Nephrology Studies
- Genetic and Kidney Cyst Diseases
- Pancreatitis Pathology and Treatment
- Medical Imaging Techniques and Applications
- Bone fractures and treatments
- Gallbladder and Bile Duct Disorders
- Endometrial and Cervical Cancer Treatments
- Ovarian cancer diagnosis and treatment
- Endometriosis Research and Treatment
- Helicobacter pylori-related gastroenterology studies
- Uterine Myomas and Treatments
- Cholangiocarcinoma and Gallbladder Cancer Studies
- Gastrointestinal Tumor Research and Treatment
- Orthopedic Surgery and Rehabilitation
- Pelvic and Acetabular Injuries
- Cardiovascular Disease and Adiposity
- Pneumocystis jirovecii pneumonia detection and treatment
Korea University
2007-2024
Korea University Medical Center
2015-2024
University of California, Los Angeles
2020-2024
Chung-Ang University
2022
Inje University Sanggye Paik Hospital
2021
Weatherford College
2019
Yonsei Sarang Hospital
2014-2017
National University College
2017
Asan Medical Center
2017
Seoul National University
2017
The purpose of this article is to describe the "pseudo washout" sign high-flow hepatic hemangioma that mimics hypervascular tumor on gadoxetic acid-enhanced MRI.High-flow hemangiomas might show relatively low signal intensity because acid contrast uptake in surrounding normal liver parenchyma during equilibrium (3-minute delay) phase. Such findings are called pseudo washout and can mimic tumors. However, be diagnosed by observing bright T2-weighted imaging, arterial phase-dominant...
Background Selenoprotein P (SeP) has recently been reported as a novel hepatokine that regulates insulin resistance and systemic energy metabolism in rodents humans. We explored the associations among SeP, visceral obesity, nonalcoholic fatty liver disease (NAFLD). Methods examined serum SeP concentrations subjects with increased fat area (VFA) or accumulation measured computed tomography. Our study included 120 nondiabetic individuals selected from participants of Korean Sarcopenic Obesity...
Purpose The objective of this study was to examine the imaging features classic mass-forming intrahepatic cholangiocarcinoma (MICC) and nonclassic hypervascular MICC on gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid–enhanced magnetic resonance imaging. Methods Twenty pathologically confirmed MICCs were included. Two radiologists retrospectively reviewed characteristics T2-weighted imaging, diffusion-weighted dynamic contrast-enhanced images, hepatobiliary phase (HBP) each MICC....
Background Hepatobiliary phase (HBP) hypointense nodules without arterial hyperenhancement (APHE) at gadoxetic acid-enhanced MRI may indicate hepatocellular carcinoma (HCC) or nonmalignant cirrhosis-associated nodules. Purpose To assess the distribution of pathologic diagnoses HBP APHE and to evaluate clinical imaging features in differentiating their histologic grades. Materials Methods This retrospective multicenter study included analysis-confirmed (≤30 mm) patients with chronic liver...
Purpose To compare the image quality and diagnostic capability in detecting malignant liver tumors of low-dose CT (LDCT, 33% dose) with deep learning–based denoising (DLD) standard-dose (SDCT, 100% model-based iterative reconstruction (MBIR). Materials Methods In this prospective, multicenter, noninferiority study, individuals referred for scans were enrolled from three tertiary referral hospitals between February 2021 August 2022. All conducted using a dual-source scanner dose split into...
Juhyun Jeong, Suk Keu Yeom, In Young Choi, Sang Hoon Cha, Ji Sung Han, Chang Hee Lee, Deuk Jae Sung, Jung-Woo Hyun Bae, Hangseok InSeong Kim, Thomas Benkert, Elisabeth Weiland
Abstract Non-alcoholic steatohepatitis (NASH) is a complex disease consisting of various components including steatosis, lobular inflammation, and ballooning degeneration, with or without fibrosis. Therefore, it difficult to diagnose NASH only one imaging modality. This study was aimed evaluate the feasibility magnetic resonance (MRI) for predicting develop non-invasive multiparametric MR index detection in non-alcoholic fatty liver (NAFLD) patients. prospective included 47 NAFLD patients...
Background Noninvasive diagnostic guidelines for hepatocellular carcinoma (HCC) vary across different global geographic areas, especially regarding criteria about gadoxetic acid-enhanced MRI. Purpose To compare the performance of four international HCC diagnosis and readers' judgment in diagnosing using MRI patients at high risk HCC. Materials Methods This retrospective study included who had not undergone treatment, were HCC, underwent from January 2015 to June 2018 11 tertiary hospitals...
Introduction: Magnetic resonance imaging (MRI) has been shown to outperform computed tomography (CT) in diagnosing hepatocellular carcinoma (HCC), although inconsistencies exist across studies. We compared the performance of CT and gadoxetic acid-enhanced MRI HCC according various guidelines, assess incremental value a second-line examination. Methods: This retrospective multicenter study included patients at risk developing with focal liver lesions (FLLs) ≥10 mm. These underwent both...
The aim of our study was to examine the locational distribution paraspinal structures on MRI and determine any predictable parameters that may be used for identification transitional vertebra (TV). We enrolled 534 patients who underwent their lumbosacral spine. locations structures, such as aortic bifurcation (AB), IVC confluence (IC), right renal artery (RRA), celiac trunk (CT), SMA root (SR), iliolumbar ligament (ILL), were determined using "cross link" in PACS. also assessed morphology...
Background/aims: Abdominal obesity is associated with metabolic syndrome and non-alcoholic fatty liver disease (NAFLD). Although there have been many studies to determine the optimal cutoff points of waist circumference or visceral fat area in screening for syndrome, no reports establish adequate abdominal indices NAFLD. Therefore, we examined appropriate NAFLD Korean men women using receiver operating characteristic (ROC) curve analysis. Furthermore, compared usefulness various measured...
To investigate the safety and tolerability of gadobutrol at recommended dose in patients requiring contrast-enhanced magnetic resonance imaging/angiography (MRI/MRA) routine setting.GARDIAN prospectively enrolled 23,708 undergoing gadobutrol-enhanced MRI/MRA for approved indications 272 study centres Europe, Asia, North America, Africa monitored adverse events.Median was 0.11 mmol/kg body weight. The overall incidence drug reactions (ADRs) 0.7 % (n = 170 patients), with similar incidences...
Purpose To compare the diagnostic performances of contrast agent–enhanced computed tomography (CT) and gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid–enhanced liver magnetic resonance (MR) imaging (referred to as EOB MR imaging) in evaluation disappearing colorectal metastases (CRLMs) after chemotherapy. Materials Methods The eight institutional review boards approved this retrospective study waived requirement for informed consent. On basis searches hospitals, 87 patients with...
Abstract Breast cancer is the most common among women worldwide, and it a main cause of death in women. As with breast cancer, metabolic components are important risk factors for development nonalcoholic fatty liver disease (NAFLD). In this retrospective cohort study, we aimed to determine prevalence NAFLD patients impact on prognosis cancer. Patients were enrolled study from January 2007 June 2017. Hepatic steatosis was evaluated through non-enhanced computed tomography scan by measuring...