A5038713814- MRI in cancer diagnosis
- Radiomics and Machine Learning in Medical Imaging
- Advanced MRI Techniques and Applications
- Colorectal Cancer Surgical Treatments
- Liver Disease Diagnosis and Treatment
- Hepatocellular Carcinoma Treatment and Prognosis
- Medical Imaging Techniques and Applications
- Advanced Neuroimaging Techniques and Applications
- Shoulder Injury and Treatment
- Liver Disease and Transplantation
- Inflammatory Bowel Disease
- Advanced X-ray and CT Imaging
- Soft tissue tumor case studies
- Cholangiocarcinoma and Gallbladder Cancer Studies
- Hernia repair and management
- Intestinal and Peritoneal Adhesions
- IgG4-Related and Inflammatory Diseases
- Diverticular Disease and Complications
- Intestinal Malrotation and Obstruction Disorders
- Appendicitis Diagnosis and Management
- Organ Transplantation Techniques and Outcomes
- Radiation Dose and Imaging
- Cardiac Imaging and Diagnostics
- Pediatric Hepatobiliary Diseases and Treatments
- Shoulder and Clavicle Injuries
Inje University Haeundae Paik Hospital
2014-2024
CARE Canada
2023
Inje University
2014-2017
Myongji Hospital
2017
University of Ulsan
2009-2016
Ulsan College
2010-2016
Asan Medical Center
2010-2016
To determine whether magnetic resonance (MR) enterography performed with diffusion-weighted imaging (DWI) without intravenous contrast material is noninferior to material-enhanced (CE) MR for the evaluation of small-bowel inflammation in Crohn disease.Institutional review board approval and informed consent were obtained this prospective noninferiority study. Fifty consecutive adults suspected having disease underwent clinical assessment, enterography, ileocolonoscopy within 1 week. included...
To compare the influence of triggering methods for diffusion-weighted imaging (DWI) on apparent diffusion coefficient (ADC) and intravoxel incoherent motion (IVIM) parameters in liver, as well regional variability measurement repeatability.In this institutional review board-approved prospective study, 12 healthy volunteers (six women, six men; mean age, 30 years) underwent 1.5-T DWI liver by using nine b values twice with free breathing (FB) without (mean acquisition time ± standard...
BACKGROUND. Shoulder MRI using standard multiplanar sequences requires long scan times. Accelerated have tradeoffs in noise and resolution. Deep learning-based reconstruction (DLR) may allow reduced time with preserved image quality. OBJECTIVE. The purpose of this study was to compare shoulder accelerated without DLR terms quality diagnostic performance. METHODS. This retrospective included 105 patients (45 men, 60 women; mean age, 57.6 ± 10.9 [SD] years) who underwent a total 110 3-T...
Diffusion-weighted imaging (DWI) is a novel technique to evaluate bowel inflammation in Crohn's disease (CD). It unknown whether and how DWI adds the accuracy of conventional magnetic resonance enterography (MRE).Fifty consecutive adults suspected CD prospectively underwent clinical assessment, MRE at b = 900 sec/mm without water enema, ileocolonoscopy within 1 week. images were interpreted with proper blinding. Forty-four patients finally diagnosed (male:female, 34:10; 26.9 ± 6.1 yr)...
Measurement of the liver and spleen volumes has clinical implications. Although computed tomography (CT) volumetry is considered to be most reliable noninvasive method for volume measurement, it limited application in practice due its time-consuming segmentation process. We aimed develop validate a deep learning algorithm (DLA) fully automated using portal venous phase CT images various conditions.A DLA was trained development dataset from 813 patients. Performance evaluated two separate...
Purpose To evaluate the influence of fitting methods on accuracy and reliability intravoxel incoherent motion (IVIM) parameters, with a particular emphasis constraint function. Materials Methods Diffusion‐weighted (DW) imaging data were analyzed using IVIM‐based full‐fitting (simultaneous fit all parameters) segmented‐fitting (step‐by‐step each parameter), without function, to estimate molecular diffusion coefficient ( D slow ), perfusion fraction f flow‐related fast ). Computational...
This study aimed to compare near-isotropic contrast-enhanced T1-weighted (CE-T1W) magnetic resonance enterography (MRE) images reconstructed with vendor-supplied deep-learning reconstruction (DLR) those conventionally in terms of image quality.A total 35 patients who underwent MRE for Crohn's disease between August 2021 and February 2022 were included this retrospective study. The enteric phase CE-T1W each patient conventional no filter (original), (filtered), a prototype version AIRTM Recon...
Purpose To evaluate temporal changes in contrast enhancement patterns of non-tumorous hepatic parenchyma with a focus on arterial hypervascularity multiphase computed tomography (CT) patients hepatocellular carcinoma (HCC) treated stereotactic body radiotherapy (SBRT). Methods We retrospectively identified 61 who had undergone contrast-enhanced CT at one, three, and six months after SBRT. Irradiated versus non-irradiated liver was delineated by cross-correlation the dose-volume histogram...
To evaluate the association between Non-alcoholic fatty liver disease (NAFLD) with renal stone detected on computed tomography (CT).A total 1812 patients who underwent abdomen-pelvis CT in July 2015 were included this study. The inclusion criteria for NAFLD as follows: (i) lower average Hounsfield unit (HU) of hepatic right lobe, left medial and lateral segment when compared that spleen, (ii) having urolithiasis kidneys, ureters urinary bladder, (iii) including noncontrast image. statistical...
Objectives To compare the diagnostic performance between strain elastography and shear wave (SWE) for diagnosis of carpal tunnel syndrome (CTS). Methods Between July 2018 June 2019, 66 consecutive patients with 95 imaged wrists underwent wrist ultrasound, including grayscale elastography, SWE, because suspicion CTS. During cross‐sectional area (CSA), ratio, elasticity, velocity each median nerve were measured at proximal bone level (scaphoid to pisiform). The variables compared normal CTS...
Background Reference intervals guiding volumetric assessment of the liver and spleen have yet to be established. Purpose To establish population-based personalized reference for volume, liver-to-spleen volume ratio (LSVR). Materials Methods This retrospective study consecutively included healthy adult donors from 2001 2013 (reference group) 2014 2016 (healthy validation patients with viral hepatitis 2007 2017. Liver LSVR were measured CT by using a deep learning algorithm. In group, indexes...
As lymph node (LN) eradication is the prerequisite for clinical surveillance or local excision patients who have achieved a complete response after preoperative chemoradiation therapy (CRT), radiological evaluation of LN important.To evaluate added value diffusion-weighted imaging (DWI) in CRT with locally advanced rectal cancer (LARC).Ninety-five consecutive (64 men, 31 women; mean age, 59 years; range, 32-82 years) underwent pre- and post-CRT 1.5-T MRI DWI (b = 0, 1000 s/mm(2)) were...
To determine the feasibility of use xenon-enhanced dynamic dual-energy computed tomography (CT) for visualization and quantitative assessment collateral ventilation in a canine model with bronchial obstruction.This study was approved by institutional animal care committee. One segmental bronchus occluded nine dogs (weight range, 20-25 kg). Dynamic CT scanning performed using dual-source during wash-in-washout xenon inhalation via mechanical ventilation. Imaging parameters were 14 x 1.2-mm...
Gd-EOB-DTPA-enhanced magnetic resonance (MR) could be used for preoperative evaluation of bile duct anatomy in addition to conventional information focal hepatic lesions.To evaluate accuracy contrast-enhanced MR cholangiography (CE MRC) reconstructed from images depicting biliary with intraoperative cholangiography.We retrospectively identified 71 patients who underwent both imaging (MRI) and resections. Two readers independently analyzed using CE MRC transverse coronal separately 4 weeks....
Background With the introduction of targeted therapies, there has been a growing need for non-invasive imaging methods which accurately evaluate therapeutic effects and overcome limitations tumor size-based response assessments. Purpose To assess diagnostic values intra-voxel incoherent motion (IVIM) in evaluating sorafenib on hepatocellular carcinoma (HCC) using mouse xenograft model. Material Methods Twenty-four mice bearing Huh-7 were divided into control group two treatment groups...