A5037369741- Pediatric Hepatobiliary Diseases and Treatments
- Intestinal Malrotation and Obstruction Disorders
- Congenital Anomalies and Fetal Surgery
- Congenital Diaphragmatic Hernia Studies
- Radiation Dose and Imaging
- Liver Disease Diagnosis and Treatment
- Advanced X-ray and CT Imaging
- Neonatal Respiratory Health Research
- Gallbladder and Bile Duct Disorders
- Gastrointestinal disorders and treatments
- Medical Imaging Techniques and Applications
- Tracheal and airway disorders
- Vascular Malformations and Hemangiomas
- Respiratory viral infections research
- Glioma Diagnosis and Treatment
- Advanced MRI Techniques and Applications
- Pediatric Urology and Nephrology Studies
- Sarcoma Diagnosis and Treatment
- Atomic and Subatomic Physics Research
- Cholangiocarcinoma and Gallbladder Cancer Studies
- MRI in cancer diagnosis
- Foreign Body Medical Cases
- Neonatal and fetal brain pathology
- Vascular anomalies and interventions
- Ultrasound in Clinical Applications
Seoul National University
2013-2022
Seoul National University Hospital
2012-2022
Seoul National University Children's Hospital
2009-2021
New Generation University College
1997-2020
Nation University
2020
Lieber Institute for Brain Development
2020
Kyung Hee University
2018
Chungbuk National University Hospital
2017
National University College
2003-2005
Clinical Research Institute
2003
To develop and evaluate a deep learning-based artificial intelligence (AI) model for detecting skull fractures on plain radiographs in children.This retrospective multi-center study consisted of development dataset acquired from two hospitals (n = 149 264) an external test set 95) third hospital. Datasets included children with head trauma who underwent both radiography cranial computed tomography (CT). The was split into training, tuning, internal sets ratio 7:1:2. reference standard...
Most pediatric chest diseases are adequately evaluated with radiography. However, when radiography does not allow identification of the location and nature an area increased opacity, ultrasonography (US) can help establish diagnosis. US may be helpful in evaluation persistent or unusual areas opacity peripheral lung, pleural abnormalities, mediastinal widening; is particularly useful patients complete opacification a hemithorax at In cases pulmonary parenchymal lesions, air fluid...
To prospectively evaluate the accuracy of hepatic artery diameter and diameter-to-portal vein ratio for ultrasonographic (US) diagnosis biliary atresia, with cholangiographic or clinical information as reference standard.Institutional review board approval informed consent were obtained. US was performed in 68 neonates infants cholestatic jaundice (mean age, 61 days; male-to-female ratio, 38:30). Biliary atresia (n = 38) confirmed cholangiography, hepatitis 30) diagnosed 24) 6) findings....
Neonatal-onset inflammatory bowel disease (IBD) accounts for only 0.25% of pediatric IBD cases. The molecular pathogenesis remains unclear. Recently, rare Mendelian mutations have been identified in children with very early-onset Crohn's and ulcerative colitis. In this study, we report compound heterozygous the interleukin-10 receptor A (IL-10RA) gene severe neonatal-onset IBD. Patient 1 had chronic diarrhea within first month life perianal fistulae. She was diagnosed 'intractable ulcerating...
Background Radiologic evaluation of children with Mycoplasma pneumoniae is important for diagnosis and management. Objective To investigate the correlation between chest radiographic findings clinical features in pneumonia. Materials methods This study included 393 hospitalized diagnosed M. pneumonia January 2000 August 2016. Their radiographs were reviewed. Radiographic categorized grouped as consolidation group (lobar or segmental consolidation) non-consolidation (patchy infiltration,...
Purpose The aim of this study was to identify the signal intensity (SI) changes in dentate nucleus (DN) and globus pallidus (GP) on unenhanced T1-weighted magnetic resonance (MR) images after multiple administration gadolinium-based contrast agents (GBCAs) children compare those between linear macrocyclic GBCAs. Materials Methods This retrospective approved by institutional review board requirement for informed consent waived. We identified 92 who underwent at least 4 consecutive MR...
The clinical course of Mycoplasma pneumonia is typically mild and self-limited. There are, however, several case reports severe complication following this illness with considerable morbidity mortality.This study was conducted to investigate, using high-resolution computed tomography (HRCT), the long-term pulmonary structural abnormalities after identify risk factors (chest radiograph findings, antibody titers, host factors) that might increase likelihood developing sequelae.Thirty-eight...
As complications of tuberculosis are frequent in infancy, correct diagnosis infants is important. The purposes this study to summarize radiographic and CT findings pulmonary determine the radiologic features frequently seen with disease.Frequent mediastinal or hilar lymphadenopathy central necrosis air-space consolidations, especially masslike consolidations low-attenuation areas cavities within consolidation. Disseminated nodules airway also detected age group. a useful diagnostic technique...
The purpose of this study was to evaluate retrospectively the CT and sonographic features in nine children with pathologically proven inflammatory myofibroblastic tumors abdomen.Although occur various sites imaging characteristics are variable, showed different patterns that were dependent on site at which tumor had originated.
To evaluate whether perfusion magnetic resonance (MR) imaging can depict hemodynamic status after revascularization surgery and changes at MR correspond with clinical outcome in moyamoya disease.An institutional review board approved this retrospective study; informed consent was waived. Pre- postoperative data 67 children disease (mean age, 7.2 years; range, 2-13 years) were included. Regional time to peak (rTTP) regional cerebral blood volume (rCBV) calculated by adjusting (TTP) (CBV)...
With the emergence of macrolide resistance, concerns about efficacy macrolides for treatment Mycoplasma pneumoniae (MP) pneumonia in children have been raised. This study aimed to determine effect resistance on outcome who were hospitalized with MP pneumonia. Between 2010 and 2015, we performed culture from nasopharyngeal samples obtained at five hospitals Korea. Macrolide was determined by analysis 23S rRNA gene transition minimal inhibitory concentrations four macrolides. Medical records...
Abstract This study aimed to evaluate a deep learning model for generating synthetic contrast-enhanced CT (sCECT) from non-contrast chest (NCCT). A was applied generate sCECT NCCT. We collected three separate data sets, the development set (n = 25) training and tuning, test 1 technical evaluation, 2 12) clinical utility evaluation. In 1, image similarity metrics were calculated. 2, lesion contrast-to-noise ratio of mediastinal lymph nodes measured, an observer conducted compare conspicuity....
We analyzed the CT features of 22 patients with endobronchial tuberculosis (EBTB) showing segmental collapse and/or mas-like infiltrates. The findings involved bronchi were bronchial stenosis wall thickening or peribronchial cuff soft tissue (n = 9), obstruction 7), involvement tuberculous lymphadenitis 5), intraluminal lower density polypoid mass narrowing 1). Enhancement following intravenous contrast medium administration was noted in four seven group. parenchymal lesions distal to lesion...
Objective: We retrospectively evaluated the effectiveness of esophageal balloon dilatation (EBD) in children with a corrosive stricture. Materials and Methods:The study subjects included 14 patients (M:F = 8:6, age range: 17-85 months) who underwent an EBD due to stricture.The causative agents for condition were glacial acetic acid (n 9) lye 5).Results: A total 52 sessions performed (range 1-8 sessions).During mean 15-month follow-up period 1-79 months), 12 (86%) additional recurrent...
Objective: To develop an high resolution computed tomography (HRCT) scoring system for the assessment of bronchopulmonary dysplasia (BPD) and determine its usefulness as compared with chest radiographic score.Materials Methods: Forty-two very low-birth-weight preterm infants BPD (25 male, 17 female) were prospectively evaluated HRCT performed at mean age 39.1-week postmenstrual age.Clinical severity was categorized mild, moderate or severe.The score (0-36) each patient sum number segments 1)...
Objective: To assess the diagnostic value of various ultrasound (US) findings and to make a decision-tree model for US diagnosis biliary atresia (BA).Materials Methods: From March 2008 January 2014, following were retrospectively evaluated in 100 infants with cholestatic jaundice (BA, n = 46; non-BA, 54): length morphology gallbladder, triangular cord thickness, hepatic artery portal vein diameters, visualization common bile duct.Logistic regression analyses performed determine features that...