A5000407758- Psychosocial Factors Impacting Youth
- Medical Imaging Techniques and Applications
- Advanced MRI Techniques and Applications
- MRI in cancer diagnosis
- Lung Cancer Diagnosis and Treatment
- Radiomics and Machine Learning in Medical Imaging
- Atomic and Subatomic Physics Research
- Advanced Neuroimaging Techniques and Applications
- Radiation Dose and Imaging
- Early Childhood Education and Development
- Energy and Environmental Systems
- Advanced X-ray and CT Imaging
- Korean Urban and Social Studies
- Educational Systems and Policies
- Education and Learning Interventions
- Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
- Central Venous Catheters and Hemodialysis
- Aquaculture disease management and microbiota
- Cerebrovascular and Carotid Artery Diseases
- Antibiotics Pharmacokinetics and Efficacy
- Acute Kidney Injury Research
- Intracranial Aneurysms: Treatment and Complications
- Chronic Obstructive Pulmonary Disease (COPD) Research
- Cardiac, Anesthesia and Surgical Outcomes
- Child and Adolescent Psychosocial and Emotional Development
Gyeongsang National University
2006-2025
Changwon National University
2016-2025
Seoul National University Children's Hospital
2018
Gyeongsang National University Hospital
2015-2016
Woosong University
2015
Ewha Womans University
2013
Yonsei University
2002
Objectives This study aimed to develop a dual-input convolutional neural network (CNN)–based deep-learning algorithm that utilizes both anteroposterior (AP) and lateral elbow radiographs for the automated detection of pediatric supracondylar fracture in conventional radiography, assess its feasibility diagnostic performance. Materials Methods To model, 1266 pairs AP examined between January 2013 December 2017 at single institution were split into training set (1012 pairs, 79.9%) validation...
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...
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....
OBJECTIVE. The long scan time of brain MRI is a major drawback that limits its clinical use for evaluating pediatric patients who are inherently prone to motion and frequently require sedatives. This study investigated the feasibility 1-minute ultrafast protocol in by assessing image quality comparison with routine MRI. MATERIALS AND METHODS. Twenty-three were enrolled underwent protocols including five essential sequences (T1-weighted imaging, T2-weighted DWI, FLAIR, T2*-weighted imaging)....
Objective: To determine the correlation between cerebral blood flow (CBF) on arterial spin labeling (ASL) MRI and degree of postoperative revascularization assessed digital subtraction angiography in children with moyamoya disease (MMD).Materials Methods: Twenty-one (9 boys 12 girls; mean age, 8.4 ± 3.6 years; age range, 3-16 years) MMD who underwent both pseudocontinuous ASL at 1.5T catheter before after superficial temporal artery encephaloduroarteriosynangiosis were included this...
Flow visualization in time-of-flight magnetic resonance angiography (TOF MRA) is limited for treated intracranial aneurysms owing to susceptibility and radiofrequency shielding.To assess the clinical usefulness of noncontrast-enhanced (MRA) using a silent scan (silent as follow-up imaging modality patients with aneurysms.A total 119 126 underwent MRA TOF during same session. Two neuroradiologists independently assessed overall image quality site 5-point Likert scale compare 2 sets. We used...
To assess the feasibility of ultrafast brain magnetic resonance imaging (MRI) in pediatric patients. We retrospectively reviewed 194 patients aged 0 to 19 years (median 10.2 years) who underwent both and conventional MRI between May 2019 August 2020. Ultrafast sequences included T1 T2-weighted images (T1WI T2WI), fluid-attenuated inversion recovery (FLAIR), T2*-weighted image (T2*WI), diffusion-weighted (DWI). Qualitative quality lesion evaluations were conducted on 5-point Likert scales by...
The aim of this study was to determine the relationship between lobar severity emphysema and lung cancer using automated lobe segmentation quantification methods. This included 78 patients (74 males 4 females; mean age 72 years) with following conditions: pathologically proven cancer, available chest computed tomographic (CT) scans for segmentation, quantitative scoring emphysema. analyzed each pulmonary lobe. most common location left upper (LUL) (n = 28), followed by right (RUL) 27), lower...
<h3>BACKGROUND AND PURPOSE:</h3> The long scan time of MR imaging is a major drawback limiting its clinical use in neuroimaging; therefore, we aimed to investigate the feasibility 1-minute full-brain using multicontrast EPI sequence on different scanner than ones previously reported. <h3>MATERIALS METHODS:</h3> We retrospectively reviewed records 146 patients who underwent sequence, including T1-FLAIR, T2-FLAIR, T2WI, DWI, and T2*WI sequences. Two attending neuroradiologists assessed image...
Background In CT-guided transthoracic lung biopsy (CTLB), pneumothorax can occur as a late complication (delayed pneumothorax). The incidence, risk factors, and clinical significance of delayed are not well known. Objectives To compare the factors for immediate after CTLB to know their significance. Methods Images medical records 536 consecutive patients who underwent were reviewed. All biopsies performed inpatient procedures. Follow-up chest radiographs obtained at least twice 4 h procedure...
Mitochondrial dysfunction in dopaminergic neurons of patients with idiopathic and familial Parkinson's disease (PD) is well known although the underlying mechanism not clear. We established a homogeneous population human adipose tissue-derived mesenchymal stromal cells (hAD-MSCs) from adult early-onset hereditary Parkin-defect PD as late-onset by immortalizing hTERT gene to better understand PD. The hAD-MSCs were designated "PD", "Parkin" pituitary adenomas "non-PD" short. pGRN145 plasmid...
To investigate the clinical feasibility of synthetic diffusion-weighted imaging (sDWI) at different b-values in patients with breast cancer by assessing diagnostic image quality and quantitative measurements compared conventional (cDWI).Fifty were assessed using cDWI 800 1500 s/mm² (cDWI800 cDWI1500) sDWI 1000 (sDWI1000 sDWI1500). Qualitative analysis (normal glandular tissue suppression, overall quality, lesion conspicuity) was performed a 4-point Likert-scale for all DWI sets detection...
Background Transradial access is a well-known alternative to conventional transfemoral for interventional procedures. Recently, transradial through the "snuffbox", which lies in radial dorsal aspect of hand, has been introduced as new technique with positional versatility. In this study, we aimed evaluate clinical feasibility and safety distal procedures retrospective, multicenter study. Material & methods Distal was attempted 46 patients (36 men 10 women; mean age, 64 years) who underwent...
To retrospectively evaluate the value of computerized 3D texture analysis for differentiating pulmonary metastases from non-metastatic lesions in pediatric patients with osteosarcoma.This retrospective study was approved by institutional review board. The comprised 42 pathologically confirmed nodules 16 children osteosarcoma who had undergone preoperative computed tomography between January 2009 and December 2014. Texture performed using an in-house program. Multivariate logistic regression...
Background and Objectives: Preoperative prophylactic balloon-assisted occlusion (PBAO) of the internal iliac arteries minimizes blood loss facilitates surgery performance, through reductions in rate uterine perfusion, which allow for better control hysterectomy with decreased rates bleeding surgical complications. We aimed to investigate maternal fetal outcomes associated PBAO use women placenta increta or percreta. Material Methods: The records 42 consecutive patients a diagnosis percreta...
Background and Objectives: To investigate the diagnostic performance of F-18 fluorodeoxyglucose positron emission tomography/computed tomography (PET/CT) subsequent ultrasonography (US) for determining cervical nodal metastasis in oncology patients. Materials Methods: Fifty-nine lymph nodes (LNs) initially detected by PET/CT with neck US were included this retrospective study. All LNs subjected to US-guided fine-needle aspiration or core needle biopsy. The maximum standardized uptake value...
To evaluate the incidence and risk factors of emetic complications associated with intravenous administration low-osmolality iodinated contrast media (ICM) in children undergoing computed tomography (CT). All who underwent contrast-enhanced CT between April 2017 July 2019 were included. Pediatric patients instructed on preparative dietary protocol at our institution. Experienced nurses radiology department monitored during scans recorded any their electronic medical records. These data used...
Rationale: Splenic artery pseudoaneurysm induced by benign gastric ulcer is extremely rare and can lead to a fatal clinical situation. To the best of our knowledge, there are only five cases in literature review. Therefore, it be diagnostic challenge for radiologists clinicians because incidence. Patient concerns: The patient visited hospital due melena dizziness. Diagnoses: showed huge an exposed vessel posterior wall high body during endoscopy. Angiography revealed splenic contrast...
Abstract The aim of this study was to evaluate the clinical feasibility and effectiveness bedside peripherally inserted central catheter (PICC) using portable digital radiography (DR) in intensive care unit (ICU) patients. Sixty-five ICU patients who underwent PICC were enrolled between May 2016 2017. Of these 65 patients, 45 (69.2%) procedures DR, 20 (30.8%) at intervention clinic, both performed by a single interventional radiologist. We retrospectively reviewed electronic medical records...
Strongyloidiasis is chronic parasite infection caused by Strongyloides stercoralis . It endemic in tropical and subtropical areas (1,2). Skin contact with dirty soil poor sanitary conditions are risk factors for infection. Rhabditiform larvae warm moist can develop into filariform that penetrate human skin migrate through circulation to lungs (3). These escape alveolar space pharynx. By being swallowed pharyngeal secretion, settle small intestine mature adults.