A5051031516- Radiation Dose and Imaging
- Advanced X-ray and CT Imaging
- Digital Radiography and Breast Imaging
- Radiology practices and education
- Medical Imaging Techniques and Applications
- Radioactivity and Radon Measurements
- Cardiac Imaging and Diagnostics
- Ultrasound in Clinical Applications
- Diverse Approaches in Healthcare and Education Studies
- Traditional Chinese Medicine Studies
- Sinusitis and nasal conditions
- Lower Extremity Biomechanics and Pathologies
- Skin Protection and Aging
- Surgical Simulation and Training
- Reproductive Biology and Fertility
- Cerebral Venous Sinus Thrombosis
- Advanced Radiotherapy Techniques
- Marine and Coastal Research
- HER2/EGFR in Cancer Research
- Management of metastatic bone disease
- Cancer Cells and Metastasis
- Mathematical and Theoretical Epidemiology and Ecology Models
- Effects of Radiation Exposure
- Sphingolipid Metabolism and Signaling
- Technology and Data Analysis
Yonsei University
2024-2025
Daegu Health College
2019-2023
Chungbuk Provincial College
2016-2017
Korea University
2013-2016
WonKwang Health Science University
2015
Seoul National University of Science and Technology
2011
Catholic University of Korea
1998-2008
Hallym University
2004
Kyungpook National University
1999
Journal Article Evaluation of radiation doses in patient and medical staff during endoscopic retrograde cholangiopancreatography procedures Get access Deoknam Seo, Seo 1Department Diagnostic Radiology, Korea Institute Radiological Medical Sciences, Seoul 139-706, Republic Korea2Department Bio-Convergence Engineering, University Graduate School, 136-703, Search for other works by this author on: Oxford Academic PubMed Google Scholar Kie Hwan Kim, Kim Jung-Su 2Department Seonggyu Han, Han...
The aim of this study was to determine the conversion factors for effective dose (ED) per length product (DLP) various computed tomography (CT) protocols based on 2007 recommendations International Commission Radiological Protection (ICRP). CT data from 369 scanners and 13,625 patients were collected through a nationwide survey. Data 3793 with difference in height within 5% computational human phantoms selected calculate ED DLP. anatomical scan ranges 11 (adult-10, pediatric-1) determined by...
Background: In 2021, the Korean government proposed a new CT diagnostic reference level. This study performed nationwide survey and developed DRLs AD for 13 common examinations. We compared other countries’ Methods: investigated CTDIvol DLP of 12 types protocols adults brain protocol pediatrics. A total 7829 examinations were using 225 scanners. defined values in distribution radiation exposure levels to determine patient dose status dose. Results: showed that national are slightly higher or...
To develop a second set of diagnostic reference levels (DRLs) and achievable doses (ADs) for 13 adult computed tomography (CT) protocols paediatric head CT protocol in Korea. A survey 13,625 examinations was performed based on non-contrast brain using 369 systems, with patients grouped according to age. Most this had DRLs similar those reported other countries. However, chest abdomen-pelvic lower than the first Korean national from Paediatric each age group, exception 11-15-year The...
The clinical anteroposterior (AP) chest images taken with a mobile radiography system were analyzed in this study to utilize the exposure index (EI) as patient dose-monitoring tool. digital imaging and communications medicine header of 6048 data points exposed under 90 kVp 2.5 mAs extracted using Python for identifying distribution EI. Even same conditions, EI was 137.82-4924.38. To determine cause, effect patient's body shape on confirmed actual AP image binarized into 0 255-pixel values...
Cardiac angiography to visualize the cardiac coronary artery for lesions causes a lot of radiation exposure dose interventional cardiologist. We evaluated occupational cardiologist based on changes angle X-ray tube used in and calculated conversion factor effective this study. To evaluate resulting from scattered cardiologists, organ doses eyeball, thyroid, heart were using Monte Carlo simulation with korean typical man(KTMAN) phantom at left anterior oblique (LAO)30/cranial (CRAN)30,...
In radiography, the exposure index (EI), as per International Electrotechnical Commission standard, depends on incident beam quality and dose to digital radiography system. Today automatic control (AEC) systems are commonly employed obtain optimal image quality. An AEC system can maintain a constant receptor regardless of patient thickness. this study, we investigated relationship between body thickness, entrance surface (ESD), EI, indicator (S value) with aim using EI optimization tool in...
Interventional cardiology procedures can involve relatively high radiation doses compared to general radiography. During coronary angiography (CAG) and percutaneous transluminal intervention (PCI), the same area is exposed for a long period. In this study, exposure data of 1071 examinations in Korean hospitals were collected, achievable dose (AD) diagnostic reference levels (DRLs) actual medical practice two types interventional Korea established. CAG, 75th percentile DRLs AD total...
Medical radiation exposure is a significant concern for interventional cardiologists (IC). This study was aimed at estimating the of IC operators and assistants in real clinical practice. The operator assistant evaluated by conducting two types procedures via coronary angiography (CAG) percutaneous intervention (PCI) on 1090 patients 11-cardiovascular centers Korea. Radiation measured using an electronic personal dosimeter (EPD). EPD were attached 3 points each participant: apron left...
Whole spine scanography (WSS) is a radiologic examination that requires whole body X-ray exposure. Consequently, the amount of patient radiation exposure higher than dose following routine examination.Several studies have evaluated effective (ED) single film-screen WSS. The objective this study was to evaluate ED during WSS, based on automatic image pasting method for multiple digital radiography (APMDR). Further, calculated EDs were compared with results previous involving WSS.We 50...
The hepatitis C virus (HCV) core protein is believed to be one of viral proteins that are capable preventing virus-infected cell death upon various stimuli. But, the effect HCV on apoptosis induced by stimuli contradictory. We examined possibility affects ceramide-induced in cells expressing through sphingomyelin pathway. Cell C(2)-ceramide and bacterial sphingomyelinase was analyzed 293 constitutively expressed compared with were stably transfected only expression vector. inhibited these...
The International Electrotechnical Commission established the concept of exposure index (EI), target (EIT) and deviation (DI). Some studies have conducted to utilize EI as a patient dose monitoring tool in digital radiography (DR) system.To establish appropriate clinical EIT, this study aims introduce diagnostic reference level (DRL) for general confirm usefulness DI.The relationship between entrance surface (ESD) is obtained by under national conditions Korea 7 extremity examinations. value...
This work presents an audio-visual interactive chatbot (AVIN-Chat) system that allows users to have face-to-face conversations with 3D avatars in real-time. Compared the previous services, which provide text-only or speech-only communications, proposed AVIN-Chat can offer communications providing a superior experience quality. In addition, emotionally speaks and expresses according user's emotional state. Thus, it enables establish strong bond system, increasing immersion. Through user...
Purpose: The objective of this study was to assess the feasibility incorporating virtual reality/augmented reality (VR/AR) programs into practical tests administered as part Korean Radiological Technologists Licensing Examination (KRTLE). This evaluation is grounded in a comprehensive survey that targeted enrolled students departments radiology across nation.Methods: In total, 682 from nation were participants survey. An online platform used, and questionnaire structured 5 distinct sections...
This study evaluated the accuracy of tangential axial radiography patellar and femoral joint using an auxiliary device based on three image evaluation criteria, which we named patellofemoral (PJR). To compare PJR method with conventional radiographic methods, such as Laurin, Merchant, Settegast, a whole-body phantom (PBU-31) was used items were set. The method, smallest inclination showed best half lateral patella, is measurement 9.40. second-best 9.97, difference between two measures 5.76%...