A5075223508- Radiation Therapy and Dosimetry
- Advanced Radiotherapy Techniques
- Atrial Fibrillation Management and Outcomes
- Radiomics and Machine Learning in Medical Imaging
- Cardiac Structural Anomalies and Repair
- Cardiac Arrhythmias and Treatments
- Lung Cancer Diagnosis and Treatment
- Lung Cancer Treatments and Mutations
- SARS-CoV-2 detection and testing
- Aortic aneurysm repair treatments
- Cardiovascular Disease and Adiposity
- Infective Endocarditis Diagnosis and Management
- Radiation Dose and Imaging
- Pelvic and Acetabular Injuries
- Neutropenia and Cancer Infections
- Aortic Disease and Treatment Approaches
- Handwritten Text Recognition Techniques
- Cardiovascular Syncope and Autonomic Disorders
- Medical Imaging Techniques and Applications
- Advances in Oncology and Radiotherapy
- SARS-CoV-2 and COVID-19 Research
- Pelvic floor disorders treatments
- Blood transfusion and management
- Boron Compounds in Chemistry
- Image Processing and 3D Reconstruction
Korea Institute of Radiological and Medical Sciences
2012-2025
Asan Medical Center
2015-2024
Hanyang University
2024
Ulsan College
2022-2023
University of Ulsan
2022-2023
National Cancer Center
2014-2015
Chung-Ang University
2010
Chosun University
1998
This study aimed to evaluate the clinical status of radiation therapy (RT), including RT utilization (RTU) rate and infrastructure in Korea 2020 2021. Patient data for individuals undergoing 2021 were sourced from Health Insurance Review Assessment Service. Through these data, we assessed following aspects: total number patients who received 2021, RTU with cancer, by cancer diagnosis, treated age, region, hypofractionated breast specific modality. In 90,351 97,840 patients, respectively,...
The synthetic, tension-free midurethral sling procedure using transobturator tape (TOT) was introduced in 2001 and has become the most widely used for treatment of female urinary incontinence worldwide.However, infectious complications associated with erosions have occasionally been reported because a foreign body reaction to polypropylene mesh.We observed case bilateral recurrent thigh abscess manifesting 5 years after TOT procedure.The patient had abscesses repeated incisions drainages...
<title>Abstract</title> Objectives To investigate long-term outcomes and develop a risk model for pathological multi–station N2 (pN2b) in patients who underwent upfront surgery clinical single–station (cN2a) non–small cell lung cancer (NSCLC). Methods From 2006 to 2018, 547 had suspected cN2a NSCLC analysis. A predicting pN2b metastasis was developed using preoperative variables via multivariable logistic Results Among patients, 118 (21.6%), 58 (10.6%), 371 (67.8%) pN0, pN1, pN2. pN2 77...
To investigate long-term outcomes and develop a risk model for pathological multi–station N2 (pN2b) in patients who underwent upfront surgery clinical single–station (cN2a) non–small cell lung cancer (NSCLC). From 2006 to 2018, 547 had suspected cN2a NSCLC analysis. A predicting pN2b metastasis was developed using preoperative variables via multivariable logistic Among patients, 118 (21.6%), 58 (10.6%), 371 (67.8%) pN0, pN1, pN2. pN2 77 (20.8%), 165 (44.5%), 129 (34.7%) pN2a1, pN2a2, pN2b....
Red blood cells (RBCs) are a limited resource, and the adverse effects of transfusion must be considered. Multiple randomized controlled trials on thresholds have been conducted, leading to establishment restrictive strategy. This study aimed investigate status RBC transfusions in critically ill patients.
Abstract Background Clinical outcomes after catheter ablation (CA) or pacemaker (PM) implantation for tachycardia-bradycardia syndrome (TBS) has not been well evaluated. Purpose This randomized controlled study compared the efficacy and safety of CA PM as an initial treatment TBS with paroxysmal atrial fibrillation (AF). Methods A total 70 patients AF (mean 64 years, 64.3% male) underwent randomization, received (CA group, n=35) (PM treatment. The primary outcome was unexpected emergency...
Purpose: We developed an endorectal balloon for in-vivo rectal dosimetry in two-dimensions, and evaluated its dosimetric properties the radiation treatment of prostate cancer. Methods: The is equipped with a radiochromic film so that two-dimensional dose distribution can be measured wall. unrolled as inflated, it rolled deflated. outer diameter about 14 mm before inflating it, but increased up to 50 after 80 ml distilled water. size 80(L) × 64(W) mm2, large measure anterior half After was...
Purpose: To verify the design criteria on heavy ion beam irradiation, developing a proto type active scanning system was purposed. The consists of magnet, power supplies, monitors, energy modulation system, and irradiation control system. Methods: Each components designed for carbon first. For fast ramping laminated yoke measure incoming dose profile, plate strip chambers were designed. Also, ridge filter range shifter manufactured. And, modified to adopt 45 MeV proton because absence in...
Purpose: To develop a new method to align the patient setup lasers in radiation therapy and examine its validity effectiveness. Methods: The laser alignment was realized by device composed of both metallic base plate few acrylic transparent plates with cross hair line on each them. holders radiochromic films were prepared find isocenter. right positions could be found optically matching shadows all hairs gantry head device. repeatability reproducibility (R&R) alignments dependency...
Purpose: The beam conditions at the end of HEBT (High Energy Beam Transport) line affect on active scanning nozzle design and parameters. In this study, different initial were applied to determine an appropriate dimension. Using determined conditions, dose distribution Io-center was calculated provide a spot spacing scanning. Methods: geometry dimension set about 9 m from Iso-center. considered vacuum space until 7.3 HEBT. Two applied. first simple gaussian for divergence case. And, second...
Abstract BACKGROUND Bevacizumab (BVZ) is known to be effective control radiation necrosis (RN) following stereotactic radiosurgery (SRS) for brain metastases (BMs), although treatment failure may occur. Here, we investigated the incidence and pattern of local after BVZ therapy RN its underlying biological mechanism. MATERIAL AND METHODS We conducted a retrospective analysis on 17 patients who had been treated with SRS BMs between 2016 2021. In each patient, diagnosis was made based...
Joon Young Kim, M.D., Won Chul Cho, Ph.D., Dong-Hee Eun Seok Choi, Bo Sang Kwon, Tae-Jin Yun, Chun Soo Park, Ph.D.. J Chest Surg -0001;0:. https://doi.org/10.5090/jcs.23.071
KHIMA (Korea Heavy Ion Medical Accelerator) project has a plan to develop and construct research beam line for carbon active scanning system. The consists with magnet, beam-monitoring system, energy modulation In this study, the significant components, magnets ridge filter, were designed line.The magnet filter used 3 dimensional dose delivery simulation by Geant4 Monte Carlo code. target volume of was 10 × 5 cm2 on water phantom 400 MeV/u beam. transvers plane scanned 3mm step size. And,...
You have accessJournal of UrologyProstate Cancer: Detection and Screening IV1 Apr 20122067 PSA VELOCITY PER PROSTATE VOLUME: A NOVEL TOOL FOR BIOPSY PREDICTION Seung Hyun Ahn, In Ho Chang, Kyung Do Kim, Young Tae Moon, Soon Chul Myung, Joon Se Choi AhnSeung Ahn Seoul, Korea, Republic More articles by this author , ChangIn Chang KimKyung Kim MoonYoung Moon MyungSoon Myung KimJoon ChoiSe View All Author Informationhttps://doi.org/10.1016/j.juro.2012.02.2232AboutPDF ToolsAdd to...
The optimal management of atypical meningioma after gross total resection remains unclear and controversial. After Simpson grade 1 resection, observation without adjuvant treatment has wide currency, while 4 or closed recommended at least. In this study, the authors made a comparison with natural course treatment, especially in 2 resection. reviewed 179 cases histological proven meningioma(WHO II) managed single hospital between June 1990 December 2015. A 62 men 117 women were included who...
Abstract Background Gender difference in stroke risk by the presence of atrial fibrillation was not well evaluated. Purpose We hypothesized that gender showed different impacts on future thromboembolic patients with and without fibrillation. Methods The study population comprised 26,226 (mean 56.3 years old, 52.6% male) (n=3147, 12.0%) or (n=23079, 88.0%) who underwent cardiac evaluations consisted electrocardiography, echocardiography, holter monitoring our center. main outcomes were events...
Abstract Background Incidence and outcomes of new-onset ventricular tachycardia (VT) after cardiac surgery are not fully evaluated. Purpose We retrospectively analyzed the occurrence VTs surgery, their implications on short long-term mortality. Methods Data 11,004 adult patients who underwent at our center from 2006 to 2016 were analyzed. VT was diagnosed when 3 or more consecutive wide QRS complexes (>100 bpm) documented ECG. The major study in-hospital 5-years overall mortality rates....
Extensive thoracic aortic disease involving the ascending aorta, arch, and descending aorta may require multiple surgical interventional managements, which impose a burden in terms of cumulative trauma risk interval mortality. Herein, we describe single-stage arch replacement via sternotomy patient with comorbidities presenting an extensive aneurysm.