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Evaluations and Comparisons of Body Surface Doses during Breast Cancer Treatment by Tomotherapy and LINAC Radiotherapy Devices

Lee HJ, Bae SH, Cho KH, Jeong JH, Kwon SI, Lee KD

Effects on skin caused by the dose from linear accelerator (LINAC) opposing portal irradiation and TomoDirect 3-D modeling treatment according to the radiation devices and treatment methods were measured, and...
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Review of the Nomenclature of the Retaining Ligaments of the Cheek: Frequently Confused Terminology

Seo YS, Song JK, Oh TS, Kwon SI, Tansatit T, Lee JH

Since the time of its inception within facial anatomy, wide variability in the terminology as well as the location and extent of retaining ligaments has resulted in confusion over nomenclature....
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Evaluations of the Space Dose and Dose Reductions in Patients and Practitioners by Using the C-arm X-ray Tube Shielding Devices Developed in Our Laboratory

Kim JS, Kim SH, Lee BH, Kwon SI, Jung H, Hoe SW, Son JH, Kang BS

The present study used a digital angiography x-ray device to measure the space dose and exposure dose of patients and practitioners using x-ray tube shielding devices developed in our laboratory....
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Analysis of Air Discharge and Disused Air Filters in Radioisotope Production Facility

Kim SH, Lee BH, Kwon SI, Kim JS, Kim GS, Park MS, Jung H

When air discharged from a radioisotope production facility is contaminated with radiation, the public may be exposed to radiation. The objective of this study is to manage such radiation exposure....
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Analysis of Trends in Dose through Evaluation of Spatial Dose Rate and Surface Contamination in Radiation-Controlled Area and Personal Exposed Dose of Radiation Worker at the Korea Institute of Radiological and Medical Sciences (KIRAMS)

Lee BH, Kim SH, Kwon SI, Kim JS, Kim GS, Park MS, Park S, Jung H

As the probability of exposure to radiation increases due to an increase in the use of radioisotopes and radiation generators, the importance of a radiation safety management field is being...
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Characteristics of CCD Based Optical CT Scanner for Therapeutic Radiation Dosimetry

Lee JC, Kim AR, Ji YH, Kwon SI

A CCD camera and an LED light source were combined to fabricate a compact optical CT scanner for the therapeutic radiation dose evaluation of a polymer gel dosimeter. After the...
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The Effects of Attitude to Death in the Hospice and Palliative Professionals on Their Terminal Care Stress

Yang KH, Kwon SI

PURPOSE: This study was conducted to explore the effects of attitude to death in hospice and palliative professionals on their terminal care stress, and to analyze relationships among variables related...
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The Effects of the Scleral Suture in 23-Gauge Transconjunctival Sutureless Vitrectomy

Kim HW, Kwon SI, Park IW

PURPOSE: To evaluate the effects of scleral suture for the sclerotomy wound leakage and the clinical outcomes in 23-gauge transconjunctival sutureless vitrectomy with fluid-air exchange. METHODS: A retrospective, comparative chart review...
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The relationship between quality of sleep and night shift rotation interval

Kim JY, Chae CH, Kim YO, Son JS, Kim JH, Kim CW, Park HO, Lee JH, Kwon SI

BACKGROUND: Shift work is closely related with workers' health. In particular, sleep is thought to be affected by shift work. In addition, shift work has been reported to be associated...
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Association between serum vitamin D and depressive symptoms among female workers in the manufacturing industry

Kwon SI, Son JS, Kim YO, Chae CH, Kim JH, Kim CW, Park HO, Lee JH, Jung JI

BACKGROUND: Vitamin D has been known to maintain the body's balance of calcium and phosphorus as well as skeletal health. There has been increasing emphasis on the importance of vitamin...
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Development and Utility Evaluation of Portable Respiration Training Device for Image-guided Stereotactic Body Radiation Therapy (SBRT)

Hwang SB, Park MK, Park SW, Cho YR, Lee DH, Jung HJ, Ji YH, Kwon SI

This study developed a portable respiratory training device to improve breathing stability, which is an important element in using the CyberKnife Synchrony respiratory tracking device, one of the typical Stereotactic...
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Evaluation of Dose Change by Using the Deformable Image Registration (DIR) on the Intensity Modulated Radiation Therapy (IMRT) with Glottis Cancer

Kim WC, Min CK, Lee S, Choi SH, Cho KH, Jung JH, Kim ES, Yeo SG, Kwon SI, Lee KD

The purpose of this study is to evaluate the variation of the dose which is delivered to the patients with glottis cancer under IMRT (intensity modulated radiation therapy) by using...
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Clinical Manifestation of Juvenile Idiopathic Arthritis Associated Uveitis in Korea

Kwon SI, Baek SU, Park IW, Kim KN, Park CK

  • KMID: 2338563
  • J Korean Ophthalmol Soc.
  • 2013 Dec;54(12):1838-1843.
PURPOSE: To investigate the incidence and clinical characteristics of juvenile idiopathic arthritis (JIA)-associated uveitis in Korea and to identify the risk factors for developing uveitis and poor visual outcome. METHODS: We...
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Neovascular Glaucoma Due to Branch Retinal Vein Occlusion Combined with Branch Retinal Artery Occlusion

An TS, Kwon SI

Branch retinal artery occlusion (BRAO) and branch retinal vein occlusion (BRVO) rarely cause neovascular glaucoma (NVG). A 58-year-old woman with hypertension and type 2 diabetic mellitus complained of progressive visual...
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The Changes in Central Macular Thickness after Cataract Surgery in Patients with Diabetic Retinopathy

An TS, Park IW, Kwon SI

  • KMID: 2338272
  • J Korean Ophthalmol Soc.
  • 2012 Oct;53(10):1472-1479.
PURPOSE: To evaluate the changes in central macular thickness (CMT) and incidence of macular edema (ME) after cataract surgery in diabetic patients compared with non-diabetic patients using optical coherence tomography...
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Preliminary Investigations of the Dosimetric Properties of a Normoxic Polymethacrylic Acid Gel Dosimeter Using a Respiration-Motion Simulator

Park CH, Cho YR, Cho KH, Park JA, Kim KM, Kim KB, Jung HJ, Ji YH, Kwon SI

  • KMID: 1436499
  • Prog Med Phys.
  • 2012 Sep;23(3):138-144.
Dose distribution throughout the clinical organ range of motion was analyzed using a respiratory-motion simulator that was equipped with a polymer gel dosimeter and EBT2 film. The normoxic polymer gel...
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A Case of Acute Retinal Necrosis Following Herpes Simplex Virus (HSV) Encephalitis

An TS, Kwon SI, Hwang DJ, Park IW

PURPOSE: To report a case of unilateral acute retinal necrosis (ARN) following herpes simplex virus (HSV) encephalitis. CASE SUMMARY: A 19-year-old man previously diagnosed with HSV encephalitis presented with a headache...
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A Study of Optimized MRI Parameters for Polymer Gel Dosimetry

Cho SJ, Chung YL, Lee SH, Huh HD, Choi JH, Park SI, Shim SJ, Kwon SI

  • KMID: 2425218
  • Korean J Med Phys.
  • 2012 Jun;23(2):71-80.
In order to verify exact dose distributions in the state-of-the-art radiation techniques, a newly designed three-dimensional dosimeter and technique has been took strongly into consideration. The main purpose of our...
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Long-Term Changes in Visual Acuity and Foveal Thickness after Vitrectomy for Idiopathic Epiretinal Membrane

Hwang DJ, Na KI, Kwon SI, Park IW

  • KMID: 2338086
  • J Korean Ophthalmol Soc.
  • 2012 Mar;53(3):434-439.
PURPOSE: To evaluate the clinical outcomes of visual acuity and foveal thickness after vitrectomy for an idiopathic epiretinal membrane (ERM). METHODS: We retrospectively reviewed the records of 62 patients (62 eyes)...
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3-Dimensional Dosimetry of Small Field Photon Beam

Jang J, Kwon SI

  • KMID: 1436554
  • Korean J Med Phys.
  • 2012 Mar;23(1):54-61.
A polymer gel dosimeter was fabricated. A 3-dimensional dosimetry experiment was performed in the small field of the photon of the cyberknife. The dosimeter was installed in a head and...
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