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The Crucial Role of the Establishment of Computed Tomography Density Conversion Tables for Treating Brain or Head/Neck Tumors

Yang SC, Lo SH, Shie LT, Lee SW, Ho SY

Purpose: The relationship between computed tomography (CT) number and electron density (ED) has been investigated in previous studies. However, the role of these measures for guiding cancer treatment remains unclear. Methods:...
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Development of Water-Filled Phantom and Comparision Film Dosimetry for Five Phantoms in Gamma Knife

Choi Y, Chun Kj, Chung HT, kim TH, Choi SH, Jang WI

  • KMID: 2510113
  • Prog Med Phys.
  • 2020 Sep;31(S1):S65.
Purpose: The objective of this study is to investigate the scattering effect of the plastic phantoms by determining FWHM and penumbra from the measurement of absorbed dose profile in Gamma...
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Reduction of Target Volume and the Corresponding Dose for the Tumor Regression Field after Induction Chemotherapy in Locoregionally Advanced Nasopharyngeal Carcinoma

Wang L, Wu Z, Xie D, Zeng R, Cheng W, Hu J, Huang S, Zhou S, Zhong R, Su Y

PURPOSE: This study aims to investigate the feasibility of contouring target volume according to residual tumor and decreasing the dose to the tumor regression field after induction chemotherapy (IC) in...
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Proposal for Comprehensive Quality Control of Heavy-Ion Medical Accelerator

Kim DW, Shin DO, Shin YH, Heo HD

Prior to the introduction of a medical apparatus based on heavy-ion medical accelerator in Korea, a study is needed on quality control in clinical operation for the safe and appropriate...
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Comparison of Temperature Distribution in Agar Phantom and Gel Bolus Phantom by Radiofrequency Hyperthermia

Jung DK, Kim SK, Lee JH, Youn SM, Kim HD, Oh SA, Park JW, Yea JW

The usefulness of Gel Bolus phantom was investigated by comparing the temperature distribution characteristic of the agar phantom produced to investigate the dose distribution characteristic of radiofrequency hyperthermia device with...
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Effect of Low Magnetic Field on Dose Distribution in the Partial-Breast Irradiation

Kim JI, Park SY, Lee YH, Shin KH, Wu HG, Park JM

The aim of this study is to investigate the effect of low magnetic field on dose distribution in the partial-breast irradiation (PBI). Eleven patients with an invasive early-stage breast carcinoma...
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Development of Two-dimensional Prompt-gamma Measurement System for Verification of Proton Dose Distribution

Park JH, Lee HR, Kim CH, Kim SH, Kim S, Lee SB

In proton therapy, verification of proton dose distribution is important to treat cancer precisely and to enhance patients\' safety. To verify proton dose distribution, in a previous study, our team...
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Qualitative Evaluation of 2D Dosimetry System for Helical Tomotherapy

Ma SY, Jeung TS, Shim JB, Lim S

The purpose of this study is to see the feasibility of the newly developed 2D dosimetry system using phosphor screen for helical tomotherapy. The cylindrical water phantom was fabricated with...
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Comparison of the Dose Distributions with Beam Arrangements in the Stereotactic Body Radiotherapy (SBRT) for Primary Lung Cancer

Yea JW

To compare 2 beam arrangements, circumferential equally angles (EA) beams or partially angles (PA) beams for stereotactic body radiation therapy (SBRT) of primary lung cancer for intensity-modulated radiation therapy (IMRT)...
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Review on the Pre-treatment Quality Assurance for Intensity Modulated Radiation Therapy

Han Y

This review paper deals with the current statues of pre-treatment quality assurance conducted for Intensity modulated radiation therapy. Focusing on the issues relevant to two-dimensional verification of absorbed dose distribution,...
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Evaluation of the Accuracy for Respiratory-gated RapidArc

Sung J, Yoon M, Chung WK, Bae SH, Shin DO, Kim DW

  • KMID: 2315754
  • Prog Med Phys.
  • 2013 Jun;24(2):127-132.
The position of the internal organs can change continually and periodically inside the body due to the respiration. To reduce the respiration induced uncertainty of dose localization, one can use...
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Influence of Couch and Collimator on Dose Distribution of RapidArc Treatment Planning for Prostate Cancer in Radiation Therapy

Kim HD, Kim BY, Kim SJ, Yun SM, Kim SK

  • KMID: 2425221
  • Korean J Med Phys.
  • 2012 Jun;23(2):99-105.
We investigated the influence of photon energy, couch and collimator angle differences between arcs on dose distribution of RapidArc treatment planning for prostate cancer. RapidArc plans were created for 6...
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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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Evaluation of Dose Distribution Using a Radiophotoluminescence Glass Dosimeter in Biobeam8000 Gamma Irradiation Device

Shin SH, Lee S, Son K, Lee HH, Kim KB, Jung H, Ji YH

  • KMID: 1451806
  • Korean J Med Phys.
  • 2011 Dec;22(4):198-205.
Gamma irradiator is widely used for cell, animal experiment, irradiation for blood, dose measurement, and education. Biobeam8000 gamma irradiator (STS Steuerungstechnik &. Strahlenschutz GmbH, Braunschweig, Germany, Cs137, 81.4 TBq) that...
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Analysis on the Calculated Dose in the Lung Radiation Surgery Planning Using TomoTherpay

Song JY, Jung JU, Yoon MS, Ahn SJ, Chung WK, Nah BS, Nam TK

  • KMID: 1451803
  • Korean J Med Phys.
  • 2011 Dec;22(4):178-183.
The applicability and feasibility of TomoTherapy in the lung radiation surgery was analyzed by comparison of the calculated dose distribution in TomoTherapy planning with the results of conventional IMRS (intensity...
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Analysis on the Effect of Field Width in the Delineation of Planning Target Volume for TomoTherapy

Song JY, Nah BS, Chung WK, Ahn SJ, Nam TK, Yoon MS, Jung JU

  • KMID: 1460183
  • Korean J Med Phys.
  • 2010 Dec;21(4):323-331.
The Hi-Art system for TomoTherapy allows only three (1.0 cm, 2.5 cm, 5.0 cm) field widths and this can produce different dose distribution around the end of PTV (Planning target...
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Dose Distribution of Intensity Modulated Radiation Therapy in Prostate Cancer

Kim SK, Choi JH, Yun SM

  • KMID: 1460196
  • Korean J Med Phys.
  • 2010 Sep;21(3):298-303.
The aim of this study was to compare the dose distribution of intensity modulated radiation therapy (IMRT) with 3 dimensional conformal radiation therapy (3DCRT) in prostate cancer. The IMRT plan...
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Property of Dose Distribution in Accordance with Dose Rate Variation in Intensity Modulated Radiation Therapy

Kang MK, Kim SJ, Shin HS, Kim SK

  • KMID: 2243941
  • Korean J Med Phys.
  • 2010 Jun;21(2):218-222.
As radiation is irradiated from various directions in intensity modulated radiation therapy (IMRT), longer treatment time than conventional treatment method is taken. In case of the patients who have problem...
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The Clinical Implementation of 2D Dose Distribution QA System for the Patient Specific Respiratory-gated Radiotherapy

Kim JS, Shin E, Shin JS, Ju SG, Han Y, Park HC, Choi DH

  • KMID: 2243931
  • Korean J Med Phys.
  • 2010 Jun;21(2):127-136.
Emerging technologies such as four-dimensional computed tomography (4D CT) is expected to allow clinicians to accurately model interfractional motion and to quantitatively estimate internal target volumes (ITVs) for radiation therapy...
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Comparison of the Dose of the Normal Tissues among Various Conventional Techniques for Whole Brain Radiotherapy

Kang MK

PURPOSE: To compare radiation dose of the brain and lens among various conventional whole brain radiotherapy (WBRT) techniques. MATERIALS AND METHODS: Treatment plans for WBRT were generated with planning computed tomography...
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