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Improvement of the Dose Calculation Accuracy Using MVCBCT Image Processing

Kim MJ, Cho W, Kang YN, Suh TS

  • KMID: 1436555
  • Korean J Med Phys.
  • 2012 Mar;23(1):62-69.
The dose re-calculation process using Megavoltage cone-beam CT images is inevitable process to perform the Adaptive Radiation Therapy (ART). The purpose of this study is to improve dose re-calculation accuracy...
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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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Comparison of Intensity Modulated Radiation Therapy Dose Calculations with a PBC and AAA Algorithms in the Lung Cancer

Oh SA, Kang MK, Yea JW, Kim SH, Kim KH, Kim SK

  • KMID: 1436553
  • Korean J Med Phys.
  • 2012 Mar;23(1):48-53.
The pencil beam convolution (PBC) algorithms in radiation treatment planning system have been widely used to calculate the radiation dose. A new photon dose calculation algorithm, referred to as the...
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Mathematical Model for Acousto-Optical Tomography and Its Numerical Simulation

Nam H, Hur J, Kim S, Lee R

  • KMID: 1436552
  • Korean J Med Phys.
  • 2012 Mar;23(1):42-47.
In this paper, Acousto-Optical tomography is modeled by a linear integral equation and an inverse problem involving a diffusion equation in n-spatial dimensions. We make two-step mathematical model. First, we...
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Quality Assurance of Volumetric Modulated Arc Therapy for Elekta Synergy

Shim SJ, Shim JB, Lee SH, Min CK, Cho KH, Shin DO, Choi JH, Park SI, Cho SJ

  • KMID: 1436551
  • Korean J Med Phys.
  • 2012 Mar;23(1):33-41.
For applying the quality assurance (QA) of volumetric modulated arc therapy (VMAT) introduced in Eulji Hospital, we classify it into three different QA steps, treatment planning QA, pretreatment delivering QA,...
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Effective Detective Quantum Efficiency (eDQE) Evaluation for the Influence of Focal Spot Size and Magnification on the Digital Radiography System

Kim YS, Park HS, Park SJ, Kim HJ

  • KMID: 1436550
  • Korean J Med Phys.
  • 2012 Mar;23(1):26-32.
The magnification technique has recently become popular in bone radiography, mammography and other diagnostic examination. However, because of the finite size of X-ray focal spot, the magnification influences various imaging...
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Dosimetric Effect on Selectable Optimization Parameters of Volumatric Modulated Arc Therapy

Jung JY, Shin YJ, Sohn SC, Kim YR, Min JW, Suh TS

  • KMID: 1436549
  • Korean J Med Phys.
  • 2012 Mar;23(1):15-25.
The aim of this study is to evaluate plan quality and dose accuracy for Volumetric Modulated Arc Therapy (VMAT) on the TG-119 and is to investigate the effects on variation...
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Optimization of Image Tracking Algorithm Used in 4D Radiation Therapy

Park J, Shin E, Han Y, Park H, Lee J, Choi DH

  • KMID: 1436548
  • Korean J Med Phys.
  • 2012 Mar;23(1):8-14.
In order to develop a Patient respiratory management system includinga biofeedback function for4-dimentional radiation therapy, this study investigated anoptimal tracking algorithmfor moving target using IR (Infra-red) camera as well as...
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Development of Respiratory Training System Using Individual Characteristic Guiding Waveform

Kang SH, Yoon JW, Kim TH, Suh TS

  • KMID: 1436547
  • Korean J Med Phys.
  • 2012 Mar;23(1):1-7.
The purpose of this study was to develop the respiratory training system using individual characteristic guiding waveform to reduce the impact of respiratory motion that causes artifact in radiotherapy. In...
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