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Investigation of Varied MR Spectra by TE and Metabolite Amount in the Localized Voxel using the MR Cone-shape Phantom

Woo DC, Kim SS, Rhim HS, Jahng GH, Choe BY

  • KMID: 2244004
  • Korean J Med Phys.
  • 2007 Sep;18(3):179-185.
The purpose of this study is to investigate the spectra of a magnetic resonance spectroscopy (MRS) in accordance with the variance of TE and the volumes of metabolites in a...
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Ultrasonic Bone Densitometer by Measuring the Speed of Sound

Jung MS, Kim YS, Hahn EJ

  • KMID: 2244003
  • Korean J Med Phys.
  • 2007 Sep;18(3):172-178.
An ultrasonic bone densitometer has been developed by measuring speed of sound signal transmitted and received on the skin, not through the horizontal axis but through the vertical one in...
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Evaluation of Skin Dose of Intensity Modulated Radiation Therapy in Breast Cancer Patients

Kim SK, Kim MS, Yun SM

  • KMID: 2244002
  • Korean J Med Phys.
  • 2007 Sep;18(3):167-171.
In the case of radiotherapy following breast conservation therapy for breast cancer patients, the characteristic of skin dose was investigated in the treatment of intensity modulated radiation therapy (IMRT) for...
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A Diffusion-based Model Theory of Passive-Targeted Drug Delivery in Solid Tumors

Choi JH, Kang NL, Choi SD

  • KMID: 2244001
  • Korean J Med Phys.
  • 2007 Sep;18(3):161-166.
A model theory of passive-targeted drug delivery in sphere-shaped solid tumors is introduced on the basis of Fick's law of diffusion, with appropriate boundary and initial conditions. For a uniform...
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Clinical Application of Acute Ischemic Stroke in Perfusion Computed Tomography

Lee JS, Kweon DC, Yoo BG

  • KMID: 2244000
  • Korean J Med Phys.
  • 2007 Sep;18(3):149-160.
Recent advent of 64-multidetctor (MD) CT enables more coverage of Z-axis in the perfusion imaging. The purpose of this study was to evaluate the clinical usefulness of perfusion CT by...
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Construction and Performance Evaluation of Digital Radiographic System

Cho HM, Kim HJ, Nam S, Lee CL, Jung JY

  • KMID: 2243999
  • Korean J Med Phys.
  • 2007 Sep;18(3):144-148.
Current digital radiography systems are rapidly growing in clinical applications. The purpose of this study was to evaluate the characteristics of a mobile digital radiographic system. The performance of the...
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Dose Measurements using Phantoms for Tube Voltage, Tube Current, Slice Thickness in MDCT

Lee CL, Kim HJ, Jeon SS, Nam SR, Cho HM, Jung JY

  • KMID: 2243998
  • Korean J Med Phys.
  • 2007 Sep;18(3):139-143.
The purpose of this study was to measure and evaluate radiation dose for MDCT parameters. Patient dose for various combination of MDCT parameters were experimentally measured, using MDCT (GE light...
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The Evaluation for Attenuation Map using Low Dose in PET/CT System

Nam S, Kim HJ, Cho HM, Jung JY, Lee CL, Lim HS, Park HH

  • KMID: 2243997
  • Korean J Med Phys.
  • 2007 Sep;18(3):134-138.
The current PET/CT system with high quality CT images not only increases diagnostic value by providing anatomic localization, but also shortens the acquisition time for attenuation correction than primary PET...
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A Monte Carlo Simulation for the Newly Developed Head-and-Neck IMRT Phantom: a Pilot Study

Kang SK, Cheong KH, Ju RH, Cho BC, Oh DH, Kim SS, Kim KJ, Bae H, Han Y, Shin EH, Park SH, Lim C

  • KMID: 2243996
  • Korean J Med Phys.
  • 2007 Sep;18(3):126-133.
A head-and-neck phantom was designed in order to evaluate remotely the quality of the delivery dose of intensity modulated radiation therapy (IMRT) in each institution. The phantom is homogeneous or...
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Evaluation of Geometric Correspondence of kV X-ray Images, Electric Portal Images and Digitally Reconstructed Radiographic Images

Cheong KH, Kim KJ, Cho BC, Kang SK, Juh RH, Bae HS, Suh TS

  • KMID: 2243995
  • Korean J Med Phys.
  • 2007 Sep;18(3):118-125.
In this study we estimated a geometric correlation among digitally reconstructed radiographic image (DRRI), kV x-ray image (kVXI) from the On-Board Imager (OBI) and electric portal image (EPI). To verify...
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A Comparison of Peripheral Doses Scattered from a Physical Wedge and an Enhanced Dynamic Wedge

Park JM, Kim HJ, Min JS, Lee JH, Park CI, Ye SJ

  • KMID: 2243994
  • Korean J Med Phys.
  • 2007 Sep;18(3):107-117.
In order to evaluate the radio-protective advantage of an enhanced dynamic wedge (EDW) over a physical wedge (PW), we measured peripheral doses scattered from both types of wedges using a...
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