Chang Yeol Lee

ORCID: 0000-0001-5639-6591
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About
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Research Areas
  • Advanced Radiotherapy Techniques
  • Radiation Therapy and Dosimetry
  • Radiation Dose and Imaging
  • Medical Imaging Techniques and Applications
  • Advanced X-ray and CT Imaging
  • Cancer Genomics and Diagnostics
  • Text and Document Classification Technologies
  • Breast Cancer Treatment Studies
  • Sentiment Analysis and Opinion Mining
  • Atmospheric Ozone and Climate
  • Photocathodes and Microchannel Plates
  • Spam and Phishing Detection
  • Natural Language Processing Techniques
  • Calibration and Measurement Techniques
  • Radiation Effects in Electronics
  • Advanced Computing and Algorithms
  • Hepatocellular Carcinoma Treatment and Prognosis

Inha University
2014-2019

Inha University Hospital
2017

Dong-Eui University
2010

Praxis (United States)
1998

Accelerated partial breast irradiation (APBI) is a new treatment delivery technique that decreases overall time by using higher fractional doses than conventional fractionation. Here, quantitative analysis study of CyberKnife-based APBI was performed on 10 patients with left-sided cancer who had already finished at the Inha University Hospital. Dosimetric parameters for four kinds plans (3D-CRT, IMRT, VMAT, and CyberKnife) were analyzed compared constraints in NSABP B39/RTOG 0413 protocol...

10.14316/pmp.2018.29.2.73 article EN Progress in Medical Physics 2018-01-01

Purpose This study was designed to evaluate the dosimetric performance of Mobius3D by comparison with an aSi-based electronic portal imaging device (EPID) and Octavius 4D, which are conventionally used for patient-specific prescription dose verification. Methods The conducted using nine patients who were treated volumetric modulated arc therapy. To feasibility verification, we compared QA results EPID 4D verification methods. first phantom dose, second gamma index analysis. Results...

10.14316/pmp.2019.30.4.120 article EN Progress in Medical Physics 2019-01-01

The Korean Radiation Oncology Group (12-02) investigated the outcome of stereotactic ablative radiotherapy for hepatocellular carcinoma ≤5 cm using 60 Gy in three fractions. To evaluate dosimetric differences and compliance a multicenter trial, planning dummy run procedure was performed. All six participating institutions were provided contours two cases. Plans performed following study protocol to cover target volume with minimum 90% prescription dose satisfy constraints organs at risk. We...

10.1093/jjco/hyw156 article EN Japanese Journal of Clinical Oncology 2017-04-13

The dosimetry of very small fields is challenging for several reasons including a lack lateral electronic equilibrium, large dose gradients, and the size detector in respect to field size. objective this work was evaluate suitability new commercial synthetic diamond detector, namely, PTW 60019 microDiamond, cyberknife photon beams 6 different collimator (from 5 mm 30 mm). Measurements included linearity, rate dependence, output factors (OF), percentage depth doses (PDD) off center ratio...

10.14316/pmp.2014.25.4.255 article EN cc-by-nc Progress in Medical Physics 2014-01-01

The purpose of this study is to perform a dosimetric evaluation amplitude-based respiratory gating for the delivery volumetric modulated arc therapy (VMAT). We selected two types breathing patterns, subjectively among patients with respiratory-gated treatment log files. For that showed consistent patterns (CBP) relative 4D CT respiration variability breath-holding position during was observed within thresholds. However, inconsistent (IBP) show differences those CBP. isodose distribution...

10.14316/pmp.2015.26.3.127 article EN cc-by-nc Progress in Medical Physics 2015-01-01

Purpose: The purpose of this work is to evaluate the dosimetric influence in gated volumetric modulated arc therapy. Methods: This study performed three liver cancer patients. Execution 4D CT simulation and plan deliveries on one‐dimensional respiratory motion phantom were based patient's trace data sets. We chose regular irregular amplitude patterns among patient respiratory‐gated treatment log file. Dose distributions evaluated using EBT3 film by comparing delivery with static delivery....

10.1118/1.4888106 article EN Medical Physics 2014-05-29

The Naval Research Laboratory has built five UV spectrographs for the Air Force Defense Meteorological Satellite Program. These sensors, known as Special Sensor Limb Imager, will provide limb observation of airglow emissions from 75 to 750 km over spectral range 800 1700 angstroms. Each spectrograph employs an imaging detector with a micro-channel plate intensifier and wedge strip anode. detectors are windowless require hermetically sealed door mechanisms prevent water vapor destroying...

10.1117/12.330314 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 1998-11-10
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