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Initial Experience of Patient-Specific QA for Wobbling and Line-Scanning Proton Therapy at Samsung Medical Center

Jo K, Ahn SH, Chung K, Cho S, Shin EH, Park S, Hong CS, Kim DH, Lee B, Lee W, Choi DH, Lim DH, Pyo HR, Han Y

PURPOSE: To report the initial experience of patient-specific quality assurance (pQA) for the wobbling and line-scanning proton therapy at Samsung Medical Center. MATERIALS AND METHODS: The pQA results of 89 wobbling...
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The first private-hospital based proton therapy center in Korea; status of the Proton Therapy Center at Samsung Medical Center

Chung K, Han Y, Kim J, Ahn SH, Ju SG, Jung SH, Chung Y, Cho S, Jo K, Shin EH, Hong CS, Shin JS, Park S, Kim DH, Kim HY, Lee B, Shibagaki , Nonaka H, Sasai K, Koyabu Y, Choi C, Huh SJ, Ahn YC, Pyo HR, Lim DH, Park HC, Park W, Oh DR, Noh JM, Yu JI, Song S, Lee JE, Lee B, Choi DH

PURPOSE: The purpose of this report is to describe the proton therapy system at Samsung Medical Center (SMC-PTS) including the proton beam generator, irradiation system, patient positioning system, patient position...
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High Dose Involved Field Radiation Therapy as Salvage for Loco-Regional Recurrence of Non-Small Cell Lung Cancer

Bae SH, Ahn YC, Nam H, Park HC, Pyo HR, Shim YM, Kim J, Kim K, Ahn JS, Ahn MJ, Park K

PURPOSE: To determine the effectiveness of salvage radiation therapy (RT) in patients with loco-regional recurrences (LRR) following initial complete resection of non-small cell lung cancer (NSCLC) and assess prognostic factors...
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Dosimetry by Using EBT2 Film for Total Skin Electron Beam Therapy (TSET)

Hwang UJ, Rah JE, Jeong H, Ahn SH, Kim DW, Lee SY, Lim YG, Yoon M, Shin DH, Lee SB, Park SY, Pyo HR, Chung WK

  • KMID: 2243952
  • Korean J Med Phys.
  • 2010 Mar;21(1):60-69.
For treatment of Total Skin Electron beam Therapy (TSET), measurement of dose at various conditions is need on the contrary to usual radiotherapy. When treating TSET with modified Stanford technique...
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Evaluation of Parotid Gland Function following Intensity Modulated Radiation Therapy for Head and Neck Cancer

Lee SH, Kim TH, Kim JY, Park SY, Pyo HR, Shin KH, Kim DY, Kim JY, Cho KH

  • KMID: 2270820
  • Cancer Res Treat.
  • 2006 Apr;38(2):84-91.
PURPOSE: This study was undertaken to determine the parotid gland tolerance dose levels following intensity modulated radiation therapy (IMRT) for treating patients who suffered with head and neck cancer. MATERIALS AND...
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Gastrointestinal Stromal Tumor of Rectum: A Reoport of 7 Cases

Baik SH, Kim NK, Lee CH, Lee KY, Sohn SK, Cho CH, Kim HG, Pyo HR, Rha SY, Chung HC

  • KMID: 2325052
  • J Korean Surg Soc.
  • 2005 Feb;68(2):117-122.
PURPOSE: Gastrointestinal stromal tumors (GISTs) are rare. The aim of this study is to investigate and describe the clinicopathologic characteristics of rectal GISTs. METHODS: We retrospectively analyzed the medical records...
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Dosimetric Verification of Dynamic Conformal Arc Radiotherapy

Kim TH, Shin DH, Lee DH, Park SY, Yun MG, Shin KH, Pyo HR, Kim JY, Kim DY, Cho KH, Yang DS, Kim CY

  • KMID: 1590874
  • Korean J Med Phys.
  • 2005 Dec;16(4):166-175.
The purpose of this study is to develop the optimization method for adjusting the film isocenter shift and to suggest the quantitative acceptable criteria for film dosimetry after optimization in...
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Evaluation of Xerostomia Following Intensity Modulated Radiotherapy (IMRT) for Head and Neck Cancer Patients

Lee SH, Kim TH, Chie EK, Im HS, Im ES, Ryu JS, Jung YS, Park SY, Kim JY, Pyo HR, Shin KH, Kim DY, Cho KH

  • KMID: 2323827
  • J Korean Soc Ther Radiol Oncol.
  • 2004 Jun;22(2):106-114.
PURPOSE: This study was done to evaluate xerostomia following intensity modulated radiotherapy for patients with head and neck cancer, and to analyze the correlation between the dosimetric parameters and...
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Analysis of Criteria for Tumor Response after Preoperative Chemoradiation Therapy for Locally Advanced Rectal Cancer: Correlation between Tumor Volume Reduction and Histopathologic Downstaging

Kim NK, Pyo HR, Baik SH, Lee KY, Sohn SK, Cho CH, Rha SY, Chung HC

  • KMID: 2334323
  • J Korean Soc Coloproctol.
  • 2004 Oct;20(5):296-302.
PURPOSE: Preoperative chemoradiation treatment (CCRT) for locally advanced rectal cancer has been known to be safe and effective. The aim of study is to find any correlation between tumor volume...
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Combined Chemotherapy and Radiotherapy versus Radiotherapy alone in the Management of Localized Angiocentric Lymphoma of the Head and Neck

Chang SK, Kim GE, Lee SW, Park HC, Pyo HR, Kim JH, Moon SR, Lee HS, Choi EC, Kim KM

  • KMID: 1840726
  • J Korean Soc Ther Radiol Oncol.
  • 2002 Mar;20(1):17-23.
PURPOSE: To clarify the clinical benefit derived from the combined modality therapy (CMT) consisting of chemotherapy (CT) and involved field radiotherapy (RT) for stage I and II angiocentric lymphomas of...
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Bladder Preservation by Combuned Modality Therapy for Invasive Bladder Cancer: A Five-Year Follow-up

Cho JH, Lim J, Seong J, Pyo HR, Koom WS, Suh CO, Hong SJ

  • KMID: 1613502
  • J Korean Soc Ther Radiol Oncol.
  • 2001 Dec;19(4):359-368.
No absract available.
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Effect of Small Dose of Radiation on Induction of Apoptosis in Murine Tumors

Seong J, Pyo HR, Chung EJ, Kim SH, Suh CO

  • KMID: 1557158
  • J Korean Soc Ther Radiol Oncol.
  • 1999 Dec;17(4):307-313.
PURPOSE: To investigate the presence of adaptive response by low dose radiation in murine tumors in relation to radiation induced apoptosis as well as related mechanism. MATERIALS AND METHODS: Syngeneic...
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Analysis of the Payment Rates and Classification of Services on Radiation Oncology

Shin KH, Shin HS, Pyo HR, Lee KC, Lee YT, Myoung HB, Yeom YK

  • KMID: 2196514
  • J Korean Soc Ther Radiol.
  • 1997 Jun;15(2):167-174.
PURPOSE: The main purpose of this study is to develop new payment rates for services of Radiation Oncology, considering costs of treating patients. MATERIAL AND METHODS: A survey of forty...
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Multimodal Approaches in the Patients with Stage I, II non-Hodgkin's Lymphoma of the Head and Neck

Pyo HR, Suh CO, Kim GE, Rho JK

  • KMID: 2196687
  • J Korean Soc Ther Radiol.
  • 1995 Jun;13(2):129-142.
PURPOSE: Traditionally the patients with early stage non-Hodgkin's lymphoma of he head and neck was treated with radiotherapy. But the results were not satisfactory due to distant relapse. Although combined...
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The Role of the Postoperative Adjuvant Radiation Therapy to Primary Site in Rectal Cancer Patients with Synchronous Liver Metastasis

Seong JS, Shin HS, Lee HS, Kim GE, Suh CO, Loh JK, Kim WC, Pyo HR

  • KMID: 2196907
  • J Korean Soc Ther Radiol.
  • 1993 Jun;11(1):103-108.
Among the patients with rectal cancer who entered Yonsei University Hospital for management from Jan. 1980 to Dec. 1990, we selected 23 subjects who were received surgical resection of tumor...
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Brainstem Tumors : Results of 20 Patients Treated with Radiation Therapy

Kim WC, Suh CO, Pyo HR, Loh JJ, Kim GE

  • KMID: 2097338
  • J Korean Soc Ther Radiol.
  • 1992 Jun;10(1):15-20.
A total of 20 patients(male : female=10:10, adult : children=8:12) with brainstem tumors had been received radiation therapy in the Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College...
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