نتایج جستجو برای: small field radiotherapy

تعداد نتایج: 1564366  

Journal: :The New England journal of medicine 2003
Berthe M P Aleman John M M Raemaekers Umberto Tirelli Roberto Bortolus Mars B van 't Veer Marnix L M Lybeert Jo J Keuning Patrice Carde Théodore Girinsky Richard W M van der Maazen Radka Tomsic Marjeta Vovk Achilles van Hoof Geertrui Demeestere Pieternella J Lugtenburg José Thomas Wilfried Schroyens Koenraad De Boeck Johanna W Baars Johanna C Kluin-Nelemans Christian Carrie Malek Aoudjhane Dominique Bron Houchingue Eghbali Wilma G J M Smit Jacobus H Meerwaldt Anton Hagenbeek Antonella Pinna Michel Henry-Amar

BACKGROUND The use of involved-field radiotherapy after chemotherapy for advanced Hodgkin's lymphoma is controversial. METHODS We randomly assigned patients with previously untreated stage III or IV Hodgkin's lymphoma who were in complete remission after hybrid chemotherapy with mechlorethamine, vincristine, procarbazine, prednisone, doxorubicin, bleomycin, and vinblastine (MOPP-ABV) to recei...

F. Bouzarjomehri, M. Rezaie Yazdi,

Background: The radiation dose received by contralateral breast (CLB) is one of the concerns of breast radiotherapy, because it may lead to the induction of secondary breast cancer. The aim of this study was to evaluate the CLB surface dose in the breast treatment in Yazd radiotherapy center. Materials and Methods: The surface dose of CLB was measured using TLD dosimetry in 50 cancer breast pat...

Journal: :iranian journal of radiation research 0
y.j. park department of radiation oncology, ansan hospital, korea university medical center, ansan, republic of korea w.s. yoon department of radiation oncology, ansan hospital, korea university medical center, ansan, republic of korea j.a. lee department of radiation oncology, ansan hospital, korea university medical center, ansan, republic of korea n.k. lee department of radiation oncology, ansan hospital, korea university medical center, ansan, republic of korea s. lee department of radiation oncology, ansan hospital, korea university medical center, ansan, republic of korea d.s. yang department of radiation oncology, ansan hospital, korea university medical center, ansan, republic of korea

background: to determine which radiotherapy parameters are associated with the tumor response of locally advanced non-small cell lung cancer (nsclc) patients undergoing concurrent chemoradiotherapy. materials and methods: thirty one patients with iiia/iiib nsclc underwent chemoradiotherapy with a median dose of 63 gy. on our actual treatments, we made radiotherapy planning to cover the planning...

Journal: :Photodiagnosis and photodynamic therapy 2009
Heike J Nyst I Bing Tan Fiona A Stewart Alfons J M Balm

The mainstay treatments for head and neck carcinomas are surgery, radiotherapy and chemotherapy. These treatment options may be associated with considerable complications. Radical radiotherapy and chemotherapy can generally be employed only once, which presents difficulties in cases of recurrent disease or second primaries within the irradiated field. Salvage surgery at the same site is often d...

Ahad Zainali, Leila Mahani

Introduction: Inclusion of inhomogeneities such as air-filled cavities in the head and neck treatment fields may result in potential dosimetric disagreement which was caused by electronic disequilibrium. Most of treatments planning systems (TPS) are not able to predict dose distribution of inhomogeneous regions accurately. EBT2 films are used frequently in radiotherapy quality ass...

2014
SACHIKA NOGI HIDETSUGU NAKAYAMA YU TAJIMA MITSURU OKUBO RYUJI MIKAMI SHINJI SUGAHARA SOICHI AKATA KOICHI TOKUUYE

Cryptogenic organizing pneumonia (COP) following radiotherapy is occasionally diagnosed as radiation pneumonitis or bacterial pneumonia. The current study presents two cases of COP following radiotherapy: A 48-year-old premenopausal female with breast cancer and an 84-year-old male with non-small cell lung cancer. In the cases of breast cancer and lung cancer, patients were first diagnosed with...

Journal: :Journal of the National Cancer Institute 1996
S M Bentzen J Z Skoczylas M Overgaard J Overgaard

BACKGROUND Tamoxifen is an anti-estrogen with proven efficacy and low toxicity in the treatment of breast cancer. However, tamoxifen has been shown to exert a number of nonhormonal as well as hormonal effects. One nonhormonal effect of tamoxifen is the induction of transforming growth factor-beta (TGF-beta) secretion. TGF-beta has been implicated in the pathogenesis of radiation-induced fibrosi...

Journal: :Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology 2006
Carolyn McKerracher David I Thwaites

BACKGROUND AND PURPOSE Solid-state detectors such as diodes and diamonds are useful radiation detectors, particularly for small field measurements, such as in stereotactic dosimetry or in the small sub-field measurements required for intensity modulated radiotherapy (IMRT) . In all small field measurements, positioning of the detector is critical. Generally it is assumed that the center of the ...

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