نتایج جستجو برای: tangential radiotherapy

تعداد نتایج: 68946  

E. Alhogaraty, M. Al-Daly, S. Talima,

Background: Due to the current trends towards replacing axillary dissection with radiotherapy, the need for more precise definition for different nodal stations becomes a must to ensure safe and adequate dose coverage. So, our study aimed to evaluate the coverage of axillary nodal volumes based on Project on Cancer of the Breast (PROCAB) guidelines, for cases previously treated with our standar...

Journal: :iranian journal of medical physics 0
bagher farhood medical physics department, faculty of medicine, mashhad university of medical sciences, mashhad, iran mohammad hasan emranpour shahid rajaie babolsar radiotherapy center, babolsar, iran navid nekoui department of statistics, mashhad university of medical sciences, mashhad, iran

introduction the first medical intervention for many breast cancer patients is breast conserving surgery (bcs) and/or modified radical mastectomy (mrm). most of these patients undergo radiation therapy, following surgery. the most common side-effect of breast radiotherapy is skin damage. in the present study, the severity of acute skin changes and the underlying causes were investigated in pati...

2015
Harumitsu Hashimoto Motoko Omura Kengo Matsui Yuki Mukai Hideyuki Hongo Wataru Yamakabe Kaori Saito Miwa Yoshida

TomoDirect (TD) is an intensity-modulated radiotherapy system that uses a fixed gantry angle instead of rotational beam delivery. Here, we investigated the effect of the multiple beam technique of TomoDirect on dose distribution compared with commonly-used tangential beams. We included 45 consecutive patients with right breast cancer who underwent postoperative radiotherapy in our institute in ...

2017
Macinley Butson Susan Carroll Martin Butson Robin Hill

During breast radiotherapy treatment, the contralateral breast receives radiation doses to the skin and subcutaneous tissue caused mainly from incident electron contamination and low energy photon scatter radiation. Measurements have shown that for a typical hybrid tangential treatment, these dose levels can be up to 17% of maximum applied prescription dose if no shielding is used during the tr...

2017
Uwe Schneider Marina Ernst Matthias Hartmann

The probability for a complication after radiotherapy is usually a function of dose and volume in the organ or tissue of interest. In most epidemiological studies the risk for a complication is stratified in terms of dose, but not irradiated volume. We show that the obtained risk cannot generally be applied to radiotherapy patients.The epidemiological data of Darby et al. (N Engl J Med 368:2527...

Bagher Farhood, Courtney Knaup Kamal Mohammadi Asl Mohammad Hasan Emranpour, Navid Nekoui, Seyed Rabie Mahdavi

Introduction The first medical intervention for many breast cancer patients is breast conserving surgery (BCS) and/or modified radical mastectomy (MRM). Most of these patients undergo radiation therapy, following surgery. The most common side-effect of breast radiotherapy is skin damage. In the present study, the severity of acute skin changes and the underlying causes were investigated in pati...

2013
Guang-Hua Jin Li-Xin Chen Xiao-Wu Deng Xiao-Wei Liu Ying Huang Xiao-Bo Huang

BACKGROUND AND PURPOSES To compare the dosimetry for the left-sided breast cancer treatment using five different radiotherapy techniques. MATERIALS AND METHODS Twenty patients with left sided breast cancer were treated with conservative surgery followed by radiotherapy. They were planned using five different radiotherapy techniques, including: 1) conventional tangential wedge-based fields (TW...

2017
Dominique Mathieu Nazanin Shahvary Nicolas Côté Kerianne Boulva Léamarie Meloche-Dumas Toni Vu Erica Patocskai Christina Bernier David Roberge Israel Fortin

A 43-year-old premenopausal female presented with a multicentric infiltrating lobular carcinoma of the left breast with axillary nodes metastasis. She underwent modified radical mastectomy with axillary lymph node dissection (level I and II) followed by a mixed autologous latissimus dorsi flap reconstruction with the addition of prosthesis. The final pathological analysis revealed a 6 cm invasi...

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