نتایج جستجو برای: hdr brachytherapy

تعداد نتایج: 9646  

2015
Alexander Muacevic John R Adler Mahadev Potharaju Ravishankar Subramanaiam Murali Venkataraman Karthikeyan Perumal Balasubramaniam Ramakrishnan Ramakrishna Vangara Sathiya Reddy

BACKGROUND To report the clinical outcome after a single implant, high dose rate (HDR) brachytherapy in early prostate cancer. MATERIALS AND METHODS All clinically localized prostate cancer patients who underwent high-dose rate (HDR) brachytherapy as monotherapy (no external beam radiotherapy) from February 2006 to September 2011 were analyzed prospectively. Acute and chronic toxicity were as...

2018
Mahadev Potharaju Hemanth Raj E Manavalan Muthukumaran Murali Venkataraman Bhargavi Ilangovan Selvan Kuppusamy

Purpose To evaluate long-term outcome of high-dose-rate brachytherapy and perioperative brachytherapy in early mobile tongue cancer. Material and methods Seventy-three patients with clinically staged T1/T2 N0 M0 of mobile tongue cancer were studied retrospectively. Between January 2000 and September 2010, 47 patients underwent high-dose-rate brachytherapy (HDR-BT) alone and 26 patients underw...

2012
Antony L Palmer Margaret Bidmead Andrew Nisbet

PURPOSE A survey of quality control (QC) currently undertaken in UK radiotherapy centres for high dose rate (HDR) and pulsed dose rate (PDR) brachytherapy has been conducted. The purpose was to benchmark current accepted practice of tests, frequencies and tolerances to assure acceptable HDR/PDR equipment performance. It is 20 years since a similar survey was conducted in the UK and the current ...

Journal: :Aesthetic surgery journal 2017
Don Hoang Robert Reznik Matt Orgel Quanlin Li Amin Mirhadi David A Kulber

BACKGROUND Surgically excised keloids reportedly recur at a rate of >45%. Post-excision radiation (RT) has been delivered via external beam radiotherapy (EBRT) or interstitial high dose rate (HDR) brachytherapy. Despite historical data showing 10% to 20% keloid recurrences with post-excision RT, there is a paucity of high-quality evidence comparing keloid recurrences between the two RT modaliti...

Journal: :Medical physics 1998
H D Kubo G P Glasgow T D Pethel B R Thomadsen J F Williamson

The goals of this task group are to examine the current high dose-rate (HDR) treatment delivery practices and to prepare a document to assure safe delivery of HDR treatments. The document consists of detailed HDR procedures for design of an HDR brachytherapy program, staffing and training, treatment specific quality assurance, and emergency procedures. The document provides an extensive quality...

2015
Afshin Rakhsha Amir Shahram Yousefi Kashi Seied Mohsen Hoseini

BACKGROUND Cervical cancer remains to be a major health problem and cancer-related cause of death among women in developing countries such as Iran where the most cases are diagnosed in locally advanced stage. OBJECTIVES This cross sectional-analytic study aims to report outcome 154 patients with carcinoma of cervix were treated with external beam radiation therapy (EBRT) and high-dose-rate (H...

2009
Alfredo Polo

Interstitial brachytherapy represents the treatment of choice for small tumours, regionally localized in the oral cavity and the oropharynx. In the technical setting, continuous low-dose-rate (LDR) brachytherapy represented for many years the gold standard for administering radiation in head and neck brachytherapy. Large series of head and neck cancer patients treated with LDR brachytherapy hav...

2014
Manabu Aoki Kenta Miki Masahito Kido Hiroshi Sasaki Wataru Nakamura Yoshikazu Kijima Masao Kobayashi Shin Egawa Chihiro Kanehira

Trimodality therapy consisting of high dose rate (HDR) brachytherapy combined with external beam radiation therapy (EBRT), neoadjuvant hormonal therapy (NHT) and adjuvant hormonal therapy (AHT) has been used to treat localized high-risk prostate cancer. In this study, an analysis of patients receiving the trimodality therapy was performed to identify prognostic factors of biochemical relapse-fr...

Journal: :Tumori 2009
Luigi De Cicco Andrea Vavassori Federica Cattani Barbara A Jereczek-Fossa Roberto Orecchia

No standard treatment exists for locally relapsed prostate cancer after primary external beam radiotherapy with no evidence of distant metastases. Radical prostatectomy, brachytherapy, cryotherapy and high-intensity focused ultrasound are currently used as local salvage treatments. Data on the safety and effectiveness of high dose rate (HDR) brachytherapy in this scenario are limited. We report...

2016
Sang Hun Shin Young Beom Song Mingeon Kim Hye Jin Kim Wook Jae Yoo Kyoung Won Jang Bongsoo Lee

In this study, we fabricated a Cerenkov fiber-optic dosimeter (CFOD) without any scintillator to measure Cerenkov radiation signals owing to gamma-rays. The relative depth dose (RDD) distributions of Ir-192 HDR brachytherapy source were obtained by using the CFOD based on a subtraction method and the RDD curve was compared with the simulation result of Monte Carlo N-particle extended transport ...

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