نتایج جستجو برای: HDR Brachytherapy

تعداد نتایج: 9646  

آقامیری, محمودرضا , باغانی, حمیدرضا , حسینی دقیق, محسن , مهدوی, ربیع ,

Background and purpose: Dose calculations in trachea HDR brachytherapy treatment planning systems are greatly based on TG-43 protocol in which, all materials including air inside trachea are treated the same as water. The aim of this study was to survey the effect of air on dose calculations of Flexiplan treatment planning system in trachea HDR brachytherapy. Materials and methods: To ev...

2016
Ning Wu Hongfu Zhao Dongmei Han Guanghui Cheng Zhipeng Zhao Yuxin Ge

PURPOSE To report the treatment effect of image-guided high-dose-rate (HDR) interstitial brachytherapy for refractory recurrence of papillary thyroid cancer (PTC). CASE REPORT This 66-year-old female presented with recurrence 5 years after thyroidectomy for PTC. Despite external irradiation and radioactive (131)I, the lesion expanded as 3.7 × 3.0 × 2.3 cm(3) and 2.0 × 1.5 × 1.5 cm(3). The loc...

Journal: :Nihon rinsho. Japanese journal of clinical medicine 2008
P Hoskin

High dose rate (HDR) afterloading brachytherapy in the management of localised prostate cancer has practical, physical and biological advantages over low dose rate seed brachytherapy. There are no free live sources used, no risk of source loss and since the implant is a temporary procedure following discharge no issues with regard to radioprotection use of existing facilities. Adequate coverage...

Journal: :iranian journal of radiation research 0
m.a. gadhi bahawalpur institute of nuclear medicine and oncology (bino) bahawalpur, pakistan s.a. buzdar department of physics, the islamia university of bahawalpur, pakistan m. afzal department of physics, the islamia university of bahawalpur, pakistan sh. fatmi bahawalpur institute of nuclear medicine and oncology (bino) bahawalpur, pakistan m.s. akhtar bahawalpur institute of nuclear medicine and oncology (bino) bahawalpur, pakistan a.h. nizamani department of physics, university of sind, jamshoro, hyderabad, pakistan

background: the effectiveness and safety of brachytherapy treatment is mainly concerned with the calibration of sources and their traceability to internationally accepted standards. secondary standard dosimetry laboratory (ssdl) does not offer calibration of ionization chambers with gamma-ray spectrum of high dose rate source 192ir . this work has been carried out to calibrate the high dose rat...

2011
Yasutaka Noda Morio Sato Shintaro Shirai Kazushi Kishi Takeshi Inagaki Takeshi Mori Isao Hara

The purpose of this study was to evaluate the efficacy and safety of high-dose-rate (HDR) brachytherapy of a single implant with two fractions plus external beam radiotherapy (EBRT) for hormone-naïve prostate cancer in comparison with radical prostatectomy. Of 150 patients with localized prostate cancer (T1c-T2c), 59 underwent HDR brachytherapy plus EBRT, and 91 received radical prostatectomy. ...

Journal: :Thorax 2001
M R Kramer A Katz A Yarmolovsky D Schifter E Fenig

High dose rate (HDR) endobronchial brachytherapy is a palliative treatment for symptomatic airway obstruction by malignant tumours. We report a novel use of HDR brachytherapy for treating non-malignant bronchial obstruction. The patient had a metal stent placed in a reconstructed airway after a bronchial tear to ensure patency. Granulation tissue formation in and around the stent caused symptom...

2001
M R Kramer D Schifter E Fenig

High dose rate (HDR) endobronchial brachytherapy is a palliative treatment for symptomatic airway obstruction by malignant tumours. We report a novel use of HDR brachytherapy for treating nonmalignant bronchial obstruction. The patient had a metal stent placed in a reconstructed airway after a bronchial tear to ensure patency. Granulation tissue formation in and around the stent caused symptoma...

2013
Yasuo Yoshioka Ken Yoshida Hideya Yamazaki Norio Nonomura Kazuhiko Ogawa

High-dose-rate (HDR) brachytherapy as monotherapy is a comparatively new brachytherapy procedure for prostate cancer. In addition to the intrinsic advantages of brachytherapy, including radiation dose concentration to the tumor and rapid dose fall-off at the surrounding normal tissue, HDR brachytherapy can yield a more homogeneous and conformal dose distribution through image-based decisions fo...

2012
Markus KA Herrmann Tereza Kertesz Tammo Gsänger Eugen Bloch Gerhard Pollul Mohamed Bouabdallaoui Arne Strauss Mareike Herrmann Hans Christiansen Hendrik A Wolff Clemens F Hess Andrea Hille

PURPOSE To evaluate gold marker displacement due to needle insertion during HDR-brachytherapy for therapy of prostate cancer. PATIENTS AND METHODS 18 patients entered into this prospective evaluation. Three gold markers were implanted into the prostate during the first HDR-brachytherapy procedure after the irradiation was administered. Three days after marker implantation all patients had a C...

2013
Jim Meng Mammo Yewondwossen

As a part of routine oesophageal HDR Brachytherapy procedure, treatment planning takes about 45 minutes while patients are under light sedation. Some patients may suffer gagging and/or spasms before the 90-minute brachytherapy procedure complete, and the treatment may need to be aborted. A pre-prepared plan generated before patient’s sedation may reduce the brachytherapy procedure time by 40 mi...

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