نتایج جستجو برای: external beam radiotherapy

تعداد نتایج: 351412  

2009
Mohsen Shahsavari Arman Mashayekhi

Retinoblastoma is the most common primary intraocular malignancy of infancy and childhood with an incidence of 1 in every 20,000 live births.1 During the 20th century, retinoblastoma was uniformly fatal. Early diagnosis and recent advances in the management of retinoblastoma particularly the use of chemo-therapy have improved the prognosis of this fatal disease. Although this neoplasm has one o...

Journal: :Journal of cancer research and therapeutics 2008
S Nirmala Malavika Krishnaswamy M G Janaki Kirthi S Kaushik

Intraocular metastatic tumor is the commonest intraocular malignancy in adults, with uveal tract the commonest site. In nearly 85% of cases the choroid is the afflicted site due to its vascularity. Breast and lung are the common primaries. In breast primaries, this could be the first metastatic disease. This condition should always be kept in mind in patients with visual symptoms. Fundus examin...

2012
Małgorzata Klimek Wacław Wilk Sława Szostek Elżbieta Łuczyńska Tomasz Bieda Zbigniew Kojs Janusz Ryś

AIM OF THE STUDY To present a case of a patient with cervical carcinoma in stage IIA who was diagnosed with pelvic bone sarcoma 28 years after radiotherapy. CASE PRESENTATION A 37-year-old woman with IIA cervix cancer was treated with external beam irradiation and brachytherapy. The patient had undergone conventionally fractionated external beam irradiation using the "box" technique, with the...

2012
Michael A. Gorin Vladislav Gorbatiy Charles Glenn Samir P. Shirodkar Scott M. Castle Merce Jorda Raymond J. Leveillee

Nephron-sparing surgery is currently the standard of care for the management of small renal masses. While both neoadjuvant and adjuvant conventional external beam radiotherapy have failed to demonstrate an oncologic benefit for the treatment of renal cell carcinoma, more recent work aims to explore the utility of stereotactic radiotherapy. We present the case of a 70-year-old woman who failed ...

Journal: :Annals of the Academy of Medicine, Singapore 1998
K M Lee H S Tan M K Leow V K Sethi E J Chua

Forty-five patients with endometrial carcinoma were treated with local postoperative adjuvant radiotherapy during the period 1992 to 1995. Radiotherapy technique comprised both external beam irradiation as well as high-dose-rate vaginal vault brachytherapy. The 5-year overall survival and relapse-free survival rates were 74% and 73%, respectively and poorly differentiated histology grade was as...

2016
Mark Ostyn Siyong Kim Woon-Hong Yeo

One of the most widely used tools in cancer treatment is external beam radiotherapy. However, the major risk involved in radiotherapy is excess radiation dose to healthy tissue, exacerbated by patient motion. Here, we present a simulation study of a potential radiofrequency (RF) localization system designed to track intrafraction motion (target motion during the radiation treatment). This syste...

Journal: :World Journal of Surgical Oncology 2006
Jayant S Vaidya Lynn Walton John Dewar

BACKGROUND Intraoperative radiotherapy (IORT) is promising approach that is being tested in randomised clinical trials. In the Targit (TARGeted Intraopeartive radioTherapy) trial IORT can be delivered at the time of primary surgery or as a second procedure. Patients prefer the single procedure of intraoperative radiotherapy even if it is under general anaesthetic to 6-weeks of daily visits for ...

2018
Emanuela Esposito Michael Douek

Intraoperative radiotherapy (IORT) for breast cancer has challenged the standard external beam radiotherapy (EBRT) and has been shown to be non-inferior for treating early breast cancer in the past decade. Several technologies have been tested for IORT and various randomised controlled trials are still ongoing. Different methods of application of IORT have also been evaluated, from early breast...

Journal: :Annals of oncology : official journal of the European Society for Medical Oncology 2007
A Kong I Simera M Collingwood C Williams H Kitchener

The role of adjuvant radiotherapy in stage I endometrial cancer following surgery remains unclear. The management for these patients varies widely, particularly in stage I patients with different risk factors. Using the methodology of Cochrane Collaboration, we did a systematic and meta-analysis of all know randomised controlled trials which compared adjuvant radiotherapy versus no radiotherapy...

2017
Eva Meyerhof Tanja Sprave Stefan Ezechiel Welte Nils H Nicolay Robert Förster Tilman Bostel Thomas Bruckner Ingmar Schlampp Jürgen Debus Harald Rief

BACKGROUND Radiation therapy (RT) of bone metastases provides an important treatment approach in palliative care treatment concepts. As a consequence of treatment, the extent of radiation-induced toxicity is a crucial feature with consequences to a patient's quality of life. In this context this study aims at reducing the extent of radiation-induced side effects and toxicity by assuming a bette...

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