A custom balloon applicator was created to deliver intracavitary high-dose-rate brachytherapy to a patient with a superficial vaginal cancer. The patient was unable to be treated conventionally due to an extremely narrow introitus that prevented the introduction of a conventional cylinder applicator. The custom applicator was constructed by inserting a straight titanium tandem applicator throug...

The importance of assessing the metal-induced artefacts in magnetic resonance imaging (MRI)-guided brachytherapy is growing along with the increasing interest of integrating MRI into the treatment procedure of cervical cancer. Examples of metal objects in use include intracavitary cervical applicators and interstitial needles. The induced artefacts increase the uncertainties in the clinical wor...

PURPOSE In radical radiotherapy for cervical cancer, high-dose-rate (HDR) brachytherapy is commonly used after external beam radiation therapy (EBRT) to deliver a cumulative EQD2 of 80 to 90 Gy to the primary tumor. However, there is less certainty regarding brachytherapy dose contribution to the pelvic lymph nodes. This poses a challenge as to how high a preceding EBRT dose should be prescribe...

International commission of radiation units and measurement point doses to the bladder rectum in carcinoma cervix patients treated with intracavitary brachytherapy department radiotherapy. The aim: evaluate two-dimensional point-based dose planning three-dimensional computed tomography-based dose-volume parameters for high-dose-rate cervical cancer. Materials methods: prospective study done bet...

OBJECTIVE To assess the current situation of high-dose-rate (HDR) brachytherapy for cancer of the cervix in Brazil, regarding apparatuses, planning methods, prescription, fractionation schedule and evaluation of dose in organs at risk. MATERIALS AND METHODS In the period between March/2012 and May/2013, a multiple choice questionnaire was developed and sent to 89 Brazilian hospitals which per...

The technology for construction and application of flexible dosimetric assemblies with LiF:Mg,Ti microcrystals (sizes about 0.1 mm) off-line measurements the spatial distribution absorbed dose inside organs at risk (rectum, urethra, vagina) high rate brachytherapy in oncoginecology has been developed. transfer from usage luminescent dosimeters macro sizes (more than 1 to microdosimetrs mm, comb...

Intracavitary brachytherapy (ICBT) and interstitial brachytherapy (IB) techniques are commonly practiced for treating carcinoma of the cervix, either alone or in combination with external beam radiotherapy. Both these brachytherapy techniques have their own advantages and limitations in terms of tumor coverage and normal tissue sparing. Limited studies have been reported comparing the dosimetri...

PURPOSE The aim of this study was to report the clinical results of uterine cervical cancer patients treated by primary radiation therapy including brachytherapy, and investigate the role of interstitial brachytherapy (ISBT). MATERIAL AND METHODS All consecutive uterine cervical cancer patients who were treated by primary radiation therapy were reviewed, and those who were treated by ISBT wer...

Purpose: Dosimetric analysis and effect of different definitions prescription point “A” to OAR in high dose rate brachytherapy for cervical cancer. Methods Materials: This retrospective comparative dosimetric study is based on the data 25 patients with histologically proven carcinoma treated HDR (high-dose-rate) brachytherapy. Patients received 21 Gy three fractions (7.0 X fractions) A (AMAN, r...