The purpose is to compare CT-based dosimetry with International Commission on Radiation Units and Measurements (ICRU 38) bladder and rectum reference points in patients of carcinoma of uterine cervix treated with intracavitary brachytherapy (ICA). Twenty-two consecutive patients were evaluated. Orthogonal radiographs and CT images were acquired and transferred to PLATO planning system. Bladder ...

PURPOSE Intracavitary brachytherapy (ICB) is a widely used technique in the treatment of cervical cancer. In our Institute, we use different reconstructive methods in the conventional planning procedure. The main aim of this study was to compare these methods using critical organ doses obtained in various treatment plans. There is a small difference in the recommendations in selecting bladder d...

background: in intracavitary brachytherapy for gynecological cancers, various techniques are used to locate the anterior rectal wall nearest to the sources but there is no consensus on the best method to do so. this study aimed to compare a technique used routinely in some centers that employs a wire marker to locate the position of the maximum rectal dose point, versus the method recommended b...

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...

BACKGROUND To compare intracavitary brachytherapy (ICBT) planning methods for cervical cancer, based on either orthogonal radiographs (conventional plan) or CT sections (CT plan); the comparison focused on target volume coverage and dose volume analysis of organs at risk (OARs), by representing point doses defined by the International Commission on Radiation Units and Measurement (ICRU) and dos...

PURPOSE To compare International Commission on Radiation Units and Measurements (ICRU) bladder and rectum reference points doses with volumetric doses in 3D intracavitary brachytherapy (ICBT) for cervical cancer. Also to compare bladder, rectum and sigmoid (organs at risk, OARs) volume doses with dose constraints recommended by the (GYN) GEC-ESTRO Working Group. MATERIAL AND METHODS A retrosp...

PURPOSE To compare intracavitary brachytherapy dose estimation for organs at risk (bladder and rectum) based on semi-orthogonal reconstruction of radiographs on non-isocentric X-ray unit and Computed Tomography (CT) - based volumetric planning in cervical cancer. MATERIAL AND METHODS Bladder and rectal points as per International Commission on Radiation Units and Measurements (ICRU) report 38...

Background: In intracavitary brachytherapy for gynecological cancers, various techniques are used to locate the anterior rectal wall nearest to the sources but there is no consensus on the best method to do so. This study aimed to compare a technique used rou nely in some centers that employs a wire marker to locate the posi on of the maximum rectal dose point, versus the method recommended by ...

BACKGROUND CT based brachytherapy allows 3-dimensional (3D) assessment of organs at risk (OAR) doses with dose volume histograms (DVHs). The purpose of this study was to compare computed tomography (CT) based volumetric calculations and International Commission on Radiation Units and Measurements (ICRU) reference-point estimates of radiation doses to the bladder and rectum in patients with carc...

BACKGROUND AND PURPOSE Most of the studies in which medium dose rate (MDR) or high dose rate (HDR) brachytherapy have been used for the treatment of cervical carcinoma were prescribed according to the Manchester system. This study aims to present early results of exclusive radiotherapy, which includes MDR brachytherapy, performed using ICRU 38 recommendations to their full extent. MATERIALS A...