Volumetric Arc Therapy Treatment Plan Dosimetry Correction Method to Account Patient Weight Loss during a Course of Radiation Therapy.

Aim: This study aims to validate volumetric arc therapy (VMAT) plan correction method for a patient's lost weight during the course of radiotherapy.

Materials And Methods: VMAT plans of prostate and head and neck cancers were considered to evaluate dosimetric effects due to external surface changes caused by patient's weight loss during treatment. Accepted VMAT treatment plan was recalculated on the planning computed tomography (CT) with a newly created external contour from cone-beam CT and was compared with the original plan.

QALOG-Pro: A web-based computer program for machine daily log and quality assurance and quality control data management.

Aim Of Study: Computer-based data applications increase the efficiency, ease to access of data, and tidiness, especially in the modern radiotherapy centers. A computer application program is presented here which replaces archaic paper-based daily log (Log Book), quality assurance, and quality control (QA/QC) documentation.

Materials And Methods: QALOG-Pro program is installed on an http://server and accessed using wire free (WiFi) network and run on a tablet device.

Minimizing urinary bladder radiation dose during brachytherapy for carcinoma of the cervix using balloon inflation technique.

Purpose: Radiotherapy is effective in treating cancer of the cervix. However, its success is associated with significant morbidity of the urinary bladder. This study has been designed to reduce the radiotherapy dose from the brachytherapy component of cervical cancer treatment to the urinary bladder to minimize radiation-induced morbidity.