Abstract
To describe a useful technique to decrease rectal dose during HDR prostate brachytherapy given as boost to EBRT or as monotherapy. Prostate brachytherapy has evolved in recent years together with the technological and computer development. It has become popular to use high dose rate (HDR) and 3D volumetric planning, using computed tomography (CT) and/or magnetic resonance imaging (MRI), which has help improving accuracy and conformation of treatment and also the capabilities to dose scaling, due to the real visualization of the target and organs at risk (OARS), the use of tomographic images allows to take actions and optimize the therapeutic index, escalate dose into the tumor, and protect at the same time OARs. The dosimetric analysis of a multicentric initial Latin American experience from Chile, Peru and Colombia with patients with prostate cancer diagnosis treated with this premise, using blood as OAR spacer, presented as an alternative to this procedure in developing countries with limited resources.
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