Dosimetry, Treatment Planning for BNCT

Studies of recombination chambers filled with nitrogen for BNCT dosimetry

A boron compound is administered intravenously to the patient, in whom it accumulates preferentially in malignant tumour tissues. The tumour is then irradiated with low-energy neutrons produced by a nuclear reactor. The neutrons are moderated in the patient’s sculp and tissues, so mostly they have energy in tumour. Some of the boron atoms absorb neutrons and then, in a very short time, release ...

Gamma Knife Dosimetry & Treatment Planning

Treatment planning systems dosimetry auditing project in Portugal.

BACKGROUND AND PURPOSE The Medical Physics Division of the Portuguese Physics Society (DFM_SPF) in collaboration with the IAEA, carried out a national auditing project in radiotherapy, between September 2011 and April 2012. The objective of this audit was to ensure the optimal usage of treatment planning systems. The national results are presented in this paper. MATERIAL AND METHODS The audit...

Comparing the results of 3D treatment planning and practical dosimetry in craniospinal radiotherapy using Rando phantom

Background: Craniospinal radiotherapy faces technical challenges which are due to the sensitivity of the location in which the gross tumor is, and to organs at risk around planning target volume. Using modern treatment planning systems causes a reduction in the complexities of the treatment techniques. The most effective method to assess the dosimetric accuracy and the validity of the ...

Evaluation of superficial dosimetry between treatment planning system and measurement for several breast cancer treatment techniques.

PURPOSE Dosimetric accuracy in radiation treatment of breast cancer is critical for the evaluation of cosmetic outcomes and survival. It is often considered that treatment planning systems (TPS) may not be able to provide accurate dosimetry in the buildup region. This was investigated in various treatment techniques such as tangential wedges, field-in-field (FF), electronic compensator (eComp),...