Pre-treatment and in-vivo dosimetry of Helical Tomotherapy (HT) treatment plans by using the Dosimetry Check system coupled to HT detectors
نویسندگان
چکیده
Purpose: In radiotherapy, the proper way to ensure that the dose delivered to a patient is correct and strongly agree with that simulated by his treatment plan currently requires a pre-treatment dosimetric verification. Although this procedure can be realised by using a combined detectorphantom system to monitor the patient plan dose delivered on a phantom, the quality of the entire treatment can not be completely certified since the dose is not directly monitored during each daily treatment. The availability of a system that could monitor the dose in real time during the patient treatment would strongly increase the patient radiotherapy safety. The Dosimetry Check software (Math Resolution, LLC, Maryland) is one of these medical device which is capable of evaluating either pre-treatment or in-vivo patient plan dosimetry by using the on-board imaging detectors of the treatment unit. The purpose of the study is to assess the proper functioning of the DC software, coupled to the mega-voltage (MV) detectors of an helical Tomotherapy (HT) unit, to verify different patient plans in either pre-treatment and in-vivo modality.
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