Radiotherapy treatment planning
نویسنده
چکیده
In radical radiotherapy treatment we aim to accurately deliver a lethal dose of radiation to tumour cells while sparing any surrounding normal tissues. Radiotherapy treatment planning is the process undertaken to determine the most appropriate way to deliver the radiation in order to meet the clinical prescription. Rapid advances in technology and computing, particularly in relation to imaging, beam modelling and dose calculation for treatment planning, and advances in our radiotherapy delivery systems, have led to significant advances in our ability to conform differing radiation dose levels to ever more complex target volumes, with more efficient sparing of the sensitive normal tissues and organs at risk. This in turn can lead to the possibility of dose escalation, a reduction in the toxicity associated with the radiotherapy treatment and ultimately improved outcomes for patients. While the systems available to perform accurate treatment planning have evolved over time, the requirements remain the same: • A form of patient model and the means to accurately delineate target volumes and other critical or normal tissue structures within that patient model • A beam model to simulate what happens when radiation beams are applied to the patient • A means of accurately calculating the resulting dose within the patient and determining the treatment machine parameters required to deliver that dose • A means of visualising and evaluating the dose distributions within the patient.
منابع مشابه
Comparing the results of 3D treatment planning and practical dosimetry in craniospinal radiotherapy using Rando phantom
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