Radiotherapy treatment planning using microdose functions

Abstract

Techniques for generating radiotherapy treatment plan parameters are provided. The technology comprises the following steps: receiving radiotherapy treatment plan information; processing the radiotherapy treatment plan information to estimate one or more radiotherapy treatment plan parameters based on processing of an output of the sub-processing dependent on the derivative of the estimated dose calculation; and generating a radiotherapy treatment plan using the estimated one or more radiotherapy treatment plan parameters.

Description

[0001] priority claim [0002] This application claims the benefit of priority to US Application Serial No. 16 / 512,938, filed July 16, 2019, which is incorporated herein by reference in its entirety. technical field [0003] The present disclosure generally relates to generating radiation therapy or radiotherapy treatment plans. Background technique [0004] Radiation therapy is used to treat cancer and other diseases in mammalian (eg, humans and animals) tissues. The direction and shape of the radiation beam should be precisely controlled to ensure that the tumor receives the prescribed radiation, and the beam should be placed so as to minimize damage to surrounding healthy tissue (often referred to as organ at risk (OAR)). A treatment plan can be used to control radiation beam parameters, and a radiation therapy device achieves treatment by delivering a spatially varying dose distribution to the patient. [0005] Traditionally, for each patient, optimization techniques c...

AI Technical Summary

Problems solved by technology

This task can be a time-consuming trial-and-error process that is complicated by the variety of OARs, as the complexity of the process increases as the number of OARs increases (for example, 21 OARs are typically segmented in head and neck treatments)

OARs far from the tumor may be vulnerable to radiation, whereas OARs close to or overlapping the target tumor may not be spared

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