![]() However, as ART has evolved and expanded beyond these modalities and techniques, the definition has broadened. ![]() 12 The term ‘ adaptive’ was employed due to the similarity to adaptive control in feedback control theory. 1, 2, 11, 3– 10 Research in this field remains very active as the underlying technology - including imaging, tools for adapting the treatment plan, and image registration – continues to evolve and through clinical trials to test the fundamental concepts of ART.ĪRT emerged over 20 years ago as a process to initially control for day-to-day setup error using megavoltage portal imaging and repeat computed tomography (CT) imaging. Adaptive radiotherapy (ART), a process to control for anatomical and functional variation over the treatment course, is in active clinical use in a variety of organ sites.
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