Methods for treatment plan verification

Abstract

A method for radiotherapy treatment plan verification during online adaptive radiotherapy treatment. A pre-treatment cone beam computed tomography, CBCT, image of a patient is obtained. The treatment plan is then adapted based on the CBCT image and a first portion of the adapted treatment plan is delivered. Dose data is obtained from the first delivery and a dosimetric value associated with quality assurance of the adapted treatment plan is calculated. If the dosimetric value is within an acceptable range, the method further comprises delivering a second portion of the adapted treatment plan. If the dosimetric value is outside said range, delivery of the adapted treatment plan is stopped. [Fig 1] [Figure 1]