Critically analyse and evaluate the level of accuracy of the host centre verification protocol using MV single tangential imaging when compared to daily KV/KV imaging and volumetric images (CBCT) for whole breast radiotherapy

The paper aims to complete a literature review and analyse the outcomes of introducing image-guided radiotherapy (IGRT) for patients diagnosed with early breast cancer. At the author’s host centre, breast cancer patients are treated with hypofractionated radiotherapy (RT) after breast-conserving surgery. Electronic portal images (EPIs) are acquired daily before treatment delivery. The images are matched against reconstructed radiographs (DRRs), and a no-action level (NAL) protocol is applied. Originally written for the GART RADIATION ARC NEWSLETTER platform