This year’s ASTRO annual meeting saw Siemens Healthineers and Varian focus on artificial intelligence (AI). In this short video, filmed at ASTRO 2021, Lisa-Marie Petzold from Siemens Healthineers explains how AI can support radiotherapy, for example, via the introduction of deep learning-based contouring of organs-at-risk. Varian’s Michelle Nystrom then describes how this autocontouring system integrates seamlessly with the Eclipse treatment planning system. She explains how AI contouring helps provide end-to-end treatment planning that is automated and efficient, without compromising on quality.