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AI End-to-End Radiation Treatment Planning Under One Second
Artificial intelligence-based radiation therapy (RT) planning has the potential to reduce planning time and inter-planner variability, improving efficiency and consistency in clinical workflows. Most existing automated approaches rely on multiple dose evaluations and corrections, resulting in...
AI End-to-End Radiation Treatment Planning Under One Second
Simon Arberet, Riqiang Gao, Martin Kraus, Florin C. Ghesu, Wilko Verbakel, Mamadou Diallo, Anthony Magliari, Venkatesan Karuppusamy, Sushil Beriwal, REQUITE Consortium, Ali Kamen, Dorin Comaniciu
Artificial intelligence-based radiation therapy (RT) planning has the potential to reduce planning time and inter-planner variability, improving efficiency and consistency in clinical workflows. Most existing automated approaches rely on multiple dose evaluations and corrections, resulting in plan generation times of several minutes. We introduce AIRT (Artificial Intelligence-based Radiotherapy), an end-to-end deep-learning framework that directly infers deliverable treatment plans from CT images and structure contours. AIRT generates single-arc VMAT prostate plans, from imaging and anatomical inputs to leaf sequencing, in under one second on a single Nvidia A100 GPU. The framework includes a differentiable dose feedback, an adversarial fluence map shaping, and a plan generation augmentation to improve plan quality and robustness. The model was trained on more than 10,000 intact prostate cases. Non-inferiority to RapidPlan Eclipse was demonstrated across target coverage and OAR sparing metrics. Target homogeneity (HI = 0.10 ± 0.01) and OAR sparing were similar to reference plans when evaluated using AcurosXB. These results represent a significant step toward ultra-fast standardized RT planning and a streamlined clinical workflow.
This is the kind of AI in radiation oncology that actually matters. >10,000 prostate cases, CT + contours in, deliverable single-arc VMAT plan out in under one second, including leaf sequencing, with dosimetry non-inferior to Eclipse RapidPlan on AcurosXB. Yes, prostate is the easiest possible sandbox, and yes, I want to see this on H&N, pancreas, reirradiation, etc. But it is getting harder to pretend the future of treatment planning is humans spending 45 minutes lovingly nudging objectives around until the DVH looks pretty. Routine planning is going to become a commodity. The useful work shifts to contouring, prescription strategy, QA, and catching the occasional spectacularly stupid machine-generated plan. If this generalizes, bragging about optimization speed is eventually going to sound like bragging that your calculator does division really fast.