Evidence map›Paper›PMID 42816139›Full record

ArticleJournal of applied clinical medical physics2026

Deep learning-based dose prediction for stereotactic prostate cancer radiotherapy with CyberKnife.

Hilla Magga, Henri Korkalainen, Tuomas Virén, Janne Heikkilä, Jan Seppälä, Akseli Leino

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Article in Journal of applied clinical medical physics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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6 authors.

Hilla MaggaDepartment of Technical Physics, University of Eastern Finland, Kuopio, Finland.
Henri KorkalainenDepartment of Technical Physics, University of Eastern Finland, Kuopio, Finland.
Tuomas VirénCenter of Oncology, Kuopio University Hospital, Kuopio, Finland.
Janne HeikkiläCenter of Oncology, Kuopio University Hospital, Kuopio, Finland.
Jan SeppäläCenter of Oncology, Kuopio University Hospital, Kuopio, Finland.
Akseli LeinoDepartment of Technical Physics, University of Eastern Finland, Kuopio, Finland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDeep learning-based (DL) approaches have gained interest in predicting dose distributions in radiotherapy of prostate cancer treated with volumetric modulated arc therapy and intensity-modulated radiation therapy. Meanwhile, research on predicting dose distributions in high-precision stereotactic radiotherapy treatments has remained relatively underrepresented. PURPOSE: We aimed to expand the previous studies by developing a DL-based framework for predicting dose distributions for robotic, stereotactic prostate cancer radiotherapy.

methodsWe harnessed a U-Net-based convolutional neural network for predicting clinically achievable dose distributions based on CT images, delineated structures, and distance information from the planning target volume. A dataset of 462 patients treated with CyberKnife (Accuray Inc.) utilizing an Iris collimator was divided into training (70%, n = 323), validation (10%, n = 46), and test (20%, n = 93) sets.

resultsIn the independent test set, the mean absolute error between the mean doses of predictions and clinical plans was 0.63 Gy for the rectum and 1.04 Gy for the bladder.

conclusionsThe proposed U-Net-based model demonstrated the ability to learn and reproduce characteristic dose distributions in CyberKnife prostate cancer radiotherapy. The model may provide patient-specific dose estimates for setting initial planning objectives to assist in automating treatment planning and improving inter-planner consistency.

Indexed as

Deep LearningProstatic NeoplasmsRadiosurgeryRadiotherapy Planning, Computer-AssistedConvolutional Neural NetworksHumansMaleOrgans at RiskRadiotherapy DosageRadiotherapy, Intensity-ModulatedTomography, X-Ray ComputedCyberKnifedeep learningdose predictionprostate cancerradiotherapy

Identifiers

PMID42816139
PMCPMC13626863

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