Abstract:a 3D convolutional neural network can auto-segment the lens, optic nerves and chiasm on planning CT scans alone for Gamma Knife SRS with similar accuracy to manual contours. Materials/Methods: A dataset of 101 patients treated with Gamma Knife SRS at a single institution for pituitary tumors or skull base meningiomas were collected. High resolution CT and MRI images were fused and the optic nerves and chiasm were contoured by a neuroanatomic expert. These contours were then transferred to the CT image. The dat… Show more
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