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2019 | OriginalPaper | Buchkapitel

Fully Automatic Segmentation for Ischemic Stroke Using CT Perfusion Maps

verfasst von : Vikas Kumar Anand, Mahendra Khened, Varghese Alex, Ganapathy Krishnamurthi

Erschienen in: Brainlesion: Glioma, Multiple Sclerosis, Stroke and Traumatic Brain Injuries

Verlag: Springer International Publishing

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Abstract

We propose an algorithm for automatic segmentation of ischemic lesion using CT perfusion maps. Our method is based on encoder-decoder fully convolutional neural network approach. The pre-processing step involves skull stripping and standardization of perfusion maps and extraction of slices with lesions as the training data. These CT perfusion maps are used to train the proposed network for automatic segmentation of stroke lesions. The network is trained by minimizing the weighted combination of cross entropy and dice losses. Our algorithm achieves 0.43, 0.53 and 0.45 Dice, precision, and recall respectively on challenge test data set.

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Metadaten
Titel
Fully Automatic Segmentation for Ischemic Stroke Using CT Perfusion Maps
verfasst von
Vikas Kumar Anand
Mahendra Khened
Varghese Alex
Ganapathy Krishnamurthi
Copyright-Jahr
2019
DOI
https://doi.org/10.1007/978-3-030-11723-8_33