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2016 | OriginalPaper | Buchkapitel

Spatial Aggregation of Holistically-Nested Networks for Automated Pancreas Segmentation

verfasst von : Holger R. Roth, Le Lu, Amal Farag, Andrew Sohn, Ronald M. Summers

Erschienen in: Medical Image Computing and Computer-Assisted Intervention – MICCAI 2016

Verlag: Springer International Publishing

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Abstract

Accurate automatic organ segmentation is an important yet challenging problem for medical image analysis. The pancreas is an abdominal organ with very high anatomical variability. This inhibits traditional segmentation methods from achieving high accuracies, especially compared to other organs such as the liver, heart or kidneys. In this paper, we present a holistic learning approach that integrates semantic mid-level cues of deeply-learned organ interior and boundary maps via robust spatial aggregation using random forest. Our method generates boundary preserving pixel-wise class labels for pancreas segmentation. Quantitative evaluation is performed on CT scans of 82 patients in 4-fold cross-validation. We achieve a (mean ± std. dev.) Dice Similarity Coefficient of 78.01 %±8.2 % in testing which significantly outperforms the previous state-of-the-art approach of 71.8 %±10.7 % under the same evaluation criterion.

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Metadaten
Titel
Spatial Aggregation of Holistically-Nested Networks for Automated Pancreas Segmentation
verfasst von
Holger R. Roth
Le Lu
Amal Farag
Andrew Sohn
Ronald M. Summers
Copyright-Jahr
2016
DOI
https://doi.org/10.1007/978-3-319-46723-8_52