Search Results for author: Endre Grøvik

Found 5 papers, 0 papers with code

Random Bundle: Brain Metastases Segmentation Ensembling through Annotation Randomization

no code implementations23 Feb 2020 Darvin Yi, Endre Grøvik, Michael Iv, Elizabeth Tong, Greg Zaharchuk, Daniel Rubin

We introduce a novel ensembling method, Random Bundle (RB), that improves performance for brain metastases segmentation.

Segmentation

Brain Metastasis Segmentation Network Trained with Robustness to Annotations with Multiple False Negatives

no code implementations MIDL 2019 Darvin Yi, Endre Grøvik, Michael Iv, Elizabeth Tong, Greg Zaharchuk, Daniel Rubin

Even with a simulated false negative rate as high as 50%, applying our loss function to randomly censored data preserves maximum sensitivity at 97% of the baseline with uncensored training data, compared to just 10% for a standard loss function.

Handling Missing MRI Input Data in Deep Learning Segmentation of Brain Metastases: A Multi-Center Study

no code implementations27 Dec 2019 Endre Grøvik, Darvin Yi, Michael Iv, Elizabeth Tong, Line Brennhaug Nilsen, Anna Latysheva, Cathrine Saxhaug, Kari Dolven Jacobsen, Åslaug Helland, Kyrre Eeg Emblem, Daniel Rubin, Greg Zaharchuk

A deep learning based segmentation model for automatic segmentation of brain metastases, named DropOut, was trained on multi-sequence MRI from 100 patients, and validated/tested on 10/55 patients.

Segmentation

MRI Pulse Sequence Integration for Deep-Learning Based Brain Metastasis Segmentation

no code implementations18 Dec 2019 Darvin Yi, Endre Grøvik, Michael Iv, Elizabeth Tong, Kyrre Eeg Emblem, Line Brennhaug Nilsen, Cathrine Saxhaug, Anna Latysheva, Kari Dolven Jacobsen, Åslaug Helland, Greg Zaharchuk, Daniel Rubin

We illustrate not only the generalizability of the network but also the utility of this robustness when applying the trained model to data from a different center, which does not use the same pulse sequences.

Small Data Image Classification

Deep Learning Enables Automatic Detection and Segmentation of Brain Metastases on Multi-Sequence MRI

no code implementations18 Mar 2019 Endre Grøvik, Darvin Yi, Michael Iv, Elisabeth Tong, Daniel L. Rubin, Greg Zaharchuk

For an optimal probability threshold, detection and segmentation performance was assessed on a per metastasis basis.

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