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- W2964151353 abstract "Image-guided radiation therapy can benefit from accurate motion tracking by ultrasound imaging, in order to minimize treatment margins and radiate moving anatomical targets, e.g., due to breathing. One way to formulate this tracking problem is the automatic localization of given tracked anatomical landmarks throughout a temporal ultrasound sequence. For this, we herein propose a fully-convolutional Siamese network that learns the similarity between pairs of image regions containing the same landmark. Accordingly, it learns to localize and thus track arbitrary image features, not only predefined anatomical structures. We employ a temporal consistency model as a location prior, which we combine with the network-predicted location probability map to track a target iteratively in ultrasound sequences. We applied this method on the dataset of the Challenge on Liver Ultrasound Tracking (CLUST) with competitive results, where our work is the first to effectively apply CNNs on this tracking problem, thanks to our temporal regularization." @default.
- W2964151353 created "2019-07-30" @default.
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- W2964151353 date "2019-04-01" @default.
- W2964151353 modified "2023-09-30" @default.
- W2964151353 title "Siamese Networks With Location Prior for Landmark Tracking in Liver Ultrasound Sequences" @default.
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- W2964151353 doi "https://doi.org/10.1109/isbi.2019.8759382" @default.
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