Unsupervised Domain Adaptation with Semantic Consistency Across Heterogeneous Modalities for MRI Prostate Lesion Segmentation

نویسندگان

چکیده

Any novel medical imaging modality that differs from previous protocols e.g. in the number of channels, introduces a new domain is heterogeneous ones. This common scenario rarely considered adaptation literature, which handles shifts across domains same dimensionality. In our work we rely on stochastic generative modeling to translate two at pixel space and introduce loss functions promote semantic consistency. Firstly, cycle-consistency source ensure translation preserves semantics. Secondly, pseudo-labelling loss, where target data source, label them by source-domain network, use generated pseudo-labels supervise target-domain network. Our results show this allows us extract systematically better representations for domain. particular, address challenge enhancing performance VERDICT-MRI, an advanced diffusion-weighted technique, exploiting labeled mp-MRI data. When compared several unsupervised approaches, approach yields substantial improvements, consistently carry over semi-supervised supervised learning settings.

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ژورنال

عنوان ژورنال: Lecture Notes in Computer Science

سال: 2021

ISSN: ['1611-3349', '0302-9743']

DOI: https://doi.org/10.1007/978-3-030-87722-4_9