In this work, we apply an attention-gated network to real-time automated scan plane detection for fetal ultrasound screening. Scan plane detection in fetal ultrasound is a challenging problem due the poor image quality resulting in low interpretability for both clinicians and automated algorithms. To solve this, we propose incorporating self-gated soft-attention mechanisms. A soft-attention mechanism generates a gating signal that is end-to-end trainable, which allows the network to contextualise local information useful for prediction. The proposed attention mechanism is generic and it can be easily incorporated into any existing classification architectures, while only requiring a few additional parameters. We show that, when the base network has a high capacity, the incorporated attention mechanism can provide efficient object localisation while improving the overall performance. When the base network has a low capacity, the method greatly outperforms the baseline approach and significantly reduces false positives. Lastly, the generated attention maps allow us to understand the model's reasoning process, which can also be used for weakly supervised object localisation.
Attention-Gated Networks for Improving Ultrasound Scan Plane Detection
Jo Schlemper,O. Oktay,Liang Chen,J. Matthew,C. Knight,Bernhard Kainz,Ben Glocker,D. Rueckert
Published 2018 in International Conference on Medical Image Computing and Computer-Assisted Intervention
ABSTRACT
PUBLICATION RECORD
- Publication year
2018
- Venue
International Conference on Medical Image Computing and Computer-Assisted Intervention
- Publication date
2018-04-15
- Fields of study
Medicine, Computer Science
- Identifiers
- External record
- Source metadata
Semantic Scholar
CITATION MAP
EXTRACTION MAP
CLAIMS
- No claims are published for this paper.
CONCEPTS
- No concepts are published for this paper.
REFERENCES
Showing 1-33 of 33 references · Page 1 of 1