Abstract
In 3D echocardiography (3D echo), the image orientation varies depending on the position and direction of the transducer during examination. As a result, when reviewing images the user must initially identify anatomical landmarks to understand image orientation – a potentially challenging and time-consuming task. We automated this initial step by training a deep residual neural network (ResNet) to predict the rotation required to re-orient an image to the standard apical four-chamber view). Three data pre-processing strategies were explored: 2D, 2.5D and 3D. Three different loss function strategies were investigated: classification of discrete integer angles, regression with mean absolute angle error loss, and regression with geodesic loss. We then integrated the model into a virtual reality application and aligned the re-oriented 3D echo images with a standard anatomical heart model. The deep learning strategy with the highest accuracy – 2.5D classification of discrete integer angles – achieved a mean absolute angle error on the test set of 9.0∘. This work demonstrates the potential of artificial intelligence to support visualisation and interaction in virtual reality.
Original language | English |
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Title of host publication | Medical Image Understanding and Analysis - 25th Annual Conference, MIUA 2021, Proceedings |
Editors | Bartłomiej W. Papież, Mohammad Yaqub, Jianbo Jiao, Ana I. Namburete, J. Alison Noble |
Publisher | Springer Science and Business Media Deutschland GmbH |
Pages | 177-188 |
Number of pages | 12 |
ISBN (Print) | 9783030804312 |
DOIs | |
Publication status | Published - 2021 |
Externally published | Yes |
Event | 25th Annual Conference on Medical Image Understanding and Analysis, MIUA 2021 - Virtual, Online Duration: 12 Jul 2021 → 14 Jul 2021 |
Publication series
Name | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
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Volume | 12722 LNCS |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Conference
Conference | 25th Annual Conference on Medical Image Understanding and Analysis, MIUA 2021 |
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City | Virtual, Online |
Period | 12/07/21 → 14/07/21 |
Bibliographical note
Publisher Copyright:© 2021, Springer Nature Switzerland AG.
Keywords
- 3D echocardiography
- Deep learning
- Virtual reality