Imperial College London
Dr Peter Gatehouse

DrPeterGatehouse

Faculty of Medicine, National Heart & Lung Institute

Honorary Clinical Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7351 8807p.gatehouse

 
 
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Location

 

MRISydney StreetRoyal Brompton Campus

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Summary

 

Publications

Citation

BibTex format

@article{Wu:2021:10.3390/diagnostics11020346,
author = {Wu, Y and Hatipoglu, S and Alonso-Álvarez, D and Gatehouse, P and Li, B and Gao, Y and Firmin, D and Keegan, J and Yang, G},
doi = {10.3390/diagnostics11020346},
journal = {Diagnostics},
title = {Fast and automated segmentation for the three-directional multi-slice cine myocardial velocity mapping},
url = {http://dx.doi.org/10.3390/diagnostics11020346},
volume = {11},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Three-directional cine multi-slice left ventricular myocardial velocity mapping (3Dir MVM) is a cardiac magnetic resonance (CMR) technique that allows the assessment of cardiac motion in three orthogonal directions. Accurate and reproducible delineation of the myocardium is crucial for accurate analysis of peak systolic and diastolic myocardial velocities. In addition to the conventionally available magnitude CMR data, 3Dir MVM also provides three orthogonal phase velocity mapping datasets, which are used to generate velocity maps. These velocity maps may also be used to facilitate and improve the myocardial delineation. Based on the success of deep learning in medical image processing, we propose a novel fast and automated framework that improves the standard U-Net-based methods on these CMR multi-channel data (magnitude and phase velocity mapping) by cross-channel fusion with an attention module and the shape information-based post-processing to achieve accurate delineation of both epicardial and endocardial contours. To evaluate the results, we employ the widely used Dice Scores and the quantification of myocardial longitudinal peak velocities. Our proposed network trained with multi-channel data shows superior performance compared to standard U-Net-based networks trained on single-channel data. The obtained results are promising and provide compelling evidence for the design and application of our multi-channel image analysis of the 3Dir MVM CMR data.
AU  - Wu,Y
AU  - Hatipoglu,S
AU  - Alonso-Álvarez,D
AU  - Gatehouse,P
AU  - Li,B
AU  - Gao,Y
AU  - Firmin,D
AU  - Keegan,J
AU  - Yang,G
DO  - 10.3390/diagnostics11020346
PY  - 2021///
SN  - 2075-4418
TI  - Fast and automated segmentation for the three-directional multi-slice cine myocardial velocity mapping
T2  - Diagnostics
UR  - http://dx.doi.org/10.3390/diagnostics11020346
UR  - http://hdl.handle.net/10044/1/88194
VL  - 11
ER  -
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