Imperial College London
Alternate

ProfessorRaadMohiaddin

Faculty of Medicine, National Heart & Lung Institute

Professor Cardiovascular Imaging
 
 
 
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Contact

 

r.mohiaddin

 
 
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Location

 

3012Cardiovascular MR UnitRoyal Brompton Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Wu:2018:10.1007/978-3-030-00937-3_69,
author = {Wu, F and Li, L and Yang, G and Wong, T and Mohiaddin, R and Firmin, D and Keegan, J and Xu, L and Zhuang, X},
doi = {10.1007/978-3-030-00937-3_69},
pages = {604--612},
title = {Atrial Fibrosis Quantification Based on Maximum Likelihood Estimator of Multivariate Images},
url = {http://dx.doi.org/10.1007/978-3-030-00937-3_69},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - © 2018, Springer Nature Switzerland AG. We present a fully-automated segmentation and quantification of the left atrial (LA) fibrosis and scars combining two cardiac MRIs, one is the target late gadolinium-enhanced (LGE) image, and the other is an anatomical MRI from the same acquisition session. We formulate the joint distribution of images using a multivariate mixture model (MvMM), and employ the maximum likelihood estimator (MLE) for texture classification of the images simultaneously. The MvMM can also embed transformations assigned to the images to correct the misregistration. The iterated conditional mode algorithm is adopted for optimization. This method first extracts the anatomical shape of the LA, and then estimates a prior probability map. It projects the resulting segmentation onto the LA surface, for quantification and analysis of scarring. We applied the proposed method to 36 clinical data sets and obtained promising results (Accuracy: 0.809±150, Dice: 0.556±187). We compared the method with the conventional algorithms and showed an evidently and statistically better performance (p < 0.03).
AU  - Wu,F
AU  - Li,L
AU  - Yang,G
AU  - Wong,T
AU  - Mohiaddin,R
AU  - Firmin,D
AU  - Keegan,J
AU  - Xu,L
AU  - Zhuang,X
DO  - 10.1007/978-3-030-00937-3_69
EP  - 612
PY  - 2018///
SN  - 0302-9743
SP  - 604
TI  - Atrial Fibrosis Quantification Based on Maximum Likelihood Estimator of Multivariate Images
UR  - http://dx.doi.org/10.1007/978-3-030-00937-3_69
ER  -
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