Volume 59, Issue 3 pp. 380-386
Basic Science Research Article

Texture as an imaging biomarker for disease severity in golden retriever muscular dystrophy

Aydin Eresen PhD

Aydin Eresen PhD

Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas, USA

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Lejla Alic PhD

Lejla Alic PhD

Department of Electrical and Computer Engineering, Texas A&M University at Qatar, Doha, Qatar

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Sharla M. Birch DVM, PhD

Sharla M. Birch DVM, PhD

College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA

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Wade Friedeck MS

Wade Friedeck MS

College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA

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John F. Griffin IV DVM, PhD

John F. Griffin IV DVM, PhD

College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA

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Joe N. Kornegay DVM, PhD

Joe N. Kornegay DVM, PhD

College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA

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Jim X. JI PhD

Corresponding Author

Jim X. JI PhD

Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas, USA

Department of Electrical and Computer Engineering, Texas A&M University at Qatar, Doha, Qatar

Correspondence to: J. X. Ji; e-mail: [email protected]Search for more papers by this author
First published: 21 November 2018
Citations: 9
Funding: We acknowledge partial funding support by the National Science Foundation under award number 1606136, and Qatar National Research Fund under award numbers NPRP6-241-2-102, NPRP8-1606-3-322, and NPRP8-293-2-124.
Conflicts of Interest: J.N.K. is a paid consultant for Solid Biosciences.

ABSTRACT

Introduction: Golden retriever muscular dystrophy (GRMD), an X-linked recessive disorder, causes similar phenotypic features to Duchenne muscular dystrophy (DMD). There is currently a need for a quantitative and reproducible monitoring of disease progression for GRMD and DMD. Methods: To assess severity in the GRMD, we analyzed texture features extracted from multi-parametric MRI (T1w, T2w, T1m, T2m, and Dixon images) using 5 feature extraction methods and classified using support vector machines. Results: A single feature from qualitative images can provide 89% maximal accuracy. Furthermore, 2 features from T1w, T2m, or Dixon images provided highest accuracy. When considering a tradeoff between scan-time and computational complexity, T2m images provided good accuracy at a lower acquisition and processing time and effort. Conclusions: The combination of MRI texture features improved the classification accuracy for assessment of disease progression in GRMD with evaluation of the heterogenous nature of skeletal muscles as reflection of the histopathological changes. Muscle Nerve 59:380–386, 2019

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