Texture Analysis of Supraspinatus Ultrasound Image for Computer Aided Diagnostic System.
10.4258/hir.2016.22.4.299
- Author:
Byung Eun PARK
1
;
Won Seuk JANG
;
Sun Kook YOO
Author Information
1. Grauduate School of Biomedical Engineering, Yonsei University, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Rotator Cuff;
Ultrasonography;
Support Vector Machine;
Computer-Assisted Image Analysis;
Statistical Data Analyses
- MeSH:
Classification;
Data Interpretation, Statistical;
Entropy;
Image Processing, Computer-Assisted;
Rotator Cuff;
Sensitivity and Specificity;
Subject Headings;
Support Vector Machine;
Tears;
Tendons;
Ultrasonography*
- From:Healthcare Informatics Research
2016;22(4):299-304
- CountryRepublic of Korea
- Language:English
-
Abstract:
OBJECTIVES: In this paper, we proposed an algorithm for recognizing a rotator cuff supraspinatus tendon tear using a texture analysis based on a histogram, gray level co-occurrence matrix (GLCM), and gray level run length matrix (GLRLM). METHODS: First, we applied a total of 57 features (5 first order descriptors, 40 GLCM features, and 12 GLRLM features) to each rotator cuff region of interest. Our results show that first order statistics (mean, skewness, entropy, energy, smoothness), GLCM (correlation, contrast, energy, entropy, difference entropy, homogeneity, maximum probability, sum average, sum entropy), and GLRLM features are helpful to distinguish a normal supraspinatus tendon and an abnormal supraspinatus tendon. The statistical significance of these features is verified using a t-test. The support vector machine classification showed accuracy using feature combinations. Support Vector Machine offers good performance with a small amount of training data. Sensitivity, specificity, and accuracy are used to evaluate performance of a classification test. RESULTS: From the results, first order statics features and GLCM and GLRLM features afford 95%, 85%, and 100% accuracy, respectively. First order statistics and GLCM and GLRLM features in combination provided 100% accuracy. Combinations that include GLRLM features had high accuracy. GLRLM features were confirmed as highly accurate features for classified normal and abnormal. CONCLUSIONS: This algorithm will be helpful to diagnose supraspinatus tendon tear on ultrasound images.
