5.1 Patients and Methods5.2 Disease Activity Assessment5.3 Temperature Indices5.3.1 Heat Distribution Index5.4 Thermal Image Acquisition Protocol5.5 Thermal Image Segmentation5.5.1 Threshold Method5.5.2 Edge Detection5.5.3 k-Means Clustering5.5.4 Watershed Segmentation5.6 Statistical Feature Extraction and Classification5.6.1 Oriented Fast and Rotated BRIEF5.6.2 Support Vector Machine5.6.3 k-Nearest Neighbor5.6.4 Linear Discriminant Analysis (LDA)5.6.5 Random Forest Classifiers5.6.6 Naïve Bayes Classifier5.7 Findings and Conclusion5.8 Case Study5.8.1 Color Doppler Ultrasonographic Evaluation5.8.2 Case Reports5.8.3 Results of CDUS Examination5.8.4 Comparison of Clinical, Thermographic, and CDUS Findings5.8.5 Discussion5.8.6 Limitations and RecommendationsReferences