Texture Analysis of Sonographic Images
for Hashimoto's Lymphocytic Thyroiditis Recognition

Hashimoto's lymphocytic thyroiditis (HLT) is a chronic inflammation of the thyroid gland. The inflammation in the gland changes the structure of the thyroid tissue. These changes are diffuse, affecting the entire gland, and can be detected by sonographic imaging.

Typical images

healthy	Hashimoto's thyroiditis
Hashimoto's thyroiditis	Hashimoto's thyroiditis

Method

Best system of 4 texture sampling variables

Thyroiditis Recognition Results in Patients

• Resubstitution success rate 100%
• Leave-one-out success rate 92%
• False positives rate (healthy misclassified) 2.7%
• False negatives rate (disease not recognized) 5.4%

Misclassified patients

True class: HLT misclassified as healthy (false negatives)
True class: Healthy misclassified as HLT (false positive)

References

1. R. Sara, D. Smutek, P. Sucharda and S. Svacina. Systematic Construction of Texture Features for Hashimoto's Lymphocytic Thyroiditis Recognition from Sonographic Images. In Proceedings Artificial Intelligence in Medicine (AIME'01), Cascais, Portugal. Springer Verlag LNAI 2101 pp. 339-348, July 2001. [draft paper].
2. D. Smutek, T. Tjahjadi, R. Sara, M. Svec, P. Sucharda and S. Svacina. Image Texture Analysis of Sonograms in Chronic Inflammations of Thyroid Gland. Research Report CTU-CMP-2001-15, Center for Machine Perception, Faculty of Electrical Engineering, Czech Technical University, April 2001.