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

Radim Sara, Martin Svec
Center for Machine Perception
Faculty of Electrical Engineering
Czech Technical University Prague

Daniel Smutek, Petr Sucharda, Stepan Svacina
3 rd Department of Medicine
1 st Medical Faculty
Charles University Prague

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

healthyHashimoto's thyroiditis
Hashimoto's thyroiditisHashimoto's thyroiditis
You see longitudinal cross-sections of the gland. Skin is the topmost white layer in the images. Dotted red line showns a rough delineation of the thyroid gland. Note the large variability of images in Hashimoto's thyroiditis patients.


Best system of 4 texture sampling variables

Thyroiditis Recognition Results in Patients

input data
patientstotal images
HLT 20 401
Healthy 17 340

Misclassified patients

True class: HLT misclassified as healthy (false negatives)
True class: Healthy misclassified as HLT (false positive)
Images shown are 249x164 pixels.


  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.

Radim Sara
Last modified: Thu Aug 30 10:58:01 CEST 2001