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Ultrasonographic texture characterization of salivary and neck masses using two-dimensional gray-scale clustering
1Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Kyushu University, Japan.
Objectives:
To evaluate the clinical usefulness of texture analysis in ultrasonography (US) of head and neck masses.
Methods:
Sixty-one cases with salivary or neck masses were examined by US with a linear 7.5MHz array. Images were digitized and quantitatively evaluated by two-dimensional gray-scale clustering using two texture indices, M and SD, as measures of coarseness and homogeneity respectively.
Results:
Coarseness of Warthin's tumors was significantly higher than that of the other salivary tumors. Malignant lymphomas had finer texture values than other lymph node lesions.
Conclusions:
Quantitative texture analysis appears to be a useful complement in diagnostic US.