Abstract

Background: Inflammatory myopathies represent a special group of pathology. Establishing the correct diagnosis in the early phase and a better follow-up are the main objective for improving the life quality of these patients. Objective: The aim of this research was to assess the usefulness of sonoelastography in diagnosis of inflammatory myopathies. Material and Method: A prospective longitudinal study with a control group was carried out in the Radio-Imaging Department, Cluj-Napoca District University Hospital, Romania, from May 2007 to July 2010. Measurements: Image Processing 2.8 software was used to analyze the elastographic images in correlation with clinical and biochemical data was used. Results: Analysis of Receiver Operating Characteristic curves statistics for elastography parameters showed significant values for the following parameters: average green color, average blue color, average intensity of color, dispersion of red, dispersion of green, and dispersion of hue. Conclusions: Our study highlighted the utility of some elastography parameters in the diagnosis of inflammatory myopathies; the parameter proved to be statistically different in case group compared to control. Anyway, standardization of sonoelastography and larger studies are required to ensure accurate diagnosis, reproductibility and reliability.

Keywords

Receiver Operating Characteristic (ROC) curve, Cutoff value, Dedicated software, Sonoelastography, Inflammatory Myopathies.