SciELO - Scientific Electronic Library Online

 
vol.47 issue1A new method for intraoperative localization of epilepsy focus by means of a gamma probeSonography of the iliotibial band: spectrum of findings author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Radiologia Brasileira

Print version ISSN 0100-3984On-line version ISSN 1678-7099

Abstract

BRASILEIRO JUNIOR, Vilson Lacerda et al. Reliability of digital panoramic radiography in the diagnosis of carotid artery calcifications. Radiol Bras [online]. 2014, vol.47, n.1, pp.28-32. ISSN 1678-7099.  http://dx.doi.org/10.1590/S0100-39842014000100011.

Objective

The present study evaluated the reliability of digital panoramic radiography in the diagnosis of carotid artery calcifications.

Materials and Methods

Thirty-five patients under high-risk for development of carotid artery calcifications who had digital panoramic radiography were referred to undergo ultrasonography. Thus, 70 arteries were assessed by both methods. The main parameters utilized to evaluate the panoramic radiography reliability in the diagnosis of carotid artery calcifications were accuracy, sensitivity, specificity and positive predictive value of this method as compared with ultrasonography. Additionally, the McNemar's test was utilized to verify whether there was a statistically significant difference between digital panoramic radiography and ultrasonography.

Results

Ultrasonography demonstrated carotid artery calcifications in 17 (48.57%) patients. Such individuals presented with a total of 29 (41.43%) carotid arteries affected by calcification. Radiography was accurate in 71.43% (n = 50) of cases evaluated. The degree of sensitivity of this method was 37.93%, specificity of 95.12% and positive predictive value of 84.61%. A statistically significant difference (p < 0.001) was observed between the methods evaluated in their capacity to diagnose carotid artery calcifications.

Conclusion

Digital panoramic radiography should not be indicated as a method of choice in the investigation of carotid artery calcifications.

Keywords : Carotid artery calcification; End-stage renal disease; Panoramic radiography; Ultrasonography.

        · abstract in Portuguese     · text in English | Portuguese     · English ( pdf ) | Portuguese ( pdf )