B-SCAN ULTRASONOGRAPHY IN GRAVES ORBITOPATHY

Diagnosing and monitoring of Graves' Orbitopathy (GO) can be supported by use of Ultrasonography (USG) and Computerized Tomography (CT); the y provide supplementary information. In this retrospective study we de scribe 107 clinical GO patients evaluated by B-scan USG and 27 clinica l GO patients evaluated by CT scan. Analysis of 236 B-scan USG include d measurements of medial, inferior and lateral rectus muscles. The pre sence of muscle enlargement and increased orbital fat were noted by th e radiologist on 27 CT scans. Sensitivity of both B-scan USG and CT sc an were calculated. We suggest that B-scan USG has a high sensitivity, which is equal or better than CT scan sensitivity in diagnosing GO. F urthermore USG A and B scan combination is an effective, accurate tool in diagnosing GO, and optic neuropathy, but it also provides essentia l information about the GO disease activity.