COMPARATIVE STUDY BETWEEN C.T. SCANNING, M.R.I AND ECHOGRAPHY IN DIAGNOSIS OF ORBITAL DISEASES

Abstract

Because of the orbit's small size, complex anatomy, and elaborate functions it is considered a diagnostic challenge to evaluate a patient with an obvious or suspected orbital process, and the clinician is often confronted with t11e decision to image the patient in order to reach the diagnosis Ultrasonography (US) is among the avarlable techniques in clinical practice besides Computerized Topography (CT) and Magnetic Resonance Imaging (IVIRI) which are used to provides a higl1 Resolution images of the orbit and visual pathway. Other innovative applications such as three- dimensional reconstructions of CT images and color-coding of Doppler Imaging in orbital ultrasound are becoming more widespread. The selection of imaging mod lity is guided by thclinical presentation and is affected by both the clinician knowledge and experience with orbital disease, and also, the familiarity with the available Imaging techniques. Despite the difficulties we encountered through out the study either in the form of the limited number of patients and the higl1 coast of CT and IVIRI in the IVienouflya University Hospital group of patients or the paper work needed from the insurance companies to cover the expenses of each investigative technique in the Craniofacial Institute group of patients, We were able to collect one hundred patients with orbital lesions