ROLE OF CT ANGIOGRAPHY IN EVALUATION OF INTRACRANIAL HEMORRHAGE

Abstract

Background : The development of CT angiography (CTA) in imaging the cerebral vessels has evolved rapidly. The recent introduction of multi-slice CT scanners enables isotropic imaging and has further shortened acquisition time. This enables evaluation of the major arteries prior to endovascular access and at the same time visualization of the circle of Willis. we evaluated the efficacy of CTA in detecting the cause of intracranial hemorrhage (ICH) and its ability to display the vascular anatomy in order to choose appropriate treatment.
Objective : The aim of the study is to assess the role of multi-detector computed tomography (MDCT) with multi-planar reformation (MPR) and three-dimensional (3D) reconstruction in evaluation of the underlying etiology of intracranial hemorrhage.To accurately delineate the lesion and the associated anomalies to improve clinical management and proper intervention.
Methods : This study was carried out at Radio diagnosis Department, Zagazig University Hospitals, The present study was carried on 30 patients of intra-cranial hemorrhage. Diagnostic work up was done including MD-CT & MD-CTA.
Results : The MD-CTA were interpreted for the presence, location, size, ratios of the aneurysm (dome to neck ratio (D/N)), by using volume-rendering and multi-planar reformat techniques of MDCT was done for all patients. MD-CTA was able to detect the aneurysms in 16 patients (88.8 %). With male predominance, the commonest site was in the MCA. Their sizes ranged from 2.9 mm to 11.6 mm.
Conclusion: Our results indicate that the non-invasive MD-CTA provide valuable information for the assessment of intracranial vascular lesions. However, MD-CTA has an advantage of rapid evaluation in patients with intra cerebral haemorrhage and includes the ability to depict bone landmarks and brain parenchymal changes adjacent to the vascular lesion.
Keywords: MultidetectorCT; Angiography; Digital subtraction; Aneurysm.