Comparison Of CTA And DSA In Diagnosis And Treatment Of Intracranial Aneurysms

Objective: To assess the different value of computered tomographic angiography (CTA) and digital subtraction angiography (DSA) in the diagnosis and preoperative evaluation of intracranial aneurysms, to evaluate how much influence both of these methods exerted on clinical treatment of intracranial aneurysms, and make sure how to choose a suitable method to find intracranial aneurysms.Methods: Computered tomographic angiography (CTA) study and conventional digital subtract angiography (DSA) were performed on eleven patients who were suspected bearing intracranial aneurysms according to clinical manifestations such as headache, vomiting, neck stiffness and CT scan results after admission. Aneurysms were analyzed for size of their bodies, necks and their relationships with the patent arteries and the surrounding cranial bone structures. All the cases were confirmed by operation.Results: Out of the eleven cases, ten aneurysms were detected by CTA and confirmed by DSA and the following operation. One pseudo-negative aneurysm of CTA was determined by DSA and the following operation. CTA can depicture the three dimensional anatomy structures of the cerebral arteries and supply useful information for the diagnosis and treatment of intracranial aneurysms. The neck of aneurysms and relationships between the aneurysms and their patent arteries were clearly demonstrated. Out of the eleven positive cases, two was performed interventional embolization, other cases underwent clipping surgery. CTA was performed for one case that suffered from temporary hemi paralysis after clipping of the anterior communicating artery aneurysm,...