Magnetic Resonance Angiography in Diagnosis of Intracranial Aneurysms

Magnetic resonance and magnetic resonance angiography is a non-invasive diagnostic method that is a feasible and reduces the possibility of risk catheterization angiography (IADSA). The patient is not exposed to radiation and iodine intravenous contrast media, which is especially dangerous in patients with renal failure and allergies to iodine.. In the period since 1998 until 2006 there were 102 patients with cerebral aneurysms were diagnosed, 60 (58.8%) female and 42 (41.2%) males, age from 12 to 76 years, average age was 49.41 years The largest number of patients, 83 patients (81.4%) with the diagnosis of aneurysms, had non traumatic intracranial bleeding either subarchnoidal bleeding or intracerebral hematoma. Sixteen patients (15.6%) had occasional headaches, 2 patients had brain tumors, and their aneurysms were diagnosed accidentally. All patients were reviewed at the CT scan, and then they made magnetic resonance with magnetic angiography. There were no aneurysms smaller than 3 mm. the size of 14 aneurysms was 3-5mm, 12 is a differentiated using MIP reconstruction and only 6 using 3D TOF tomograms, while the common processing of MIP and 3D TOF we differentiated 13 aneurysms, and one aneurysm of MCA that is 3mm of size. For evaluation of the presence of aneurysms and its localizations is of great importance evaluation of 3D TOF tomograms that together with MIP reconstruction gives a sensitivity of 99%. MR angiography demonstrated as inadequate for characterization of aneurysms’ morphology in comparison to DSA, and according to an MR angiography cannot be used in planning of the aneurysms embolisation treatment. In monitoring of patients after the endovascular treatment of aneurysms MRI with MR angiography is shown to be a method of choice.