The diagnostic value of 64-slice multidetecter computed tomography angiography in acute aneurismal subarachnoid hemorrhage

Objective To investigate the clinical value of 64-slice multidetecter com-puted tomography angiography(MSCTA) in the diagnosis of aneurismal subarachnoid hemorrhage (SAH). Methods The data of MSCTA, DSA and operation in 42 patients with aneurismal subarachnoid hemorrhage were reviewed retrospectively. The MSCTA reconstructed images were processed into volume rendering(VR), maximal intensity projection(MIP), multiplanner reconstruction(MPR), and virtual endoscopy(VE). Results Fourty-four aneurysms were detected by MSCTA, 46 aneurysms were de-tected by DSA and operation. In comparion with DSA and operation, 44 aneurysms were accurately diagnosed and 2 were not detected,the sensitivity of MSCTA in the diagnosis of ruptured aneurysms was 95.7%. Conclusion MSCTA is a sensitive, rapid, and noninvasive method for detecting intracranial aneurysms.It may be the first choice for diagnosing intracranial aneurysms,espically in an emergency situation.