Seruga T, Bunc G, Klein G E
Department of Radiology, Maribor Teaching Hospital, Ljubljanska ulica 5, 2000 Maribor, Slovenia.
J Neuroimaging. 2001 Jul;11(3):280-6. doi: 10.1111/j.1552-6569.2001.tb00047.x.
This study was carried out to determine whether high-resolution 3-dimensional prospective-volume-rendered computed tomographic (CT) angiography can replace conventional intra-arterial digital subtractional angiography in the diagnostic evaluation of patients with an acute subarachnoid hemorrhage (SAH) due to ruptured intracranial aneurysm.
Both techniques were performed in 30 consecutive patients within 2 to 12 hours after their admission to the hospital.
In this group of 30 patients, CT angiography with 3-dimensional volume-rendered reconstruction detected 31 aneurysms in 25 patients. Two aneurysms were missed on CT angiography. Conventional angiography detected 33 aneurysms in 27 patients. The authors considered angiograms in 3 patients presenting with SAH as normal. In all cases where an aneurysm was detected on CT angiography, the finding was confirmed by conventional angiography.
CT angiography with 3-dimensional post-processing is a sensitive, noninvasive method that provides a 3-dimensional view of intracranial vessels and the aneurysm. It is also very useful in planning either surgical or endovascular treatment.
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