• J Neuroimaging · Jul 2001

    Comparative Study

    Helical high-resolution volume-rendered 3-dimensional computer tomography angiography in the detection of intracranial aneurysms.

    • T Seruga, G Bunc, and G E Klein.
    • Department of Radiology, Maribor Teaching Hospital, Ljubljanska ulica 5, 2000 Maribor, Slovenia. tomaz.seruga@sb-mb.si
    • J Neuroimaging. 2001 Jul 1; 11 (3): 280-6.

    Background And PurposeThis 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.MethodsBoth techniques were performed in 30 consecutive patients within 2 to 12 hours after their admission to the hospital.ResultsIn 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.ConclusionsCT 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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