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AJNR - American Journal of Neuroradiology

Published ahead of print on September 26, 2007
doi: 10.3174/ajnr.A0699

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Sixty-Four-Row Multisection CT Angiography for Detection and Evaluation of Ruptured Intracranial Aneurysms: Interobserver and Intertechnique Reproducibility

B. Lubicz^a, M. Levivier^b, O. François^a, P. Thoma^a, N. Sadeghi^a, L. Collignon^a and D. Balériaux^a

^a Departments of Neuroradiology, Erasme University Hospital, Brussels, Belgium
^b Departments of Neurosurgery, Erasme University Hospital, Brussels, Belgium

View larger version (51K): [in this window] [in a new window]   Fig 1. Images obtained in a 49-year-old woman with SAH. A, 3D volume-rendered CTA image in lateral view shows a 1.5-mm ruptured aneurysm (arrow) at the junction between the A2 segment of the right anterior cerebral artery and a second anterior communicating artery that is fenestrated (line). B, Lateral projection from presurgical treatment 3D DSA shows the same aneurysm as in A.

View larger version (45K): [in this window] [in a new window]   Fig 2. Images obtained in a 48-year-old man with SAH. A, 3D volume-rendered CTA image in frontal view shows a left-ruptured MCA bifurcation aneurysm. The relationship between the aneurysm neck and the MCA bifurcation branches is clearly seen on CTA images. B, Frontal projection from pre-embolization DSA, performed with contrast material injection into the left ICA, shows the same aneurysm as in A.

View larger version (60K): [in this window] [in a new window]   Fig 3. Images obtained in a 64-year-old woman with SAH. A, 3D volume-rendered CTA image in frontal view shows 2 aneurysms: a large left-ruptured ICA bifurcation aneurysm with the A1 segment from the anterior cerebral artery arising from the sac (arrow) and a small left unruptured posterior communicating artery aneurysm (line). B, Frontal projection from pre-embolization DSA shows the same aneurysms as in A.

View larger version (79K): [in this window] [in a new window]   Fig 4. Images obtained in a 44-year-old woman with SAH. A, 3D volume-rendered CTA image in oblique view shows a small anterior communicating aneurysm. Adjacent A2 segment from both anterior cerebral arteries "seem" to be incorporated within the aneurysm wall (arrow). B, Oblique view from pre-embolization DSA shows that both A2 segments are clearly separated from the aneurysm neck and sac.