». Dans-la-situation-d-'un-angioscanner-«-réussi, le sang des espaces sous arachnoïdiens, ou l'hématome s

S. Tel-est-le-cas, les critères de qualité de l'examen doivent être ré-évalués, et une cause sous jacente doit être recherchée

B. 1. Van-gijn, J. , and G. J. , Subarachnoid haemorrhoge: diagnosis, causes and management, Brain, pp.249-78, 1242.

D. O. Wiebers, Unruptured intracranial aneurysms: natural history, clinical outcome, and risks of surgical and endovascular treatment, The Lancet, vol.362, issue.9378, pp.362-103, 2003.
DOI : 10.1016/S0140-6736(03)13860-3

M. Farres, Spontaneous Subarachnoid Hemorrhage with Negative Angiography, Journal of Computer Assisted Tomography, vol.16, issue.4, pp.534-541, 1992.
DOI : 10.1097/00004728-199207000-00006

H. J. Cloft, G. J. Joseph, and H. Dion, Risk of Cerebral Angiography in Patients With Subarachnoid Hemorrhage, Cerebral Aneurysm, and Arteriovenous Malformation : A Meta-Analysis, Stroke, vol.30, issue.2, pp.317-337, 1999.
DOI : 10.1161/01.STR.30.2.317

A. Kershenovich, Z. H. Rappaport, and S. Maimon, Brain Computed Tomography Angiographic Scans as the Sole Diagnostic Examination for Excluding Aneurysms in Patients with Perimesencephalic Subarachnoid Hemorrhage, Neurosurgery, vol.30, issue.4, pp.798-801, 2006.
DOI : 10.1016/0090-3019(93)90014-R

G. B. Bradac, False-negative angiograms in subarachnoid haemorrhage due to intracranial aneurysms, Neuroradiology, vol.39, issue.11, pp.772-778, 1997.
DOI : 10.1007/s002340050503

G. Audibert, H??morragie sous-arachno??dienne: ??pid??miologie, pr??disposition, pr??sentation clinique, Annales Fran??aises d'Anesth??sie et de R??animation, vol.26, issue.11, pp.943-950, 1995.
DOI : 10.1016/j.annfar.2007.09.006

A. Hijdra, Prediction of delayed cerebral ischemia, rebleeding, and outcome after aneurysmal subarachnoid hemorrhage, Stroke, vol.19, issue.10, pp.1250-1256, 1988.
DOI : 10.1161/01.STR.19.10.1250

J. W. Hop, Case-Fatality Rates and Functional Outcome After Subarachnoid Hemorrhage : A Systematic Review, Stroke, vol.28, issue.3, pp.660-664, 1997.
DOI : 10.1161/01.STR.28.3.660

M. Mohamed, Fluid-attenuated inversion recovery MR imaging and subarachnoid hemorrhage: not a panacea, AJNR Am J Neuroradiol, vol.25, issue.4, pp.545-50, 2004.

A. J. Goddard, G. Tan, and J. Becker, Computed tomography angiography for the detection and characterization of intra-cranial aneurysms: Current status, Clinical Radiology, vol.60, issue.12, pp.60-1221, 2005.
DOI : 10.1016/j.crad.2005.06.007

R. Willinsky, Neurologic Complications of Cerebral Angiography: Prospective Analysis of 2,899 Procedures and Review of the Literature, Radiology, vol.227, issue.2, pp.522-530, 2003.
DOI : 10.1148/radiol.2272012071

J. T. Fifi, Complications of Modern Diagnostic Cerebral Angiography in an Academic Medical Center, Journal of Vascular and Interventional Radiology, vol.20, issue.4, pp.442-449, 2009.
DOI : 10.1016/j.jvir.2009.01.012

A. J. Molyneux, International subarachnoid aneurysm trial (lSA Tl of neurosurgical clipping versus endovascular cailing in 2143 patients with ruptured intracranial aneurysms: a randomised comparison of effects on survival, dependency, seizures, rebleeding, subgroups, and aneurysm occlusion, Lancet, issue.9488, pp.366-809, 2005.

K. Papke, Intracranial Aneurysms: Role of Multidetector CT Angiography in Diagnosis and Endovascular Therapy Planning, Radiology, vol.244, issue.2, pp.532-572, 2007.
DOI : 10.1148/radiol.2442060394

B. F. Tomandl, CT angiogrophy of intracronial aneurysms: a focus on postprocessing. Radiographies, pp.637-55, 2004.

K. Papke and F. Brassel, Modern cross-sectional imaging in the diagnosis and follow-up of intracranial aneurysms, European Radiology, vol.24, issue.9, pp.2051-66, 2006.
DOI : 10.2214/ajr.179.5.1791319

A. Mallouhi, Detection and Characterization of Intracranial Aneurysms with MR Angiography: Comparison of Volume-Rendering and Maximum-Intensity-Projection Algorithms, American Journal of Roentgenology, vol.180, issue.1, pp.55-64, 2003.
DOI : 10.2214/ajr.180.1.1800055

P. M. White, J. M. Wardlaw, and V. Easton, Can Noninvasive Imaging Accurately Depict Intracranial Aneurysms? A Systematic Review, Radiology, vol.217, issue.2, pp.361-70, 2000.
DOI : 10.1148/radiology.217.2.r00nv06361

B. K. Velthuis, Subarachnoid hemorrhage: aneurysm detection and preoperative evaluation with CT angiography., Radiology, vol.208, issue.2, pp.423-453, 1998.
DOI : 10.1148/radiology.208.2.9680571

M. V. Jayaraman, Detection of Intracranial Aneurysms: Multi???Detector Row CT Angiography Compared with DSA, Radiology, vol.230, issue.2, pp.510-518, 2004.
DOI : 10.1148/radiol.2302021465

B. L. Hoh, RESULTS OF A PROSPECTIVE PROTOCOL OF COMPUTED TOMOGRAPHIC ANGIOGRAPHY IN PLACE OF CATHETER ANGIOGRAPHY AS THE ONLY DIAGNOSTIC AND PRETREATMENT PLANNING STUDY FOR CEREBRAL ANEURYSMS BY A COMBINED NEUROVASCULAR TEAM, Neurosurgery, vol.41, issue.6, pp.1329-1369, 2004.
DOI : 10.1097/00006123-199707000-00026

Q. Li, Evaluation of 64-Section CT Angiography for Detection and Treatment Planning of Intracranial Aneurysms by Using DSA and Surgical Findings, Radiology, vol.252, issue.3, pp.808-823, 2009.
DOI : 10.1148/radiol.2523081911

R. Agid, Acute subarochnoid hemorrhage: using 64-slice multidetector CT angiography to "triage" patients' treatment, Neuroradiology, issue.11, pp.48-787, 2006.

B. Lubicz, Sixty-four-row multisection CT angiogrophy for detection and evaluation of ruptured intracranial aneurysms: interabserver and intertechnique reproducibility, AJNR Am J Neuroradiol, issue.10, pp.28-1949, 2007.

F. Pozzi-mucelli, Detection of intracranial aneurysms with 64 channel multidetector row computed tomography: Comparison with digital subtraction angiography, European Journal of Radiology, vol.64, issue.1, pp.15-26, 2007.
DOI : 10.1016/j.ejrad.2007.02.018

A. M. Mckinney, Detection of Aneurysms by 64-Section Multidetector CT Angiography in Patients Acutely Suspected of Having an Intracranial Aneurysm and Comparison with Digital Subtraction and 3D Rotational Angiography, American Journal of Neuroradiology, vol.105, issue.3, pp.594-602, 2008.
DOI : 10.3171/jns.2006.105.3.400

D. Y. Yoon, Detection and charocterization of intracronial aneurysms with 16- channel multidetector row CT angiogrophy: a prospective comparison of volumerendered images and digital subtroction angiogrophy, AJNR Am J Neuroradiol, vol.28, issue.1, pp.60-67, 2007.

G. Tipper, Detection and evaluation of intracranial aneurysms with 16-row multislice CT angiography, Clinical Radiology, vol.60, issue.5, pp.565-72, 2005.
DOI : 10.1016/j.crad.2004.09.012

E. T. Chappell, F. C. Moure, M. C. Good, and N. , Comparison of Computed Tomographic Angiography with Digital Subtraction Angiography in the Diagnosis of Cerebral Aneurysms: A Meta-analysis, Neurosurgery, vol.41, issue.3, pp.624-655, 2001.
DOI : 10.1097/00006123-199707000-00026

M. Wintermark, Multislice computerized tomography angiography in the evaluation of intracranial aneurysms: a camparison with intraarterial digital subtraction angiography Detection of intraeranial aneurysms with multislice CT: comparison with canventional angiography, J Neurosurg Neuroradiology, vol.98, issue.46, pp.46-427, 2003.

H. E. Westerlaan, Multislice CT angiography in the selection of patients with ruptured intracranial aneurysms suitable for c1ipping or coiling, Neuroradiology, issue.12, pp.49-997, 2007.

R. Anxionnat, Intracranial Aneurysms: Clinical Value of 3D Digital Subtraction Angiography in the Therapeutic Decision and Endovascular Treatment, Radiology, vol.218, issue.3, pp.799-808, 2001.
DOI : 10.1148/radiology.218.3.r01mr09799

URL : https://hal.archives-ouvertes.fr/inria-00100629

K. T. Bae, Effect of Patient Weight and Scanning Duration on Contrast Enhancement during Pulmonary Multidetector CT Angiography, Radiology, vol.242, issue.2, pp.582-591, 2007.
DOI : 10.1148/radiol.2422052132