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Usefulness of multislice computerized tomographic angiography in the postoperative evaluation of patients with clipped aneurysms.

Abstract : BACKGROUND: The aim of our study was to evaluate the diagnostic efficacy of multislice computed tomographic angiography (MSCTA) regarding exclusion quality after aneurysm clipping. METHODS: Sixty patients (74 aneurysms) underwent microsurgical exclusion using titanium clips. The presence of aneurysm remnants on MSCTA was compared by a neuroradiologist to 2D digital subtraction angiography (DSA), which was considered as a reference examination. The contribution of 3D DSA was assessed in a subpopulation of 29 patients (35 aneurysms). RESULTS: With 2D DSA, six aneurysm remnants (8%) were diagnosed, and only five (7%) by MSCTA. The specificity and sensitivity were 98.5 and 83%, respectively. MSCTA failed to demonstrate one large remnant (>2 mm) because of clip artifacts (six clips). With 3D DSA six supplementary remnants were diagnosed. Two were large remnants blinded by vessel overlaps and clip artifacts. Four were small "dog-eared" remnants (
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Submitted on : Tuesday, April 13, 2010 - 11:01:13 AM
Last modification on : Wednesday, April 1, 2020 - 11:14:05 AM

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Emmanuel Gerardin, Eléonore Tollard, Stéphane Derrey, Olivier Langlois, Jean-Nicolas Dacher, et al.. Usefulness of multislice computerized tomographic angiography in the postoperative evaluation of patients with clipped aneurysms.. Acta Neurochirurgica / Acta Neurochir (Wien); Acta Neurochir (Wein), 2009, epub ahead of print. ⟨10.1007/s00701-009-0465-4⟩. ⟨inserm-00472754⟩

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