MR imaging and MR angiography in preoperative evaluation of intracranial meningiomas |
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Authors: | A. Goldmann U. Kunz C. Bader U. Leibing J. M. Friedrich P. Oldenkott |
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Affiliation: | (1) Department of Diagnostic Radiology, University of Ulm, Steinhövelstr. 9, D-89075 Ulm, Germany;(2) Department of Neurosurgery, Military Hospital, Academic Hospital of the University, Oberer Eselsberg 40, D-89070 Ulm, Germany |
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Abstract: | A group of 41 patients with intracranial meningiomas were examined by MR imaging (MRI) and MR angiography (MRA) to assess the. clinical value of MRA in the preoperative evaluation of these patients. The results of MRA were compared with the results of intraarterial cerebral catheter X-ray angiography (XRA; n = 19) and with the operative findings (n = 41 ): Our results showed a good correlation between MRA and XRA/surgery in demonstrating the relationship between the tumor and adjacent venous and arterial structures. Use of MRA was also helpful in demonstrating the degree of intrinsic tumor vascularity. It also supplied important information for operative planning Adjunct XRA was mandatory if detailed information about tumor-feeding vessels was requested by the neurosurgeon, especially in highly vascularized angiomatous meningiomas and in meningiomas suspected of tumor feeding by vessels of the internal carotid artery.Correspondence to: A. Goldmann |
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Keywords: | MRI MRA Meningiomas Arterial displacement Tumor-feeding vessels |
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