PURPOSE: To evaluate the use of magnetic resonance (MR) angiography in the diagnosis of glomus tumors of the skull base. MATERIALS AND METHODS: In 40 patients with pulsatile tinnitus, spin-echo (SE) images, single sections, and maximum intensity projections from gradient-echo sequences, including arterial MR angiography and MR venography, were evaluated for tumor detection. Interpretations by two independent observers were correlated with findings from histologic examination, digital subtraction angiography, computed tomography, and clinical follow-up. RESULTS: Glomus tumors were detected near the tympanic plexus (n = 8) and close to the superior (n = 8) and inferior (n = 1) ganglia of the vagus nerve. Sixteen of 18 proved tumors were detected with SE images alone. Although four high-lying jugular bulbs were misinterpreted as tumor due to similar signal intensity, combined evaluation allowed differentiation between tumor and sinusal blood flow in all cases. CONCLUSION: The authors recommend combined SE imaging and MR angiography for ruling out tumor in patients with pulsatile tinnitus.
PURPOSE: To evaluate the use of magnetic resonance (MR) angiography in the diagnosis of glomus tumors of the skull base. MATERIALS AND METHODS: In 40 patients with pulsatile tinnitus, spin-echo (SE) images, single sections, and maximum intensity projections from gradient-echo sequences, including arterial MR angiography and MR venography, were evaluated for tumor detection. Interpretations by two independent observers were correlated with findings from histologic examination, digital subtraction angiography, computed tomography, and clinical follow-up. RESULTS:Glomus tumors were detected near the tympanic plexus (n = 8) and close to the superior (n = 8) and inferior (n = 1) ganglia of the vagus nerve. Sixteen of 18 proved tumors were detected with SE images alone. Although four high-lying jugular bulbs were misinterpreted as tumor due to similar signal intensity, combined evaluation allowed differentiation between tumor and sinusal blood flow in all cases. CONCLUSION: The authors recommend combined SE imaging and MR angiography for ruling out tumor in patients with pulsatile tinnitus.
Authors: S Nishimura; T Hirai; Y Shigematsu; M Kitajima; M Morioka; Y Kai; R Minoda; H Uetani; R Murakami; Y Yamashita Journal: AJNR Am J Neuroradiol Date: 2011-11-24 Impact factor: 3.825
Authors: R van den Berg; M N Wasser; A P van Gils; A G van der Mey; J Hermans; M A van Buchem Journal: AJNR Am J Neuroradiol Date: 2000-01 Impact factor: 3.825
Authors: René van den Berg; Berit M Verbist; Bart J A Mertens; Andel G L van der Mey; Mark A van Buchem Journal: AJNR Am J Neuroradiol Date: 2004-05 Impact factor: 3.825
Authors: F Neves; L Huwart; G Jourdan; D Reizine; P Herman; E Vicaut; J P Guichard Journal: AJNR Am J Neuroradiol Date: 2008-03-13 Impact factor: 3.825
Authors: Anna Prajsnar; Naci Balak; Gerhard F Walter; Alexandru C Stan; Wolfgang Deinsberger; Leyla Tapul; Cicek Bayindir Journal: Surg Neurol Int Date: 2011-04-19