BACKGROUND AND PURPOSE: Systematic assessment of brain and head and neck tumors with 4D-CE-MRA at 3T has not been investigated. The purpose of this study was to test the hypothesis that 4D-CE-MRA at 3T can replace DSA in the identification of feeding arteries and tumor stain to plan interventional procedures in hypervascular brain and head and neck tumors. MATERIALS AND METHODS: Fifteen consecutive patients with brain and head and neck tumors underwent 4D-CE-MRA at 3T and DSA. 4D-CE-MRA combined randomly segmented central k-space ordering, keyhole imaging, SENSE, and half-Fourier imaging. We obtained 30 dynamic scans every 1.9 seconds at an acquired spatial resolution of 0.9 × 0.9 × 1.5 mm; the matrix was 256 × 256. Two independent observers inspected the 4D-CE-MRA images for the main arterial feeders and tumor stain. Interobserver and intermodality agreement was assessed by κ statistics. RESULTS: For 4D-CE-MRA, the interobserver agreement was fair with respect to the main arterial feeders and very good for the degree of tumor stain (κ = 0.28 and 0.87, respectively). Intermodality agreement was moderate for the main arterial feeders (κ = 0.45) and good for the tumor stain (κ = 0.74). CONCLUSIONS: Although 4D-CE-MRA may be useful for evaluating tumor stain in hypervascular brain and head and neck tumors, it is not able to replace DSA in planning interventional procedures.
BACKGROUND AND PURPOSE: Systematic assessment of brain and head and neck tumors with 4D-CE-MRA at 3T has not been investigated. The purpose of this study was to test the hypothesis that 4D-CE-MRA at 3T can replace DSA in the identification of feeding arteries and tumor stain to plan interventional procedures in hypervascular brain and head and neck tumors. MATERIALS AND METHODS: Fifteen consecutive patients with brain and head and neck tumors underwent 4D-CE-MRA at 3T and DSA. 4D-CE-MRA combined randomly segmented central k-space ordering, keyhole imaging, SENSE, and half-Fourier imaging. We obtained 30 dynamic scans every 1.9 seconds at an acquired spatial resolution of 0.9 × 0.9 × 1.5 mm; the matrix was 256 × 256. Two independent observers inspected the 4D-CE-MRA images for the main arterial feeders and tumor stain. Interobserver and intermodality agreement was assessed by κ statistics. RESULTS: For 4D-CE-MRA, the interobserver agreement was fair with respect to the main arterial feeders and very good for the degree of tumor stain (κ = 0.28 and 0.87, respectively). Intermodality agreement was moderate for the main arterial feeders (κ = 0.45) and good for the tumor stain (κ = 0.74). CONCLUSIONS: Although 4D-CE-MRA may be useful for evaluating tumor stain in hypervascular brain and head and neck tumors, it is not able to replace DSA in planning interventional procedures.
Authors: Winfried A Willinek; Jürgen Gieseke; Rudolf Conrad; Holger Strunk; Romhild Hoogeveen; Marcus von Falkenhausen; Ewald Keller; Horst Urbach; Christiane K Kuhl; Hans H Schild Journal: Radiology Date: 2002-11 Impact factor: 11.105
Authors: J J van Vaals; M E Brummer; W T Dixon; H H Tuithof; H Engels; R C Nelson; B M Gerety; J L Chezmar; J A den Boer Journal: J Magn Reson Imaging Date: 1993 Jul-Aug Impact factor: 4.813
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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: Christian A Taschner; Jürgen Gieseke; Vianney Le Thuc; Henda Rachdi; Nicolas Reyns; Jean-Yves Gauvrit; Xavier Leclerc Journal: Radiology Date: 2008-01-14 Impact factor: 11.105