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Three‐dimensional MR reconstruction images of skull base tumors
Author(s) -
Vogl Thomas J.,
Assal Josef,
Bergman Clifford,
Grevers Gerd,
Wustrow Thomas,
Hamburger Christian,
McMahon Christine,
Lissner Josef
Publication year - 1993
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/jmri.1880030211
Subject(s) - skull , base (topology) , computer science , medicine , radiology , computer vision , anatomy , mathematics , mathematical analysis
Forty‐eight patients with skull base tumors were evaluated prospectively with T1‐weighted spin‐echo two‐dimensional (2D) magnetic resonance (MR) sequences, a three‐dimensional (3D) MR TurboFLASH (fast low‐angle shot) sequence, and a 3D reconstruction window technique. All patients underwent surgery with histopathologic correlation, and the three MR imaging techniques were compared to assess representation of tumor margins and the topographic relationship of tumor to surrounding tissue and adjacent vasculature. The best results were obtained with standard 2D spin‐echo sequences after administration of the paramagnetic contrast agent gadopentetate dimeglumine. The 2D MR sequences gave the highest contrast‐to‐noise ratios, with decreasing values for 3D sequences and 3D reconstructions, respectively. Nevertheless, 3D MR imaging, by virtue of its good representation of adjacent structures, aided surgeons in planning surgical intervention. This study presents the technical features of 3D imaging of the skull base, the choices involved in its implementation, and its potential clinical applications.