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Complementary use of computed tomography and magnetic resonance imaging in assessing skull base lesions
Author(s) -
Kraus Dennis H.,
Lanzieri Charles E.,
Wanamaker John R.,
Little John R.,
Lavertu Pierre
Publication year - 1992
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1288/00005537-199206000-00006
Subject(s) - magnetic resonance imaging , skull , cribriform plate , medicine , ethmoid bone , orbit (dynamics) , paranasal sinuses , radiology , tomography , sinus (botany) , cavernous sinus , anatomy , nasal cavity , botany , biology , genus , engineering , aerospace engineering
Twenty‐six patients underwent computed tomography (CT) and magnetic resonance imaging (MRI) of skull base lesions at the Cleveland Clinic Foundation. CT provided improved bone detail, documenting invasion of the lamina papyracea, orbital floor, fovea ethmoidalis, cribriform plate, pterygoid plates, hard palate, and skull base. MRI defined invasion of the orbit, dura, brain, and cavernous sinus. Improved soft‐tissue‐tumor interface was evident on MRI. MRI was superior to CT in determining carotid artery involvement. MRI distinguished between tumor and retained secretions in the paranasal sinuses. Combining radiographic tumor staging reliably predicted surgical findings; however, MRI consistently yielded sufficient diagnostic information and the additional expense of performing two imaging procedures may not be justified.