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Magnetic resonance imaging of paranasal sinus tumors for craniofacial resection
Author(s) -
Lund Valerie J.,
Howard David J.,
Lloyd Glyn A. S.,
Cheesman Anthony D.
Publication year - 1989
Publication title -
head and neck
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.012
H-Index - 127
eISSN - 1097-0347
pISSN - 1043-3074
DOI - 10.1002/hed.2880110316
Subject(s) - magnetic resonance imaging , medicine , craniofacial , paranasal sinuses , radiology , gadolinium , nuclear medicine , materials science , psychiatry , metallurgy
Computerized tomography (CT) has been shown to be 78% accurate with respect to anatomic extent of tumor when correlated with operative findings and histology in patients undergoing craniofacial resection. To determine whether preoperative evaluation could be improved by the combination of CT and magnetic resonance imaging (MRI), 26 patients with tumor of the paranasal sinuses had undergone MRI before surgery in addition to CT. Ten patients also received Gadolinium‐DTPA as a contrast‐enhancement agent during MRI. The radical approach offered by craniofacial resection allows accurate evaluation of imaging techniques and when these are compared with histologic findings, a 94% correlation is found. The use of Gadolinium further improves the accuracy of tumor delineation to 98%. Despite the intrinsic disadvantage of absent bone detail, MRI demonstrates the extent of tumor better than CT and can distinguish it from inflammed mucosa, retained secretions, and normal mucosa provided the correct sequences are used.