Abstract
As a result of recent advances in magnetic resonance imaging (MRI) technology, direct imaging of the intraparotid facial nerve has become possible. The usefulness of MRI is well known in the diagnosis of parotid tumors. Using a 0.5 T midfield MR unit, this study aimed to visualize the intraparotid facial nerve in 5 normal volunteers and 14 patients with parotid tumors (on 24 normal sides and 14 affected sides). Under appropriate conditions for MRI, the facial nerve was detectable on 9 out of 10 affected sides and 17 out of 20 normal sides. The running course of the facial nerve was consistent with MRI findings in five patients who underwent surgery. The imaging conditions suitable for visualizing the intraparotid facial nerve are reported and the usefulness of MRI in the diagnosis of parotid tumors is discussed.
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