In our research, we compared enhanced and non-enhanced 3D-SPACE-STIR sequence in displaying the extracranial segments of the hypoglossal nerve. The SIR and CR of the nerve were higher on enhanced 3D-SPACE-STIR MR imaging than non-enhanced imaging (3.09±0.53 vs. 2.60±0.78 and 0.45±0.07 vs. 0.43±0.10, respectively, p＜0.05). Enhanced 3D-SPACE-STIR sequence demostrates better background suppression than non-enhanced. The extracranial segments of the hypoglossal nerve (extracranial-carotid space and extracranial-anterior segments) can be traced continuously on non-enhanced 3D-SPACE-STIR sequence.
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