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Fig 1. The degree of contrast enhancement was calculated by using the following formula: Degree of contrast enhancement (%) = [(SIPostcontrast – SIPrecontrast) / SIPrecontrast] x 100. Comparison of the degree of contrast enhancement measured within the tumor (range, 39%–119%) and normal tissue (range, 2%–46%) on T1-weighted MR images (T1WIs) in 64 patients with laryngeal carcinoma.
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