Keywords: Sparse & Low-Rank Models, CancerNasopharyngeal carcinoma (NPC) is a common malignancy in Southeast Asia. In this study, we explore the correlation between the quantitative parameters derived from dynamic contrast-enhanced magnetic resonance (DCE-MRI) of NPC with Ki-67 index. Results showed that the Ktrans mean was positively correlated with Ki-67. The Ktrans mean value was significantly higher in cases with a high Ki-67 status than in those with a low Ki-67 status (AUC 0.8519), and the cutoff value, sensitivity, and specificity was 0.479, 77.78%, and 100%, respectively, suggesting the Ktrans parameter of DCE-MRI has the most utility in distinguishing between high and low Ki-67 levels.
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