Fig. 3From: Increased iron deposition in nucleus accumbens associated with disease progression and chronicity in migraineReceiver operating characteristic (ROC) curves for iron deposits in nucleus accumbens (NAC). A ROC curve for the QSM value of NAC to diagnose migraineurs from controls. The area under the curve (AUC) was 0.883. B ROC curve for the QSM value of NAC to diagnose patients with chronic migraine from those with episodic migraine. The AUC was 0.797Back to article page