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. Author manuscript; available in PMC: 2015 Sep 1.

Published in final edited form as: Acad Radiol. 2014 Jul 4;21(9):1195–1203. doi: 10.1016/j.acra.2014.04.013

ROC analysis for discriminating 280 breast lesions (206 malignant, 74 benign) based on delayed phase kinetics. Percentage washout curve type produced AUC of 0.70 (95% CI: 0.64 to 0.75) and 0.72 (95% CI: 0.66 to 0.77) at 4.5 and 7.5 minutes, respectively (a). Predominant curve type produced AUC of 0.60 (95% CI: 0.54 to 0.65) and 0.61 (95% CI: 0.55 to 0.67) at 4.5 and 7.5 minutes, respectively (b). Worst curve type produced AUC of 0.67 (95% CI: 0.61 to 0.72) and 0.69 (95% CI: 0.63 to 0.74) at 4.5 and 7.5 minutes, respectively (c). Differences in AUC between the 4.5 and 7.5 minute assessments were not significant for any of the delayed phase characteristics (p>0.05).

ROC analysis for discriminating 280 breast lesions (206 malignant, 74 benign) based on delayed phase kinetics. Percentage washout curve type produced AUC of 0.70 (95% CI: 0.64 to 0.75) and 0.72 (95% CI: 0.66 to 0.77) at 4.5 and 7.5 minutes, respectively (a). Predominant curve type produced AUC of 0.60 (95% CI: 0.54 to 0.65) and 0.61 (95% CI: 0.55 to 0.67) at 4.5 and 7.5 minutes, respectively (b). Worst curve type produced AUC of 0.67 (95% CI: 0.61 to 0.72) and 0.69 (95% CI: 0.63 to 0.74) at 4.5 and 7.5 minutes, respectively (c). Differences in AUC between the 4.5 and 7.5 minute assessments were not significant for any of the delayed phase characteristics (p>0.05).

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