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. 2013 Feb;27(2):149–153. doi: 10.1089/end.2012.0430

FIG. 1.

FIG. 1.

Receiver operator characteristic (ROC) curves for twinkling artifact and B-mode ultrasonography in the detection of kidney stones. Although the areas under the ROC curves are similar for both ultrasound methods, the independent performance characteristics differ with greater sensitivity of B-mode ultrasonography, but greater specificity of twinkling artifact ultrasonography.