Skip to main content

Table 2 Presence and Sensitivity of US features

From: US detection of renal and ureteral calculi in patients with suspected renal colic

US features Presence of the feature Sensitivity%
B-mode marked echogenicity difference 64/206 31,06%
Posterior acoustic shadowing 74/206 35,92%
Twinkling sign 177/206 85,92%
Combination of posterior acoustic shadowing and bmode marked echogenicity difference (and/or) 98/206 47,57%