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% |