Table 1 Twinkling sign and group of grey-scale examinations
From: US detection of renal and ureteral calculi in patients with suspected renal colic
Results of grey-scale examinations | Numbers of calculi | Twinkling sign sensitivity |
|---|---|---|
absolutely positive | 98 | 100% (98/98) |
doubtful positives | 71 | 100% (71/71) |
not visible | 37 | 21,62% (8/37) |