Skip to main content

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)