Table 5

Diagnostic accuracy of TTE, TTP and wash-in rate. Ninety-five per cent confidence intervals are reported

ParameterCut-off valueAUCSensitivitySpecificityPPVNPV
TTE≤40.781 (0.612 to 0.901)45.75 (19.8 to 70.1)95 (75.1 to 99.9)87.5 (47.3 to 99.7)67.9 (47.1 to 99.7)
TTP≤150.758 (0.586 to 0.885)75 (46.7 to 92.7)75 (47.6 to 92.7)70.6 (44 to 89.7)78.9 (54.4 to 93.9)
Wash-in≤40.781 (0.612 to 0.901)93.8 (68.8 to 99.8)50 (27.2 to 72.8)60 (38.7 to 68.9)90.9 (58.7 to 99.8)
  • AUC, area under the curve; NPV, negative predictive value; PPV, positive predictive value; TTE, time from injection to enhancement; TTP, time to peak.