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. 2020 Jun 19;10(3):136–143. doi: 10.1016/j.afjem.2020.04.011

Table 2.

Diagnostic accuracy of novice FoCUS by target condition.

FoCUS target condition
Diagnostic accuracy of novice FoCUS
Target condition True positives
(no. %)
True negatives
(no. %)
Sensitivity
(no. %)
Specificity
(no. %)
PPV (%) NPV (%)
Reduced ejection fraction 13/27 (48.2) 14/27 (51.9) 10/13 (76.9) 8/14 (57.1) 62.5 72.7
Hyperdynamic contractility 0 (0.0) 27/27 (100.0) NA 26/27 (96.3) NA 100.0
Right ventricular dilatation 4/27 (14.8) 23/27 (85.2) 2/4 (50.0) 17/23 (73.9) 25.0 89.5
Pericardial effusion 5/27 (18.5) 22/27 (81.5) 2/5 (40.0) 19/22 (86.4) 40.0 86.4
Left pleural effusion 5/27 (18.5) 22/27 (81.5) 2/5 (40.0) 16/22 (72.7) 25.0 84.2
Right pleural effusion 5/27 (18.5) 22/27 (81.5) 0/5 (0.0) 18/22 (81.8) 0.0 78.3
Normal scan 13/27 (48.2) 14/27 (51.8) 7/13 (53.9) 10/14 (71.4) 63.6 62.5

PPV = positive predictive value; NPV = negative predictive value; NA = not applicable.