Fig. 2.
Echo Comet Score (ECS). (A) Receiver operating characteristics curve. ECS >25 predicted an increase in filling pressures (E/E’ ratio >9.5) with a sensitivity and specificity of 1.00 (95% CI, 0.69–0.98) and 0.82 (95% CI, 0.66–0.92), positive predictive value of 0.59 (95% CI, 0.33 to 0.82), negative predictive value of 1.00 (95% CI, 0.89 to 0.98), positive likelihood ratio of 5.57, negative likelihood ratio of 0.01, and rate of correct classification of 0.82. The area under the receiver operating characteristics analysis curve (AUC) for ECS = 0.90 (95% CI, 0.81 to 0.99) was used to evaluate the relationship between E/E’ ratio and the number of B-lines. (B) Inconclusive limits of lung ultrasound score, defined as sensitivity and specificity above 90%. E/E' = early mitral flow peak velocity to early diastolic mitral annulus displacement velocity ratio.