From: Motion of left atrial appendage as a determinant of thrombus formation in patients with a low CHADS2 score receiving warfarin for persistent nonvalvular atrial fibrillation
Cutoff values
Sensitivity
Specificity
PPV
NPV
LAAPV (≤ 24 cm/sec)
73 (66–80)
75 (68–82)
26 (18–33)
96 (92–99)
LAAEF (≤ 21%)
93 (89–97)
74 (67–81)
99 (97–100)