Research Article

Clinical Impact of Preprocedural CT-Based 3D Computational Simulation of Left Atrial Appendage Occlusion with Amulet

Table 2

Clinical impact in preprocedural sizing.

Patient no.CT (mm)FreixaDecision SoCConfidence SoCDecision FEopsConfidence FEopsImplanted

n = 7 (46.7%)Similar decisions SoC and FEops correlating with implanted device
116 × 172220820920
217 × 222522722922
813 × 192020820820
1027 × 373434434734
1119 × 373431631831
1321 × 363434634834
1419 × 222525625825
Average6.4 ± 1.48.1 ± 0.7

n = 4 (26.7%)Different decisions SoC and FEops. FEops correlated with implanted device
316 × 182220822822
519 × 252825722722
614 × 212222720720
719 × 262828725725
Average7.3 ± 0.57.3 ± 0.5

n = 2 (13.3%)Similar decisions SoC and FEops, not correlating with implanted device
421 × 313131731828
1222 × 232825825628
Average7.57

n = 1 (6.7%)Different decisions SoC and FEops, none correlating with implanted device
1514 × 192222820718
n = 1 (6.7%)Similar decisions SoC and FEops, but no implanted device
922 × 3131317317NA

CT: computed tomography measurement of landing zone, NS: nonsignificant, SoC: standard of care, and Freixa: sizing based on the sizing table from Freixa et al. [6].