Table 2

Number of patients with severe aortic valve stenosis and inconsistent grading on CT and echo parameters in different groups. The p values are for comparison between inconsistent grading

Severity parameterAll patients (n=450)Group A* (n=201, 45%)Group B* (n=130, 29%)Group C* (n=119, 26%)P value
Patients with severe stenosisInconsistent grading (CT-AVA≥1) (%)Patients with severe stenosisInconsistent grading (CT-AVA≥1) (%)Patients with severe stenosisInconsistent grading (CT-AVA≥1) (%)Patients with severe stenosisInconsistent grading (CT-AVA≥1) (%)
CT-AVA≤1 cm2 (%)293 (65)NA132 (66)NA88 (68)NA73 (62)NANA
CT-AVAI≤0.6 cm2/m (%)299 (66)NA134 (67)NA93 (72)NA72 (61)NANA
E-AVA≤1 cm2 (%)424 (95)138 (33)182 (93)58 (31.4)126 (99)39 (31)113 (95)41 (35)0.61
E-AVAI≤0.6 cm2/m (%)432 (97)145 (34)190 (95)62 (32.6)127 (99)40 (32)115 (97)43 (37)0.59
Vmax≥4 m/s (%)286 (64)66 (23.0)151 (75)42 (27.8)79 (61)13 (17)56 (47)11 (20)0.12
MG≥40 mm Hg (%)244 (55)37 (15.2)126 (63)25 (20.3)70 (55)7 (10)48 (40)5 (10)0.11
Both Vmax≥4 m/s and MG≥40 mm Hg (%)238 (54)36 (15.1)123 (61)24 (19.5)68 (53)7 (10)47 (39)5 (11)0.15
  • *Group A=echo left ventricular ejection fraction (E-LVEF)≥50% and stroke volume index (SVI)≥35 mL/m2; Group B=E-LVEF≥50% and SVI<35 mL/m2; and Group C=E-LVEF<50%.

  • AVA, aortic valve area; AVAI, AVA index; E-AVA, echo AVA; E-AVAI, echo AVAI; MG, mean pressure gradient; Vmax, maximum flow velocity.