Objectives
The study aims to compare cardiac computed tomography (CT) with transthoracic echocardiography (TTE) while demonstrating the correlation between two modalities in term of left ventricular (LV) dimensions and mass in patients referred for transcatheter aortic valve implantation (TAVI).
Background
In clinical routine, TTE is the standard first-line technique and is commonly used for follow-up; however, CT is routinely performed before TAVI. Data comparing between CT and TTE in the assessment of ventricular dimensions are lacking.
Methods
A total of 50 patients (mean age ± SD) underwent CT and TTE. Standard TTE measurements of LV chamber and wall thickness were compared to CT-derived values in the basal short-axis slice and the 4-chamber (4-CH) view
Results
Computed tomography and TTE have a good correlation in the assessment of LV dimensions and mass, (Table) in patients with severe aortic stenosis who underwent CT as part of the routine pre-procedural evaluation before TAVI.
Conclusion
We demonstrate a good agreement between CT and TTE in LV chamber dimension and mass measurements in patients with severe aortic stenosis
|
Table 1. measurements mean and correlation
|
|
|
Mean (SD)
|
Cardiac CT
|
Echocardiography
|
Correlation
|
P value
|
|
Septal thickness
|
14.31 (2.38)
|
12.7 (2.23)
|
0.3
|
0.03
|
|
LVEDD
|
44.11 (10.36)
|
46.2 (8.83)
|
0.6
|
<0.001
|
|
LVESD
|
47.9 (8.35)
|
29.9(8.56)
|
0.6
|
<0.001
|
|
LV mass
|
151.9 (65.7)
|
206.3 (71)
|
0.5
|
<0.001
|
|
LA area
|
67.2 (6.3)
|
24.2 (6.6)
|
0.6
|
<0.001
|
| |
|
|
|
|
