Page 27 - Journal of Structural Heart Disease Volume 5, Issue 3

Original Scientific Article 66
Figure 2. Comparison of anteroposterior angiogram and cardiac MRI measurements of the RVOT. Scatter plot comparison of antero- posterior angiogram versus; Panel A. cSSFP coronal plane, r=0.65, Panel B. MRA larger diameter, r=0.51, Panel C. MRA smaller diameter, r=0.30, Panel D. 3D-SSFP, r=0.62, Panel E. 3D-SSFP smaller diameter, r=0.43.
Figure 3. Comparison of lateral angiogram and cardiac MRI measurements of the RVOT. Scatter plot comparison of lateral angiogram versus; Panel A. cSSFP sagittal plane, r=0.67, Panel B. MRA larger diameter, r=0.60, Panel C. MRA smaller diameter, r=0.25, Panel D. 3D-SSFP larger diameter, r=0.48, Panel E. 3D-SSFP smaller diameter, r=0.06.
tery (MPA) average measurement was 26.0 ± 4.0 mm and 24.8 ± 6.0 mm for coronal and sagittal planes re- spectively. MRA and 3D-SSFP images were obtained in 18 and 19 patients, respectively. The average RVOT measurement by MRA was 25.6 ± 4.5 mm for the larg- er diameter and 19.4 ± 5.0 mm for the smaller diam- eter. The MPA was 29.5 ± 6.9 mm for the larger diam- eter and 24.0 ± 6.1 mm for the smaller diameter. By 3D-SSFP imaging, the RVOT average measurement was 24.2 ± 4.1 mm for the larger diameter and 19.5 ± 3.9 mm for the smaller diameter; the MPA was 29.6 ±
7.1 mm for the larger diameter and 23.3 ± 4.8 mm for the smaller diameter. Volumetric data for the cohort revealed an average indexed right ventricular end diastolic volume was 118.8 ± 39.6 mL/m2, average right ventricular ejection fraction of 47.8 ± 9.4%, and a pulmonary regurgitant fraction of 32.3 ± 17.1%. See Table 2 for full measurements and volumetric data.
Balloon waist diameter measurements were plot- ted against cardiac MRI measurements to determine correlation. BWD in the AP view (Figure 2) was com- pared to coronal plane of cSSFP images (r = 0.65, p <
Journal of Structural Heart Disease, June 2019
Volume 5, Issue 3:62-69