Evaluation of right heart geometry and function in PH patients: Correlation between echocardiographic and CMR data
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2018-10-04 |
ISBN 978-609-95750-6-3 (Online)
The content of the abstracts presented is the responsibility of their authors and co-authors. The abstracts are arranged in sequence according to the congress program
Introduction Assessment of the right heart geometry and function is essential for patients with pulmonary hypertension (PH) since right ventricle (RV) dysfunction has a prognostic value. Cardiac magnetic resonance (CMR) is an accurate method for evaluation of RV structure and function. However, transthoracic 2D echocardiography (TTE) is often used clinically for patients with PH and the accuracy of echocardiographic evaluation of RV remain controversial. Aims and Objectives The objectives were to analyze the value of echocardiographic right heart indices: RV end-diastolic diameter (RVEDD), RV velocity of the tricuspid anular systolic motion (RV S’), tricuspid annular plane systolic excursion (TAPSE), RV fractional area change (FAC) and right atrium diameter (RAD) and CMR derived parameters: RV end-diastolic volume (RVEDV), RV ejection fraction (RVEF) and right atrium area (RAA) and determine the relation between echocardiographic and CMR derived right heart parameters in patients with precapillary PH. Materials and methods A total of 35 patients with confirmed precapillary PH on right heart catheterization (mean pulmonary artery pressure 55.91 ± 15.87 mmHg, pulmonary capillary wedge pressure <15 mmHg) were included into analysis. CMR and TTE images were retrospectively reviewed. RVEDD, RV systolic function parameters (RV S’, TAPSE and FAC) and RAD were evaluated using TTE and RVEDV, RVEF, RAA - using conventional CMR software (syngo.via; Siemens Healthcare). Pearson correlation and linear regression analysis were performed. Results The average age of the patients was 57 ± 14 years with a majority of women (69%). Echocardiographic measures were as follows: mean RVEDD 45.43 ± 7.75 (range from 24 to 70) mm, RV S’ 10.16 ± 2.37 (6 to 14) cm/s, TAPSE 17.65 ± 3.59 (10 to 24) mm, FAC 31.81 ± 9.69 (range from 14.3 to 58.7) % and RAD 50.29 ± 7.27 (38 to 65) mm. The averages of CMR measures were as follows: RVEDV 80.8 ± 29.72 (range from 38 to 186) ml, RV