TY - JOUR
T1 - Bidimensional measurements of right ventricular function for prediction of survival in patients with pulmonary hypertension
T2 - Comparison of reproducibility and time of analysis with volumetric cardiac magnetic resonance imaging analysis
AU - Corona-Villalobos, Celia P.
AU - Kamel, Ihab R.
AU - Rastegar, Neda
AU - Damico, Rachel
AU - Kolb, Todd M.
AU - Boyce, Danielle M.
AU - Sager, Ala Eddin S.
AU - Skrok, Jan
AU - Shehata, Monda L.
AU - Vogel-Claussen, Jens
AU - Bluemke, David A.
AU - Girgis, Reda E.
AU - Mathai, Stephen C.
AU - Hassoun, Paul M.
AU - Zimmerman, Stefan L.
N1 - Funding Information:
Source of Support: This work was supported by National Institutes of Health/National Heart, Lung, and Blood Institute grants P01HL84946-01 and R01 HL114910.
Publisher Copyright:
© 2015 by the Pulmonary Vascular Research Institute. All rights reserved.
PY - 2015/7/20
Y1 - 2015/7/20
N2 - We tested the hypothesis that bidimensional measurements of right ventricular (RV) function obtained by cardiac magnetic resonance imaging (CMR) in patients with pulmonary arterial hypertension (PAH) are faster than volumetric measures and highly reproducible, with comparable ability to predict patient survival. CMR-derived tricuspid annular plane systolic excursion (TAPSE), RV fractional shortening (RVFS), RV fractional area change (RVFAC), standard functional and volumetric measures, and ventricular mass index (VMI) were compared with right heart catheterization data. CMR analysis time was recorded. Receiver operating characteristic curves, Kaplan-Meier, Cox proportional hazard (CPH), and Bland-Altman test were used for analysis. Forty-nine subjects with PAH and 18 control subjects were included. TAPSE, RVFS, RVFAC, RV ejection fraction, and VMI correlated significantly with pulmonary vascular resistance and mean pulmonary artery pressure (all P < 0.05). Patients were followed up for a mean (± standard deviation) of 2.5 ± 1.6 years. Kaplan-Meier curves showed that death was strongly associated with TAPSE <18 mm, RVFS <16.7%, and RVFAC <18.8%. In CPH models with TAPSE as dichotomized at 18 mm, TAPSE was significantly associated with risk of death in both unadjusted and adjusted models (hazard ratio, 4.8; 95% confidence interval, 2.0-11.3; P = 0.005 for TAPSE <18 mm). There was high intra- and interobserver agreement. Bidimensional measurements were faster (1.5 ± 0.3 min) than volumetric measures (25 ± 6 min). In conclusion, TAPSE, RVFS, and RVFAC measures are efficient measures of RV function by CMR that demonstrate significant correlation with invasive measures of PAH severity. In patients with PAH, TAPSE, RVFS, and RVFAC have high intra- and interobserver reproducibility and are more rapidly obtained than volumetric measures. TAPSE <18mmby CMR was strongly and independently associated with survival in PAH.
AB - We tested the hypothesis that bidimensional measurements of right ventricular (RV) function obtained by cardiac magnetic resonance imaging (CMR) in patients with pulmonary arterial hypertension (PAH) are faster than volumetric measures and highly reproducible, with comparable ability to predict patient survival. CMR-derived tricuspid annular plane systolic excursion (TAPSE), RV fractional shortening (RVFS), RV fractional area change (RVFAC), standard functional and volumetric measures, and ventricular mass index (VMI) were compared with right heart catheterization data. CMR analysis time was recorded. Receiver operating characteristic curves, Kaplan-Meier, Cox proportional hazard (CPH), and Bland-Altman test were used for analysis. Forty-nine subjects with PAH and 18 control subjects were included. TAPSE, RVFS, RVFAC, RV ejection fraction, and VMI correlated significantly with pulmonary vascular resistance and mean pulmonary artery pressure (all P < 0.05). Patients were followed up for a mean (± standard deviation) of 2.5 ± 1.6 years. Kaplan-Meier curves showed that death was strongly associated with TAPSE <18 mm, RVFS <16.7%, and RVFAC <18.8%. In CPH models with TAPSE as dichotomized at 18 mm, TAPSE was significantly associated with risk of death in both unadjusted and adjusted models (hazard ratio, 4.8; 95% confidence interval, 2.0-11.3; P = 0.005 for TAPSE <18 mm). There was high intra- and interobserver agreement. Bidimensional measurements were faster (1.5 ± 0.3 min) than volumetric measures (25 ± 6 min). In conclusion, TAPSE, RVFS, and RVFAC measures are efficient measures of RV function by CMR that demonstrate significant correlation with invasive measures of PAH severity. In patients with PAH, TAPSE, RVFS, and RVFAC have high intra- and interobserver reproducibility and are more rapidly obtained than volumetric measures. TAPSE <18mmby CMR was strongly and independently associated with survival in PAH.
KW - Cardiac MRI
KW - Pulmonary arterial hypertension
KW - Survival
KW - Tricuspid annular plane systolic excursion (TAPSE)
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U2 - 10.1086/682229
DO - 10.1086/682229
M3 - Article
C2 - 26401254
AN - SCOPUS:85026336099
SN - 2045-8932
VL - 5
SP - 527
EP - 537
JO - Pulmonary Circulation
JF - Pulmonary Circulation
IS - 3
ER -