DocumentCode :
3747085
Title :
Right ventricular diastolic function evaluation in magnetic resonance imaging
Author :
Nadjia Kachenoura;Emilie Bollache;Alban Redheuil;St?phanie Cl?ment-Guinaudeau;Ludivine Perdrix;Benoit Diebold;Magalie Ladouceur;Elie Mousseaux
Author_Institution :
Sorbonne Universit?s, UPMC Univ Paris 06, INSERM, CNRS, Laboratoire d´Imagerie Biom?dicale, 75013, Paris, France
fYear :
2015
Firstpage :
89
Lastpage :
92
Abstract :
Although few studies demonstrated the ability of MRI dynamic anatomical sequences to assess right ventricular (RV) diastolic function, no data are available for velocity-encoded MRI (VE-MRI). Accordingly, our aim was to evaluate RV diastolic function from VE-MRI, as compared to reference Doppler echocardiography. We studied 109 healthy individuals (67 men, age: 42±15 years) who underwent RV Doppler echocardiography and MRI, on the same day. VE-MRI images were analyzed using custom software, providing: tricuspid flow early peak velocity (E,cm/s) and flow-rate (Ef,ml/s), atrial peak velocity (A,cm/s) and flow-rate (Af,ml/s), longitudinal myocardial early peak velocity (E´). Same velocity parameters were extracted from Doppler echocardiography (E, A, E/A, E´, E/E´). Despite the fair associations between MRl and echocardiographic indices, the highest correlation with age was obtained for MRI flow-rate ratio Ef/Af (r=O. 60). Associations with age for velocity ratios (E/A) were equivalent for MRI and echocardiography (r=0.41). Automatically extracted PC-MRI tricuspid inflow parameters were strongly related to age. These associations were comparable to echocardiography for maximal velocities ratio and were stronger when considering peak flow-rates ratio.
Keywords :
"Magnetic resonance imaging","Image resolution","Image segmentation","Myocardium"
Publisher :
ieee
Conference_Titel :
Computing in Cardiology Conference (CinC), 2015
ISSN :
2325-8861
Print_ISBN :
978-1-5090-0685-4
Electronic_ISBN :
2325-887X
Type :
conf
DOI :
10.1109/CIC.2015.7408593
Filename :
7408593
Link To Document :
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