Purpose
To compare the use of pulmonary regurgitation fraction (PRF) or absolute value of pulmonary reverse volume (PRV) in the evaluation of pulmonary insufficiency with cardiac magnetic resonance (CMR).
Methods and Materials
We retrospectively studied 44 patients (27 males) with a median age at the first examination of 22 years (interquartile range,
IQR 14–31),
with pulmonary/conduit insufficiency due to various congenital heart diseases who underwent CMR (1.5-T) before and after surgical valve implantation (14 patients) or percutaneous Melody valve implantation (30 patients).
We performed short axis ECG triggered cine true-FISP (fast imaging with steady state precession) and phase contrast sequences.
A radiologist with 6-year CMR experience performed segmentation of endocardial contours of right ventricle (RV) to obtain...
Results
Overall PRF (%),
PRV (ml/beat),
RVEDVI (ml/m²) and SVI (ml/m²) were 26(14–40),
14(5–32),
86(66–123) and 42(35–56) respectively.
RVEDVI was significantly correlated with PRF (r=0.480; p=0.001) and PRV (r=0.549; p<0.001).
RVSVI was significantly correlated with PRF (r=0.605; p<0.001) and PRV (r=0.701; p<0.001).
ΔRVEDVI(19,0–40) was significantly correlated with PRF (r=0.427; p=0.004) and PRV (r=0.489; p=0.001).
Conclusion
PRV is stronger correlated with RVEDVI,
RVSVI and ΔRVEDVI than PRF.
References
Cawley,
P.
J.,
Maki,
J.
H.,
& Otto,
C.
M.
(2009).
Cardiovascular Magnetic Resonance Imaging for Valvular Heart Disease: Technique and Validation.
Circulation,
119(3),
468–478.
http://doi.org/10.1161/CIRCULATIONAHA.107.742486
Chaturvedi,
R.
R.,
& Redington,
A.
N.
(2007).
Pulmonary regurgitation in congenital heart disease.
Heart,
880–889.
http://doi.org/10.1136/hrt.2005.075234
Frigiola,
A.,
Tsang,
V.,
Nordmeyer,
J.,
Lurz,
P.,
van Doorn,
C.,
Taylor,
A.
M.,
… de Leval,
M.
(2008).
Current approaches to pulmonary regurgitation.
European Journal of Cardio-Thoracic Surgery,
34(3),
576–581.
http://doi.org/10.1016/j.ejcts.2008.04.046
Secchi,
F.,
Resta,
E.
C.,
Piazza,
L.,
Butera,
G.,
Di...
