Keywords:
Cardiovascular system, Cardiac, Contrast agents, CT-Angiography, MR-Angiography, CT, Ablation procedures, Computer Applications-3D, Education, Cardiac Assist Devices, Congenital, Ischaemia / Infarction
Authors:
O. Y. Dariy, S. Aleksandrova, V. Bereznitskiy, L. Yurpol’skaya, V. Makarenko, L. Bockeria; Moscow/RU
DOI:
10.1594/ecr2018/C-0278
Methods and materials
We performed 25 CMR studies with the patient supine using clinical 3 T scanners (Achieva,
Philips Healthcare,
Best,
The Netherlands) equipped with advanced cardiac package,
radiofrequency magnetic field shimming (MultiTransmit) technology and a 32-channel coil,
in the age of patients 36±17.
Patients underwent a standardized imaging protocol for assessment of cardiac function and size.
Modified Look-Locker Inversion Recovery (MOLLI) T1 maps and LGE images were obtained for interatrial septum (IAS) 4ch view and 3 short axis slices of left ventricular before and 15 min after the contrast agent injection (TE/TR/flip-angle (FA): 1.64 ns/3.3 ns/50°,
voxel size 1.8 × 1.8 × 8 mm,
phase encoding steps n = 166,
11 images from three inversions (3 + 3 + 5) with 3- heartbeat pauses prior to the second and third inversions and an adiabatic prepulse).
The left atrium (LA) volume was calculated using the formula: Volume (V) = 0,85 × (Area 4CH × Area 2CH ⁄ Length.
Statistical analysis was performed using Spearman’s Rank correlation coefficient.