Positive contrast high-resolution 3D-cine imaging of the cardiovascular system in small animals using a UTE sequence and iron nanoparticles at 4.7, 7 and 9.4 T

Table 2 CNR values between the blood in the ventricles and the myocardial wall obtained with the UTE sequence at 156 μm isotropic resolution without USPIO and after injection of USPIO at 200 μmol Fe/kg

CNR (left ventricule - left myocardium)		End-diastole	End-systole
UTE 4.7 T	without USPIO	−2.6 ± 0.6	−4.0 ± 0.9
UTE 4.7 T	USPIO 200 μmol Fe/kg	31.4 ± 3.8	30.2 ± 2.2
UTE 7 T	without USPIO	−2.5 ± 0.7	−3.9 ± 0.6
UTE 7 T	USPIO 200 μmol Fe/kg	33.2 ± 4.2	29.2 ± 2.5
UTE 9.4 T	without USPIO	−2.1 ± 0.5	−3.9 ± 0.9
UTE 9.4 T	USPIO 200 μmol Fe/kg	16.3 ± 5.8	15.2 ± 3.2

ISSN: 1532-429X