Hitachi/Fujifilm MRI Systems Comparison Chart

Model	AIRIS II .3T	Altaire .7T	Echelon 1.5 T	Echelon Oval	Oasis	Airis Elite	Aperto Eterna	Velocity
Clinical Application	Whole body	Whole body	Whole body	Whole body	Whole body	Whole body	Whole body	Whole body
Configuration	Vertical field, Open MRI	Vertical field, Open MRI	Short bore	Wide oval bore	Vertical field, Open MRI	Vertical field, Open MRI	Open	Open
Synchronization	Cardiac gating, ECG/peripheral, respiratory gating (2 modes)	Cardiac gating, ECG/peripheral, respiratory gating (2 modes)	Cardiac gating, ECG/peripheral, respiratory gating		Cardiac/ECG gating, peripheral pulse gating, respiratory gating	Cardiac/ECG gating, periperal pulse gating, respiratory gating
Imaging Modes	Single, multislice, volume study	Single, multislice, volume study	N/A		Single, multislice	Single, multislice, volume study
FOV	5 cm to 42 cm continuous	5 cm to 42 cm continuous	N/A		45cm in all axis	5cm to 42cm
Magnet Type	Self-shielded, permanent	Self-shielded, superconducting	Superconducting	Superconducting magnet	Superconducting	Self-shielded, permanent	Permanent	Superconducting
Bore Diameter	110 x 43 cm	115 x 47 cm	N/A		N/A	N/A	45cm	Round view
Magnet Weight	15,700 kg	41,700 kg	N/A		15,500kg	15,700 kg		15,400kg
HWD	79 x 111 x 73 cm	256 x 348 x 236 cm	N/A		241 x 254 x 274 cm	183 x 267 x 185 cm
Power Requirements	208/220/240 V, single phase	208 V (+/-) 10%, 3 phase	208/220/240 V, single phase		208/480, three phase	200/208/220/230/240 V (+/-) 10%, single phase
Cooling System	Air-cooled	Water-cooled	N/A	Water-cooled	Water-cooled	Air-cooled
Cryogen Use	No cryogens required	Refill 1/year	Low cryogen boil-off	Zero boil off, 6 years	Refill once / two years	No cryogens required
Field Strength	0.3 T	0.7 T	1.5 T	1.5 T	1.2 T	0.3T	0.4T	1.2T
Strength	15 mT/m	22 mT/m	30 mT/m		33mT/m	21mT/m	22mT	33mT/100mT
5 Guass Fringe Field	2.0 m lateral, 2.5 m vert./long	3.1 m lateral, 3.6 m vertical	N/A	2.5 radial, 4 axial	4.0 m axial, 3.3 m radial	2.0m lateral, 2.5m vertical