Hitachi Airis Vento MRI

The Hitachi AIRIS Vento is a popular 0.3 Tesla whole-body open MRI scanner utilizing permanent magnet technology, widely known for maximizing patient comfort and offering low operational costs. Manufactured initially by Hitachi Healthcare (and supported under Fujifilm following their acquisition of Hitachi's diagnostic imaging business), it serves as a highly efficient alternative to traditional closed, superconductive MRI systems.

Key Technical Specifications

1. Field Strength: 0.3 Tesla permanent vertical field magnet (no liquid helium or water cooling required).
2. Gantry Architecture: Open, two-pillar design featuring a 210° opening at the front and a 70° opening at the back.
3. Gradient System: Air-cooled, low noise system with a maximum strength of 22 mT/m and a maximum slew rate of 55 T/m/s.
4. Patient Table: 73 cm wide motorized table supporting up to 225 kg, equipped with lateral, horizontal, and vertical movements.
5. Facility Footprint: Highly compact, requiring only 20 m² of space and a minimal power supply of 10 kVA.

Patient and Diagnostic Benefits

1. Reduced Patient Anxiety: The wide, panoramic open-sided design makes it highly suitable for claustrophobic, bariatric, pediatric, and geriatric patients.
2. Advanced Sequences: Despite its mid-field status, it incorporates high-field equivalent capabilities like Magnetic Resonance Angiography (MRA), Diffusion-Weighted Imaging (DWI), and MR Cholangiopancreatography (MRCP).
3. High Image Fidelity: Integrates proprietary technologies such as Fine Tune Technology (FITT) for clear angiography, Eddy Current Correction (ECC) to eliminate image distortion, and SuperShim for higher static magnetic field uniformity.

Economic Advantages

1. Minimal Maintenance: Because it lacks a cryogenic cooling system, the scanner avoids expensive helium refills and possesses a remarkably low power consumption profile (approx. 2.5 kW to 10 kVA).
2. Flexible Sourcing: Due to its sturdy and reliable hardware, it remains a heavily sought-after asset in the secondary market, with refurbished units