Hitachi Echelon Vega MRI 1.5 Tesla

The Hitachi Echelon Vega is a reliable, high-field 1.5 Tesla (1.5T) superconductive MRI system known for balancing high-quality diagnostic imaging with patient comfort and operational flexibility. Originally developed by Hitachi Medical Corporation (whose healthcare division was later acquired by Fujifilm), the Echelon Vega utilizes a short-bore magnet architecture designed to minimize claustrophobia and fit smaller facility footprints.

Key Technical Specifications

1. Magnetic Field Strength: 1.5 Tesla (T) high-homogeneity superconductive magnet.
2. Magnet Type: Oxford Instruments OR105 Zero Boil-Off short-bore magnet, which prevents liquid helium loss under standard operation.
3. Gradient Strength: 30 mT/m peak amplitude.
4. Slew Rate: 150 T/m/s for rapid spatial encoding and fast sequence timing.
5. RF System: 8-channel or 16-channel configuration utilizing a solid-state RF power amplifier.

Advanced Features & Imaging Workflows

1. RADAR™ (Radial Acquisition Regime): A motion-compensation technology that acquires k-space radially. It minimizes motion artifacts caused by breathing, swallowing, or uncooperative patients without extending total scan time.
2. RAPID™ (Rapid Acquisition through Parallel Imaging Design): Hitachi's parallel imaging technique that drastically reduces scan times while maintaining high signal-to-noise ratios (SNR).
3. Advanced Sequences: Pre-packaged with standard clinical suites including Diffusion-Weighted Imaging (DWI), MR Angiography (MRA) without contrast, and specialized neurological and musculoskeletal packages like TIGRE and VASC-ASL.
4. High Order Shimming System (HOSS): Ensures a uniform magnetic field customized per patient volume for cleaner fat suppression and better image consistency.

Patient Centric Design

1. Short-Bore Gantry: Provides an inviting environment for patients, with a wide aperture to handle diverse body types comfortably.
2. Feet-First Entry: More than nine feet of table travel allows feet-first imaging for almost all exam configurations, greatly reducing patient anxiety.