| Specifications | 
            THE FONAR UPRIGHT® WEIGHT-BEARING MRI (also known as the Stand-Up® MRI) | 
          
           
            |  Unique Applications | 
            Rotates patients from recumbent to upright | 
          
           
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            Comparative scans in both Upright and Recumbent positions | 
          
           
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            Flexion, Extension, Standing, Sitting and Lateral Bending positions | 
          
           
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            Scans patients in their position of symptoms | 
          
          
		   
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            Ideal for anxious and claustrophobic patients | 
          
           
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            The only choice for patients that cannot lie down | 
          
           
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            | Magnet | 
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            | Field Strength | 
            0.6 Tesla | 
          
           
            | Magnet Type | 
            Iron-frame Electromagnet | 
          
           
            | Cooling System Type | 
            Water (closed-loop); No Cryogens | 
          
           
            | Field Orientation | 
            Horizontal, transverse to the patient | 
          
           
            | Configuration | 
            Front-Open and Top-Open | 
          
           
            | Patient Gap Dimensions | 
            18 inches (46cm) pole-to-pole | 
          
           
            | Patient Comfort | 
            Upright/Sitting patient faces out and can watch a large flat-screen TV with an unobstructed view | 
          
           
           
            | Patient Bed | 
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            | Positioning Capabilities | 
            Translate, Elevate & Angulate | 
          
           
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            Rotates patient from recumbent to upright | 
          
           
            | Patient Stabilization | 
            Table tilts backward at 7 degrees to reduce patient motion | 
          
           
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            Patient immobilization fixtures | 
          
           
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            VersaRest™ trans-polar stabilization bars | 
          
           
            | RF Receiver Coil Placement | 
            RF coils mount easily to movable fixtures | 
          
           
            | Patient Weight Limit | 
            500 lbs. | 
          
           
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            | Radiofrequency System | 
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            | Transmitter Configuration | 
            Dedicated, Circularly Polarized, Planar | 
          
           
            | Receiver Configuration | 
            Dual-channel | 
          
           
            | RF RECEIVER COILS | 
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            | Standard Package | 
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            | Solenoid/Linear  | 
            High-Performance Spine & Body Wide Belts (45", 55", 65" | 
          
           
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            Flexible Cervical | 
          
           
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            Signal-Plus Universal Coils | 
          
           
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            Solenoid Wrist | 
          
           
            | Advanced Coil Package | 
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            | Planar | 
            Quadrature Planar Coil and fixture | 
          
           
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            [Note that the Upright MRI is dramatically different than an Open MRI as if utilizes planar (flat) coils to image the spine, just like a high-field MRI] | 
          
           
            | Quadrature | 
            Quadrature Head Coil | 
          
           
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            Quadrature T-L (Thoracic-Lumbar) Coil | 
          
           
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            Quadrature Knee Coil | 
          
           
            | Phased Array | 
            Shoulder (with Immobilization Fixture) | 
          
           
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            | Computer System | 
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            | Operating System | 
            Windows 2003 Server | 
          
           
            | CPU | 
            Dual Intel Quad-Core processors | 
          
           
            | Memory size, GB | 
            8.0 GB | 
          
           
            | Online Storage | 
            Three 146 GB disk drives configured in a redundant RAID array with a storage capacity of 290GB | 
          
           
            | Array processor | 
            Not required | 
          
           
            | Reconstruction Speed | 
            < 0.1 sec per 256x256 image | 
          
           
            | Storage media | 
            CD/DVD (5GB) | 
          
           
            | Connectivity | 
            Dicom 3.0 including Store, Print, Query, Retrieve and Modality Worklist | 
          
           
            | Console Configuration | 
            Dual-screen 1280x1024 19-inch LCD flat panel monitors with full screen dedicated to image review | 
          
           
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            | Gradient System | 
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            | Type | 
            Bi-planar self-shielding | 
          
           
            | Maximum Strength (mT/m) | 
            20 | 
          
           
            | Slew Rate (T/m/s) | 
            33 | 
          
           
            | Minimum Slice Thickness | 
            2.0 mm (2DFT) | 
          
           
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            0.8 mm (3DFT) | 
          
           
            | Minimum Field-of-View | 
            6.0 cm | 
          
           
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            | Imaging Techniques | 
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            | Pulse Sequences | 
            Spin Echo (SE) | 
          
           
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            Multi-echo spin echo (MSE) | 
          
           
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            Dual bandwidth Double-echo (DE) | 
          
           
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            Fast Spin Echo (FSE)
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            Inversion Recovery Spin Echo (IRSE) | 
          
           
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            Inversion Recovery FSE (IRFSE): STIR, FLAIR | 
          
           
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            Driven Equilibrium FSE (DEFSE) | 
          
           
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            Driven Equilibrium IRFSE (DEIRFSE) | 
          
           
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            Single-shot FSE (SSFSE) | 
          
           
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            Gradient Echo (GRE): | 
          
           
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            Fat/Water out-of-phase | 
          
           
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            Multi-echo GRE (Fat/Water in/out/in phase) | 
          
           
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            Gradient Spoiled GRE | 
          
           
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            Steady-State GRE: | 
          
           
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            RF Spoiled GRE, Steady-State Rephased GRE | 
          
           
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            MR Angiography: | 
          
           
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            2D-TOF and 3-D-TOF | 
          
           
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            Ramped RF | 
          
           
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            | Sequence Controls | 
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            | Fast Spin Echo | 
            Driven Equilibrium | 
          
           
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            Echo Train Length, Echo Offset, Echo Spacing | 
          
           
            | Gradient Echo | 
            Flip Angle | 
          
           
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            Steady-State, RF Spoiling, Rephased | 
          
           
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            Magnetization transfer (MT) | 
          
           
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            Direction of flow saturation | 
          
           
            | Scan orientations | 
            Multi-Angle Oblique (MAO™), Dual-Axis Oblique | 
          
           
            | Preparation Pulses | 
            Presaturation pulses | 
          
           
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            Magnetization transfer (MT) | 
          
           
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            Frequency Selective Saturation (e.g. fat, water, silicone) | 
          
           
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            Diffusion-Weighted (DWI) | 
          
           
            | Trigger/Timing | 
            Test Bolus | 
          
           
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            Breathhold, Fluorscopic | 
          
           
            | Reconstruction | 
            Fast Fourier Transform (DFT): 2DFT, 3DFT | 
          
           
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            Partial (Half) Fourier | 
          
           
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            ZIP interpolation | 
          
           
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            2-point Dixon, 3-point Dixon for Fat Suppression | 
          
           
            | Firing Order  | 
            Cross-talk minimization  | 
          
           
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            Interleaved | 
          
           
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            Interleaved by Subscan (e.g. breathhold) | 
          
           
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            Sequential | 
          
           
            | Data Acquisition | 
            Rectangular FOV (continuously variable phase sampling ratio) | 
          
           
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            Multiple Sub-Scanning | 
          
           
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            Centric Phase Encoding | 
          
           
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            Flow Compensation, Ramped RF | 
          
           
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            Low Bandwidth, Multi-bandwidth | 
          
           
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            Continuously Variable Display Matrix  | 
          
           
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            Swap Frequency and Phase | 
          
           
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            Repeat and Replace Slices | 
          
           
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            Continuous Scan Mode, Breath-hold Imaging, Kinematic Mode | 
          
           
            | Prescan Indicators | 
            Relative resolution | 
          
           
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            Absolute resolution (frequency and phase) | 
          
           
            | Post-Processing | 
            MIP with rotate, tumble, pan | 
          
           
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            Image enhancement | 
          
           
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            Bright Balance™ | 
          
           
            | Display and Analysis | 
            Windowing, ROI, zoom, pan | 
          
           
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            Cursors, profiles, derivatives, mean, standard deviation | 
          
           
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            Image subtraction | 
          
           
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            SNR measurements | 
          
           
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            Image Viewing Software (IVS) for referring physiciand to view their patients' scans on a CD |