Siemens MAGNETOM Verio 3.0T MRI scanner

Siemens MAGNETOM Verio 3.0T Tech Specs (Technical Specifications)

Verio Gantry

• Bore diameter/height of patient opening: 70 cm
• Overall bore length: 173 cm, cover to cover
• Bore length with minimum opening: 163 cm
• In-bore patient comfort features: In-bore lighting (3 levels), in-bore ventilation (3 levels), in-bore intercom, look-out mirror, patient supervision monitor

Verio Magnet

• Configuration: Superconductive, short bore
• Strength: 3 Tesla
• Homogeneity, ppm V-RMS: 4.0 (typical 3.6) ppm @ 50 x 50 x 45 cm DSV, 1.6 (typical 1.2) ppm @ 40 DSV, V-RMS (based on 24-plane plot)
• Dimensions of maximum useful FOV and homogeneity, (x, y, z), cm: 50 x 50 x 45
• Frequency drift, ppm/day: <0.1 ppm/hr
• Shielding: Active, EIS (external interference shielding)
• Main magnet shimming: Active, passive
• Patient specific shimming: 3 linear channels with 20 coils, 5 nonlinear second-order channels with 32 coils
• Cryogen refill frequency: Refill typical 10 years; zero He boil-off technology

Planning and Installation

• Overall gantry dimensions (including covers), W x H x L: 2.15 x 1.63 x 2.22 m
• Minimum ceiling height: 2.4 m
• Extent of fringe field (0.5 mT, 5 gauss) in x, y, z directions, m: 4.6 (axial) x 2.5 (radial)
• Total weight w/cooling, shielding, gradient/body coil: 8,290 kg (18,238 lb)
• Minimum dimensions of opening required for installation, W x H: 2.4 x 2.20 m
• Minimum installation area for magnet: 33 m2
• Minimum total installation area for system: 33 m2
• Total number of cabinets required: 2

Power Consumption

• Line Voltage: 380, 400, 420, 440, 460, 480 V
• KVA: 110
• Clinical Use: Whole body
• DICOM (GANTRY)     
• Modality worklist SCU: Standard
• MR Image Storage SCU: Standard
• Query/Retrieve SCU and SCP: Standard
• Storage commitment SCU: Standard
• Modality performed procedure step SCU: Standard
• IHE profiles supported: Standard

Control Console Workflow

• Standard user interface: syngo, multimodality user interface
• Operating system: Windows
• Local hard disk capacity: 145 GB
• RAM: 2 GB
• Removable media: CD
• Image protocol sharing: Phoenix: DICOM image-based method duplicates protocol via drag and drop; MAGNETOM World posts Phoenix images on Web
• Features designed to enhance workflow: Autoalign, Phoenix, scan assistant, inline technology, syngo, iPAT(GRAPPA), Tim assistant, utilization management reports, structured reporting, others

Acoustic Noise

• Sound pressure level (SPL) at peak gradient amplitude and slew rate: 115 dB(A)
• Reduction technology: Antivibration mounting, noise reduction, systems integration, whisper mode, others

Sequence Selection

• Spin echo (Minimum TR ms)    
• Minimum TR, 256 matrix, 30 cm FOV, msec: 6.8, 6.2 for 128 matrix

Gradient echo

• Minimum TR, 256 matrix, 30 cm FOV, msec: 1.5, 1.4 for 128 matrix
• Minimum possible TE, msec: 0.29 for EPI matrix 64 in readout
• Fast-spin-echo max train length: 512
• Echo planar imaging max train length: 256

Verio Scanning Techniques

• Echo Planar Imaging: Yes, standard
• Single shot: Standard; SE, FID
• Multi shot: 2-D/3-D segmented; SE and FID
• EPI pulse sequences: Standard; single-shot, multi-shot
• Maximum EPI factor: 256
• Neurologic imaging: Standard with neuro suite
• Perfusion: Standardwith neuro suite
• Diffusion weighted imaging: Standard with neuro suite
• Diffusion tensor imaging: Up to 256 diffusion directions, up to 16 B-values, 3-D tractography, exponential ADC, texture diffusion
• Functional MRI: StandardBOLD sequence; optional inline BOLD sequence, 3-D PACE
• Spectroscopy (nuclei of interest): Optional single voxel spectroscopy, CSI for hydrogen nuclei (STEAM, spin echo techniques)
• MRA: Standard with angio suite
• Time of flight: Standard 2-D/3-D TOF, ceMRA
• Peripheral: Standard ceMRA protocols
• Bolus tracking: Standard bolus tracking protocols, Care Bolus
• Interventional MR: Optional
• Cardiac imaging: Optional flow quantification, Argus flow (mean/max velocity, color-coded velocity), Argus function (peak/mean velocity, total flow); optional ARGUS 4-D ventricular analysis
• Cine: Standard CINE sequences
• Coronary artery: Standard 2-D; optional 3-D
• Ecg gating: Standard wireless, inline ECG
• Motion compensation: Yes
• Prospective respiratory gating: Standard 2-D PACE
• Maximum number of dimensions: Up to 6
• Additional (Alarms, high/low)     T/R knee coil, T/R wrist coil

Gradient system

• Standard name: VQ gradient
• Standard strength, z-axis, mT/m: 45, in x, y, z-axis
• Standard slew rate, z-axis, T/m/s: 200
• Cooling type: Water
• Amplifier max power/axis, kW: 2,000 V; 625 A
• Amplifier cooling type: Standard cooling, optional chiller

Verio Coils

• Integrated body: Standard
• Type: Array, receive only
• Number of independent channels: 8, 18, 32
• Parallel imaging compatible: Yes
• Head: Standard
• Diameter, cm: 30 (L) x 30 (W) x 33 (H)
• Number of elements: 30 x 28
• Number of independent channels: 8, 18, 32
• Mirrors for patient head: Yes
• Neck: Standard
• Coverage (head to foot), cm: 118
• Number of elements: 30 x 28
• CTL spine: Standard
• Number of elements: 30 x 28
• Cardiac/abdomen: Standard
• Dimensions, L x W, cm: 32 x 52 x 4 (H)
• Flexible (Equivalent Endoscope): Yes
• Number of elements: 30 x 28
• Breast: Optional
• Bilateral: Yes
• Biopsy access: Yes
• Number of elements: 30 x 28
• Shoulder: Optional
• Dimensions, L x W, cm: 32 x 52 x 4 (H)
• Number of elements: 30 x 28
• Whole abdomen: Optional with up to 4 body matrix coils combined
• Number of elements: 30 x 28
• Extremity: Optional
• Diameter, cm: 86 x 30
• Diameter, cm: 27 x 29
• Length, cm: 40.5
• Number of elements: 30 x 28
• Length, cm: 28 (H)
• Number of elements: 36
• Number of independent channels: 8, 18, 32
• Peripheral vascular: Optional
• Diameter, cm: 30 x 28
• Length, cm: 86

Patient Table

• Detachable: Optional removable tabletop and trolley
• Dimensions, L x W, cm: 238 x 63
• Horizontal speed, cm/s: 20
• Elevating: Standard
• Minimum height, cm: 50
• Limited mobility: 250 kg (550 lb)
• Fully mobile: 250 kg (550 lb)

Image processor

• Clock speed, GHz: 3.06
• Operating system: 2x AMD Opteron 248 CPU generation
• Dedicated RAM (Reconstruction): 8 GB

Image Reconstruction

• Maximum number of 256 x 256 slices per acquisition sequence: 110,000 images at 512 x 512, uncompressed
• Number of slices per sec (256 matrix): 8,694 recons/sec 256 x 256 25% rec FOV; simultaneous scan and reconstruction =8 data sets
• Maximum matrix: 1024 x 1024
• Minimum slice thickness 2-D/3-D, mm: 0.1/0.05
• Minimum FOV, cm: 0.5
• Maximum FOV, cm: 50

Quantitative image analysis tools   

• Perfusion imaging: Standard calculation time-to-peak maps; optional inline perfusion (GBP, PBP, TTP)
• fMRI: FuncTool standard; standard calculation t-test maps; optional inline bold evaluation (motion correction, t-test, t-value, color overlay)
• Diffusion imaging: StandardADC map calculation; optional inline diffusion (real-time calculation trace and ADC maps)
• Body imaging: Standard 1-D, 2-D PACE, dynamic analysis package includes addition, subtraction, division, multiplication, ADC maps, T1, T2, z-score, TTP, standard deviation
• 3-D image reconstruction: Standard MIP, targeted MIP, MPR (including curved reconstructions), surface shaded display, MinIP; optional image fusion, vessel view, 3-D VRT, fly through

RF system

• Power output, kW: 33
• Amplifier type: Compact air cooled
• Standard number of channels: 8
• Optional channel configurations: 18, 32
• Receiver bandwidth, kHz: 1,000 per channel
• Location of coil connector (plug): Patient table
• Standard length of coil cables, m: Variable
• Number of coil connectors (plugs): 10
• Coil tuning technique: Automatic

Parallel imaging    

• Name: iPAT
• Technique: mSENSE and GRAPPA
• Calibration Technique: Automatic
• Maximum parallel acquisition acceleration factor: Standard 4; optional 16