System Space Requirements

Ergo™ Patient Chair and Ottoman

Magnet System

• Type: Superconducting, passive shims
  

• Field Strength: 1.0 Tesla, passive shield
  

• Fringe Field: 0.5 mT line 1.8 m axial x 1.25 m radial

• Helium Capacity: < 25 liters liquid helium

• Size: 500 mm long, 600 mm OD, 280 mm ID

• Field Stability: < 0.1 ppm/hr

• Magnet Weight: < 1400 lbs (635 kg)

• Compressor Weight: 350 lbs (159 kg)

Gradient System

• Strength: 15 mT/m
  

• Slew Rate: 60 T/m/s
  

• Rise Time: 250 microseconds

• Frequency: 42.6 MHz ±500 kHz
  

• RF Power: 500 W peak rms, 50 W average
  

• Image BW: Variable 5kHz - 100kHz
  

• Preamp Noise Fig: < 0.5 dB

RF Coils

• 180 mm Coil: The 180 mm diameter coil is used for routine lower extremity imaging of the foot, ankle, leg, and knee.

• 160 mm Coil: The 160 mm diameter coil is a specialty coil that offers up to a 40% increase in SNR (signal-noise ratio) for imaging medium to small-sized knees and feet and larger sized elbows and hands.

• 145 mm Coil: The 145 mm diameter coil is for imaging small-sized knees and feet and average size elbows and hands.

• 123 mm Coil: The 123 mm diameter coil is used for routine upper extremity imaging of the hand, wrist, forearm, elbow and for high resolution imaging of small feet, ankles and knees.

• 100 mm Coil: the 100 mm diameter coil is used for more tightly-focused imaging of the hand, fingers and knuckles 80 mm Coil: the 80 mm diameter coil can be used for smaller hands and feet typically of young children.

• Type: All are removable quadrature volume transmit and receive coils.

• Patient Access: All coils are cylindrical in design with either 180 mm, 160 mm or 123 mm diameter in the center flared to 200 mm at the patient entrance.

Computer System

• Host Computer: PC based; Pentium IV processor, multithreading, 2.8 GHz min; 80 GByte removable hard drive; 350 W power supply.
  

• OP System: Windows XP
  

• Data Storage: DVD-RAM, 9.4 GByte total (4.7 GByte each side), cased type
  

• Display: 19 inch LCD panel
  

• Data transfer: DICOM 3.0 send/receive and DICOM Worklist*
  

• Camera Support: DICOM Print, most popular direct digital camera protocols
  

• Reconstruction:

Imaging Capabilities

• Sequences: Spin Echo, Fast Spin Echo, 2D and 3D gradient Echo, Fast Spin Echo with Drive Equilibrium(DEFSE), and 3D Dixon Fat Separation (Dixon3D)

• Imaging Options: Inversion recovery, predefined protocols, 3 plane scout imaging, single and double oblique imaging with use of graphical slice selection, RF spoiling, Slice Interleave, Fat Suppression, Min TE, No Phase Wrap, Partial Data, Spatial Saturation, Flow Compensation, Magnetization Transfer, Rectangular FOV

• FOV: 4 cm - 16 cm, variable in 1 mm increments"

• Slice Thickness:

• Matrix:

Image Review

DICOM Conformance