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CardioSoft ECG

12-Lead ECG for stress and rest from GE Healthcare

The Vyntus CPXMasterScreen CPX and Vmax from Vyaire, seamlessly integrate with the CardioSoft 12-Lead ECG from GE Healthcare, also available from Vyaire. 

Giving you a means to differentiate the cause of exertional dyspnea, the small acquisition module performs both resting and stress measurements, and easily connects to the Vmax or Vyntus CPX computer (PC) by a standard USB port, allowing data to be viewed on a single screen or with dual screens.

  • Quickly and efficiently document arrhythmias during exercise with Arrhythmia Detection, both annotation and classification.
  • T-wave Alternans describe the ECG pattern specific to the cardiac repolarization that results in an alternation of the T-wave morphology on an every-other-beat basis.
  • Provides continuous storage of up to 12 leads for safety and colour code arrhythmias for easy viewing.
  • Cubic Spline and Finite Residual Filtering (FRF) provide high-quality baseline correction and artifact resolution without sacrificing ST measurements.
  • Patient data automatically transfers between CardioSoft and Vyaire Vmax, Vyntus CPX, and MasterScreen CPX metabolic carts.
  • Comprehensive interface encompasses wide range of treadmills and ergometers.
  • Data can be exported to Microsoft Word and Microsoft Excel formats.
  • Use as integrated ECG or resting ECG.
Specifications
Signal processing
ECG analysis frequency 500 Hz
ST measurements ST amplitudes, slopes, integral, index, ST/HR loops, ST/HR index up to 15 leads
E, J and post-J point Manual or computer selected
Signal processor technique Incremental median updating
Baseline correction Cubic spline or Finite Residual Filter algorithm
QRS detection and analysis Based on automatic or manual lead selection
ECG output Real-time ECG/QRS beep/ITL synchronized output
Reanalysis Post-test medians measurements from E, J and post-J point selections
Data acquisition
Technology Active, "Type BF" floating isolated powered 14 channel acquisition module with built-in lead-fail detection and lead prep impedance measurement
Sampling rate Over sampling at 40,900 Hz, 12 leads
Dynamic range 320 mV, +- 10 mV signal superimposed on +- 150 mV DC offset
Resolution 4.88 µV/LSB at 500 Hz
Noise <15 µV peak-to-peak noise over 0.01 to 150 Hz (-3 dB) bandwidth
ECG analysis frequency 500 Hz
ST measurements
High pass filter 0.01 Hz with DC offset control
Low pass filter 20, 40, 1200, 150 Hz (selectable)
Line filter 50.0 or 60.0 Hz notch filter (selectable)
Baseline correction Cubic spline algorithm
Artifact/baseline correction FRF algorithm
Common mode rejection >140 dB (123 dB with AC filter disabled)
Input impedance >10 MOhm at Hz, defibrillator protected
Patient leakage <10 µA
Pace detect Orthogonal LA, LL and V6; 750 µV at 50 µs


All Vyaire ergometers and treadmills connect serially to CardioSoft ECG. 
The Viasprint ergometer may also connect to the Vmax analogue pod box if desired.

X=Standard feature
O=Optional feature
CardioSoft*Vyntus CPXVmax CPETMasterScreen CPX
CardioSoft base system
X
X
X
Display configuration
X
X
X
6/12-lead exercise test
X
X
X
ST measurement
X
X
X
Arrhythmia detection
X
X
X
Arrhythmia documentation
X
X
X
Full disclosure
X
X
X
Analog output of heart rate
X
X
X
Resting ECG I interpretation**
X
X US; 
O outside US
X
T-wave Alternans
O
O
O
Advanced data export to Word
O
O
O
Advanced data export to Excel
O
O
O

Interfacing Vyaire ergometers and treadmills
U.S.
Ergometers
Viasprint 150
Lode Corival adult
Lode Corival paediatric
Lode Corival recumbent
Treadmills
Trackmaster 425x (all configurations)
Outside U.S.
Ergometers
Viasprint 150P and 200P
Lode Corival adult
Lode Corival paediatric
Lode Corival recumbent
Ergoselect 1200P stress echo
Lode Excalibur Sport
Treadmills
LE 100-720C

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