GE Voluson Swift

Color Display Mode
•
v (Velocity)
•
V-T (Velocity + Turbulence)
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V-P (Velocity + Power)
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T (Turbulence)
•
P-T (power + Turbulence)
Real-time Triplex Mode B + M + MCFM in any depth
13.10.4 Spectral-Doppler PW/CW
Operating Modes:
•
PW (Pulsed Wave Doppler, Single Gate)
•
CW (Continuous Wave Doppler)
Transmit frequencies:
•
PW-Doppler: 1.75-18 MHz
•
CW-Doppler: 1.75-16 MHz
Pulse Repetition
Frequency(PRF):
•
PW-Doppler: 0.9 - 22.0 MHz
•
CW-Doppler:1.3 - 40.0 MHz
Sample Volume (Doppler
Gate)
•
Length: 0.7, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15 mm
•
Position: 5 mm to B-scan
•
end Angle correction: - 85º... 0º... + 85º
Power control range: 1 - 100
GAIN range:
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+ 15 to - 25dB (PW)
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+ 15 to -15dB (CW)
WMF (wall motion filter): PW: 30 - 500Hz
CW: 30 - 1000Hz
Zero line shift: ± PRF/2, ± 8 steps
Spectrum Analyzer: FFT (Fast Fourier Transformation) max. 256 frequencies, 256 amplitude levels
PW sweep speeds:
•
Simplex (26,44 / 13.22 / 8.81 / 6.61 / 4.40 / 2.94 cm/s)
•
Duplex/Triplex (8.81/6.61 / 4.40 / 2.94 cm/s)
Review (memory times): >60 s (32MB)
Measurable flow velocities:
•
PW:
○
1cm/s - 8m/s (a = 0˚, 2.0MHz, max. zero shift)
○
1cm/s - 16m/s (a = 60˚, 2.0MHz, max. zero shift)
•
CW:
○
1cm/s - 15.40m/s (a = 0˚, 2.0MHz, max. zero shift)
○
1cm/s - 30.80m/s (a = 60˚, 2.0MHz, max. zero shift)
Signal processing:
•
Dynamic range: 15 steps (10 to 40)
•
Gray maps: 18
•
Tint maps : 11
Scale Display
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Veritical: kHz, cm/s, m/s (selectable)
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Horizontal: 1s marker (big), 1/2 s marker (small)
Screen formats:
•
2D/D: up/down (horizontal): three different sub formats 40/60, 50/50, 60/40% left/
right (vertical): 50/50%
Display Formats:
•
2D/D (duplex update, simultaneous)
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2D+CFM/D, 2D+HD-Flow™/D, 2D+PD/D (triplex update, CW or PW)
•
2D+CFM/PW, 2D+PD/PW, 2D+HD-Flow™/PW (triplex simultaneous, PW only)
Technical Data/ Information
13-18
Voluson™ SWIFT / Voluson SWIFT+ Instructions For Use
5831612-100 R
evision 4