Siemens Acuson S2000, Instructions For Use Manual

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Appendi x A Technical Des cription
A - 8 Instructions for Use
Pulsed Wave Doppler Features
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Doppler measurements and calculations available for all linear, curved, and phased array
transducers
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Fast Fourier Transformation (FFT) processing of 32 to 256 points
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FFT speed up to 1,920 FFTs per second at the highest sweep speed

Up to four user-selectable transmit frequencies per transducer

Simultaneous 2D-mode and Doppler display and 2D/Doppler with color (Triplex)
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User-selectable Doppler update mode
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User-adjustable Doppler scale and position controls
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Angle correction of 0° to 89° in one degree increments
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Transmit frequencies of 2 to 7.5 MHz
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Downshift frequency and high-PRF Doppler
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Doppler grayscale and colorization (tint) maps
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Spectral invert
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User-selectable frequency (kHz) or velocity (m/s) display format

Wall filter selections: 20 Hz to 1,600 Hz

Adjustable Doppler Gate size from 0.1 cm up to 4.0 cm, depending on the transducer

Flow angle correction on real-time or frozen images, with velocity readout update

PRF range from 100 Hz to 52,000 Hz

Doppler signal processing that enables automatic calculation of waveform statistics during
real-time imaging

Derived waveform Doppler trace function analyzes frozen Doppler spectrum for mean and
maximum velocity information. Waveform may be set to trace above baseline, below
baseline, or both.

Doppler audio output while in Doppler cursor mode
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Doppler CINE control feature — up to 30 seconds of Doppler data can be stored
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Five sweep speed selections
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Gain of 0 dB to 90 dB in one decibel increments
Steerable Continuous Wave Doppler
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Steerable continuous wave Doppler for phased array transducers