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A Revolutionary Approach to Ultrasound System Architecture
Vantage Ultrasound System

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Vantage Ultrasound System Vantage Ultrasound System

Overview

Verasonics has developed a revolutionary ultrasound system architecture that provides researchers and developers a unique, flexible platform for ultrasound innovation across many applications.
The Vantage Research Ultrasound Platform uses proprietary hardware and software technologies to provide direct access to raw ultrasound data, while preserving the ability to perform high quality real-time imaging with custom software, at clinically useful frame rates.
The design features that make the system so capable in medical ultrasound R&D also provide significant advantages to the NDT/NDE, Geophysical and Geotechnical, and Educational disciplines as well.

Features

  • An open, software-based research ultrasound platform
  • Fast software beamforming using proprietary, Pixel-Oriented Processing
  • Very high frame rate imaging using plane wave transmit pulses
  • Data acquisition into local memory limited by acoustic travel time, up to 100,000 frames/sec
  • Extremely rapid RF signal data transfer to host computer over PCI express
  • Programmable hardware triggers (input and output) for synchronizing with external devices
  • Thoroughly documented, flexible and easy-to-use programming API
  • Familiar MATLAB scripting environment for development of custom user algorithms and UI
  • Additional software tools to facilitate control script development, analysis, and debugging
  • Rapid integration of custom transducers
  • A set of over 100 example control scripts (programs) for various transducers and applications
  • Real-time system simulator for offline development

Specification

Models Vantage 64 Vantage 64LE Vantage 128 Vantage 256
Channels 64 Tx / 64 Rx 128 Tx / 64 Rx 128 Tx / 128 Rx 256 Tx / 256 Rx
Configurations
Standard Frequency (0.5 - 27 MHz)
High Frequency (1 - 50 MHz) N/A
Low Frequency (50 kHz - 1.5 MHz)
HIFU (External Power Supply) N/A
Licensable Options
Extended Transmit N/A
Arbitrary Waveform
Synchronization Triggers Included Included
Image Reconstruction Included Included Included

✔ = purchasable configuration or option. All Vantage systems can be reconfigured or upgraded to additional options.

Transmit

Center frequency Standard frequency configuration: 0.5~20 MHz
High frequency configuration: 2~42 MHz
Low frequency configuration: 50~1500 KHz
Time delay resolution 4.0 ns
Programmable pulser voltage 3~190 Vp-p
Tri-state drive +high voltage, -high voltage and Ground
Per-channel programmable parameter Center frequency, pulse width (pulse duty cylce), pulse length, polarity and delay
Per-channel transmit apodization Using pulse width modulation
Max burst length 20 cycles at transmit center frequency
(without Extended Transmit option)
Power limit, single channel up to 100 Watts peak, 8 Watts average (into 50 Ohms)

Transmit Options

Extended Transmit option Enables pulses longer than 20 cycles (for radiation force methods and for long coded
excitation pulses)
Arbitrary Waveform option Per-channel programming of tri-state transition timing on a 4 ns grid (includes analog waveform design tool)

Receive

Frequency range Standard frequency configuration: 0.5~27 MHz
High frequency configuration: 1~50 MHz
Low frequency configuration: 50~1500 KHz
Programmable anti-aliasing filter cutoff 5, 10, 15, 20, 30 MHz
(High frequency configuration: 35, 50 MHz)
A/D converters 14 bit, with programmable sample rate up
to 62.5MHz
RF filter Two independent, user-programmable, symmetrical RF data digital filters (23 tap and 41 tap)
Transmit / receive clock jitter less than 4ps RMS
Noise Figure 1.5 to 3.0 dB over programmable input impedance range of 115 to 3000 Ohms (for 100 Ohm probe impedance)

External Synchronization

Trigger input 2 trigger inputs (optional on the Vantage 64/64LE)
Trigger output 1 trigger output (optional on the Vantage 64/64LE)

RF Acquisition

Local buffer memory for RF acquisition 64 MB/channel. Digital averaging, filtering, and decimation may be performed on data prior to transfer to host computer to improve signal to noise and reduce data bandwidth
RF signal accumulation over 1000 acquisitions can be summed, with offset subtraction
Data transfer interface to host conputer PCIe 3.0, 8 lane
Transfer rate Up to 6.6 GB/s

Transducer

Connector Universal Transducer Adapter permits rapid transducer connector change.
260pin connector: support for Verasonics probes. Also compatible with most ATL HDI 1000, 1500, 3000 and 5000 transducers.
360pin connector: 256ch systems, enables compatibility with VisualSonics MS-series transducers.
408pin connector: 128 and 256ch systems, HIFU and high frequency transducers.
408pin GE connector: enables compatibility with GE transducers that use the 408 contact connector.
160-DH/32 LEMO: all Vantage systems, provides 2 Hypertronics connectors for NDT arrays, and 32 single-channel coaxial LEMO 00 connectors.

Software

  • System software includes MATLAB scripts to control Verasonics proprietary beamforming and image processing algorithms, and an extensive collection of medical ultrasound imaging example scripts for Verasonics probes and commonly available (used) ATL HDI ultrasound probes.
  • Individual channel acquisition data and complex reconstruction data available in MATLAB workspace for storage and offline processing, or for custom inline processing in real-time.
  • User-provided MATLAB callable functions (m-functions or compiled ‘mex’ files, including GPU code) can be executed in real-time.
  • Built-in media scattering simulation software for evaluating and verifying acquisition and processing sequences; includes transmit beam visualization and script analysis tools."
  • Documentation includes a Vantage system user guide, an extensive programming reference manual, and a programming tutorial.

Available Options

Extended Transmit option
 
Increases the high voltage power supply’s capability to support long burst sequences up to several milliseconds. (Vantage 64LE/128/256)
HIFU configuration
 
Provides an external power supply for extended transmit operation at 1200W continuous average RF power output. Only available on the Vantage 256 and 128 systems. (Specifications available upon request)
(Vantage 64LE/128/256)
Arbitary Waveform Generation Package
 
Permits user-defined sequences of tri-state transitions that can be programmed independently per-channel at 4 ns intervals (250 MHz clock rate). GUI-based analog waveform design tool kit included.

Accessories

Signal Breakout Board Printed circuit board adapter that plugs into the 260-pin system connector and provides 0.1”
headers for ribbon cable connection to custom transducers. Also includes some space for impedance matching elements. Symmetric boards for left and right connectors on dual 260-pin connector Vantage 256 system.
Transducer Backshell Kit Available to customers who are developing their own transducers, and/or those who want to integrate commercial transducers and have the pin-out information. Available with 0 Ohm tuning or unpopulated with pads for tuning elements.
Verasonics Transducers P4-2v phased array: 64-element
C5-2v curved linear array: 128-element
L11-4v broadband linear array: 128-element
L12-3v broadband linear array: 192-element with HVMux
L22-14v broadband linear array: 128-element

Power Requirements and Physical Dimension

Voltage 100-240 V (50-60 Hz)
Size(L×W×H) 49cm×28cm×48cm (data acquisiton system)
42cm×18cm×47cm (host computer)
Total weight of all components 35-44 kg (depending on configuration)

Modes Provided as Examples

All modes and techniques can be performed in real-time with clinically useful frame rates.
These modes can be interleaved as desired ... also in real-time.

  • Conventional line mode (one focused beam transmission per scanline)
  • Flash imaging (flat phase “plane-wave” imaging)
  • Multi-angle flash imaging
  • Overlapping beams
  • Spatial compounding, frequency compounding
  • Pulse inversion harmonic imaging
  • Synthetic aperture, and full matrix capture (ideal) acquisition and reconstruction
  • Receive-only beamforming (for photoacoustics)
  • Very high frame rate acquisition using unfocused transmission
  • Very high frame rate “ultrafast”color Doppler
  • Conventional color flow and power Doppler
  • Plane wave color flow and power Doppler
  • Conventional spectral Doppler
  • Vector Doppler imaging capable (example under development)
  • Wide-area, multi-point spectral Doppler capable (example under development)
  • Ablative HIFU transmission with interleaved imaging

Additional Modes Implemented by Users on Verasonics Systems

  • ARFI - radiation force and push techniques
  • Elastography Imaging (e.g., Shear Wave, ARFI)
  • Cardiac strain imaging
  • Low MI contrast imaging
  • Photoacoustics / optoacoustics
  • Radiation force targeting and displacement of kidney stones
  • Speckle tracking: motion tracking, thermometry, HIFU monitoring
  • Functional imaging
  • Microbubble / nanoparticle imaging
  • Vascular pulse wave imaging
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