Ultrasound Imaging Engine (PCI Based) made Available

"Do It Yourself" (DIY)

Build your own  Inexpensive Ultrasound Imaging System

Using your own PC Desktop Computer

Linscan Ultrasound offers the following:

• 301 P/R, Pulser-Receiver Module
• 301 DAQ, Vector Acquisition Digitizer PCI Board
• 301 KP, Optional Keypad to simplify imaging control
• 301 SP, Image Display Software (Open Source C++ Code)

A Compact Pulser-Receiver, LVDT Demodulator,
and Motor Driver Module 301-DAQ

The Linscan 301-DAQ Module is built into a 3.5" Floppy Drive housing that can be installed easily into most any PC Desktop Computer.  The Module includes the following features

• Low Noise (20 uvolt rms equivalent noise) protected input circuitry accommodates over 85 dB of input range
  
• Highly shielded/noise suppressed design provides immunity to external PCBus) noise10 sec, 400 volt pulser
  
• Internal adjustments (video and position) can be with remote adjustments
  
• Demodulator for Standard LVDT position sensor
  
• Designed to meet UL requirements
  
• Modular design permits easy reconfiguration of circuit to meet individual requirements
  
• Engineering support exists to speed development and reduce the learning curve
  

The Linscan 301 P/R was developed to be a flexible companion input device for the PCI-Based DAQ platform.  With minimal engineering effort, this design can be adapted to accommodate most any ultrasound probe requirements.

The Linscan engineering staff can assist with the process of adapting the design to meet your specifications.  Let us solve your ultrasound image acquisition design problems today!

  A PCI-Bus Based Ultrasound Data Acquisition Board

( 301-DAQ )

The 301-DAQ is a stable, flexible platform that can, with minimal engineering effort, be adapted to accommodate most any ultrasound imaging function. The 301-DAQ includes the following features:

• Input Vector Data is digitized with 8-bit, 30 MB/sec A/D (256 levels).
  
• Analog Position data is digitized with 10-bit A/D (giving true position and direction data for 256 vectors).
  
• Standard on-board memory of 2 Mbytes can be increased up to 64 Mbytes
  
• Design is all ready in commercial use in Linscan’s Intrascan® WS-300.
  
• On-Board 400 volt power supply provides excitation for the 301 P/R Module.
  

Much of the design is implemented with reconfigurable logic, allowing for simple debugging, upgrading, and revisions – most of which do not require changes to the hardware.  Open Design allows for easy modifications:

• Field-programmable architecture allows firmware to be upgraded easily.
  
• Optional Input Vector A/D available for higher resolution and/or bipolar (vs unipolar) echo acquisition. 
  
• Optional Position A/D available for higher resolution and increased radial resolution.
  
• DSP functions can be incorporated for on-board image processing.
  
• On-board image memory can be increased up to 64 MBytes.
  
• On-board Microcontroller board simplifies the addition of new functions.
  
• Generous general-purpose digital i/o pins simplify system control functions.
  
• PCI and memory controller functions are performed in the software reconfigurable FPGA.
  
• Modular design permits easy reconfiguration of circuit to meet individual requirements.
  
• Engineering support exists to speed development and reduce the learning curve.
   

Operation of the WS-301 Imaging System Keypad is automated by the internal computer software.
After the PC has loaded the appropriate imaging software, the last-used User Settings are installed, ready for use.
Simply plug in a probe and press the [SCAN/FREEZE] Key.

• The imaging screen shows a 50 degree, pie-shaped area at the center where the image data is displayed.
  
• The information shown on the left gives the current image values.
  
• The top line indicates the current display MODE.
  
• MODE: indicates the function of the arrow keys (Image File Name, CONTrast/COLoR, GAIN/FAR gain, MOVE/ZOOM, WINDow/ConTRoL, and IMAGe/BRoWSe).
  
• MODE: XXXXXXXXX indicates that a stored image file is being displayed.
  
• The next lines indicate the ultrasound imaging parameters for the current probe.
  
• The bottom line indicates the status of the probe and is toggled by the [SCAN/FREEZE] key.
  
• Information on the right shows the date/time and optional hospital name, patient ID, and the anatomy and scan views. This data can be turned on or off from the Menu
  
• The [HELP] Key is available for assistance and information when questions arise about the application, selection of a probe, or definition of specific terms used on the menu screens.
• The File Directory used to save the ultrasound image data may be changed from the default setting.
  
• To choose another Directory, use the selection on the Menu Bar.

Sector Probes - with a 50 degree, pie-shaped image - are available with the following frequencies for imaging at various depths and resolutions.  Each is coded with a colored orientation ball and connector.