Telemed USB ultrasound systems

Supported hardware devices

• This device is used for image acquisition from Telemed ultrasound systems.
• Tested only with MicrUs devices (http://www.pcultrasound.com/products/micrus/index.html) but other Telemed devices should be compatible, too.
• Link to manufacturer's website: http://www.pcultrasound.com

Supported platforms

• Windows 32 bits
• Windows 64 bits

Installation

• Requires drivers provided by Telemed for running (otherwise Plus application will not start).
• It is recommended to run the Telemed imaging software to set all imaging parameters, as Plus currently can set only a subset of all imaging parameters.

Device configuration settings

• 
  Type = "TelemedVideo"
  
• 
  AcquisitionRate
  

  Default = "30"
• 
  LocalTimeOffsetSec
  

  Default = "0"
• 
  FrameSize Maximum size of an image frame in pixels. The image is scaled so that image vertically fills the specified rectangle size, therefore if the frame size is too narrow (first component is too small) then the two sides of the image may be clipped; if the frame is too wide then there will be solid filled stripes on the left and right sides. If larger values are specified then a higher-resolution image is created.
  

  Default = "512 512"
• 
  DepthMm Set the depth [mm] of B-mode ultrasound. If not specified (or value is <0) then the current value is kept.
  

  Default = " "
• 
  FrequencyMhz ultrasound transmitter frequency. If not specified (or value is <0) then the current value is kept. [MHz].
  

  Default = "-1"
• 
  DynRangeDb Dynamic Range [dB] of B-mode ultrasound. If not specified (or value is <0) then the current value is kept.
  

  Default = " "
• 
  GainPercent Is the gain percentage of B-mode ultrasound. If not specified (or value is <0) then the current value is kept. Valid range: 0-100.
  

  Default = " "
• 
  PowerDb Power to be used for imaging, as a number of Db below maximum. If not specified (or value is >0) then the current value is kept. Valid range is -20 to 0.
  

  Default = " "
• 
  FocusDepthPercent Depth of the focus point in the ultrasound frame, normalized to [0, 100]. Valid range is 0 to 100.
  

  Default = "50"
• 
  DataSources Exactly one DataSource child element is required
  
  • 
    DataSource
    
    • 
      PortUsImageOrientation
      
    • 
      BufferSize
      

      Default = "150"
    • 
      AveragedItemsForFiltering
      

      Default = "20"
    • 
      ClipRectangleOrigin
      

      Default = "0 0 0"
    • 
      ClipRectangleSize
      

      Default = "0 0 0"

Example configuration file PlusDeviceSet_Server_TelemedVideoCapture.xml

 <PlusConfiguration version="2.1">

  <DataCollection StartupDelaySec="1.0" >
    <DeviceSet
      Name="PlusServer: Telemed ultrasound device"
      Description="Broadcasting acquired video through OpenIGTLink"
    />
    <Device
      Id="VideoDevice"
      Type="TelemedVideo" >
      <DataSources>
        <DataSource Type="Video" Id="Video" PortUsImageOrientation="UN"  />
      </DataSources>
      <OutputChannels>
        <OutputChannel Id="VideoStream" VideoDataSourceId="Video" />
      </OutputChannels>
    </Device>
    <Device
      Id="CaptureDevice"
      Type="VirtualCapture"
      BaseFilename="RecordingTest.igs.mha"
      EnableCapturingOnStart="FALSE" >
      <InputChannels>
        <InputChannel Id="VideoStream" />
      </InputChannels>
    </Device>
  </DataCollection>

  <CoordinateDefinitions>
    <Transform From="Image" To="Reference"
      Matrix="
        0.2 0.0 0.0 0.0
        0.0 0.2 0.0 0.0
        0.0 0.0 0.2 0.0
        0 0 0 1" />
  </CoordinateDefinitions>

  <PlusOpenIGTLinkServer
    MaxNumberOfIgtlMessagesToSend="1"
    MaxTimeSpentWithProcessingMs="50"
    ListeningPort="18944"
    SendValidTransformsOnly="true"
    OutputChannelId="VideoStream" >
    <DefaultClientInfo>
      <MessageTypes>
        <Message Type="IMAGE" />
      </MessageTypes>
      <ImageNames>
        <Image Name="Image" EmbeddedTransformToFrame="Reference" />
      </ImageNames>
    </DefaultClientInfo>
  </PlusOpenIGTLinkServer>

</PlusConfiguration>