Unit 6

• what are the components of principle 2

  beam former

  signal processor

  image former

  display
• what does the image former now perform that the beam former use to


  directing

  focusing

  and anodizing the reception beam
• what is the image former 


  massive, high speed, parallel processing sorts out the echoes, and places them in the image memory
• how is virtual beam forming accomplished 


  by massive, computational post processing that utilizes graphics processing units (GPUs)
• what type of virtual beam forming can be imagined in transmission or reception forms


  retrospective
• an imaginary laser

  thin transmitted ultrasound that can be thought of as producing the excellent detail resolution throughout the image is what 


  virtual transmission beam
• an imaginary reception beam that can be thought of as determining the echo produced at each pixel location in the image

  virtual reception beam
• what does principle 2 improve 


  improves detail

  contrast and temporal resolution

  sensitivity and penetration