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What are the parts of the instrument?
What is beam former, signal processor, image processor and display?
Filtering, detection and compression are all comments of the signal processor? Ch.4 Pg 11 powerpoint notes
____ is an image processing performed on image data retrieved from the memory?
What is Post-processing?
What does PACS stand for?
What is Picture archiving and communication systems?
What type of imaging produces an image with a wider field of view than what is available on an individual frame from a transducer?
What is Panoramic imaging?
___ produces electrical voltage that drives the transducer forming the beam?
What is the pulser?
The amplifier is apart of the?
What is beam former?
Image display is presented in what three types of modes?
What is A, B and M mode?
What are the modern sonography system typically consist of?
What is 64, 128 , 194?
___ uses only the digits 0 and 1.
What are binary numbers?
If the PRF decreases, penetration ____?
What is increases?
___ is an independent signal path consisting of a transducer element, delay and possibly other electronic components?
What are channels?
What type of resolution has the ability of a gray scale display to distinguish between echoes of slightly difference intensities?
Clue; it also depends on the # of bits per pixel.
What is Contrast resolution?
What type of resolution does this equation;pen * n * LPF * FR < 77,000 cm/s refer to?
What is temporal resolution?
A 8 bit memory will produce how many shades of gray?
What is 256?
Pg. 21, Ch.4 power point notes
What would be the maximum depth for a PRF of 15kHz?
What is 5.13cm?
What component of the beam former is responsible for driving voltage from the pulser and delay to the transducer and directs the returning echoes from the transducer to the amplifiers?
What is Transmit/Receive Switch?
____ is image processing done as echo data are stored in memory?
What is pre-processing?
Pg. 16 Ch.4 power point notes
From the ADC's, the digitized echo voltages pass through what parts of the beam former?
What is echo delays and summer?
True or False: If penetration increases, PRF must decrease?
What is true?
Pg. 25 Ch.4, power point notes
What must be reduced to avoid echo misplacement?
What is PRF?
What type of magnification occurs after image stored? What type of magnification occurs before storage in the scan converter?
What is read magnification, what is write magnification?
__ is set subjectively so that echoes appear with appropriate brightness.
What is Gain?
What persistence reduce and improve?
What is speckle and dynamic range?
The listening time is determined by what?
What is the maximum depth from which echoes return?
Pg 5, Ch.4 power point notes