BASICS
HARDWARE
CAMERA MISC.
IMAGE MISC.
FILTERS ETC.
100
How many bits equal a byte?
What is 8 bits=1 byte
100
What is known as the brain of the computer?
What is the CPU
100
X and Y signals represent what?
What is the location of the gamma ray interaction with the detector
100
T/F-The highest pixel count is assigned the brightest intensity
What is true
100
This type of gated study filtration sets a +/-10% window around the peak heart rate and records only those counts that fall within that window.
What is beat filtration
200
What is the maximum counts that can be stored in a byte?
What is 256
200
What are the two types of memory?
What is ROM and RAM
200
What signal measures the energy?
What is Z signal
200
What is pixel rollover?
What is when counts exceed the pixel limit
200
A high pass filter removes low or high frequencies?
What is removes the low freq.
300
How many bytes equal a word?
What is 2
300
Which type of memory is permanent?
What is ROM (read only memory)
300
What is the name of the device the digitizes these 3 signals?
What is ADC
300
What matrix size is best for SPECT imaging?
What is 128x128
300
The _________ the cutoff freqency, the smoother the image. Lower or Higher?
What is Lower
400
A word can store up to how many counts?
What is 65,536
400
What type of processor adds speed to processing, allowing reconstruction to be less then 1 sec per slice?
What is array processor
400
Name 2 of the 3 types of software?
What is systems software, programming software, and user programs
400
T/F- Increasing zoom=increase resolution=decrease counts per pixel=noisier image
What is true
400
If you increase the order #, does it result in a noisier or smoother image?
What is noisier
500
This type of system uses the characters 0 and 1.
What is binary system
500
Name 3 things that can be used to create regions of interests?
What is a mouse, joystick, and light pen.
500
Name 1 type of programming language?
What is Interpreted, Compiled, Basic, Fortran, Cobol, Pascal, and C C+ C++
500
Increasing the matrix size does what to resolution?
What is increases
500
Which filter describes a 3x3 matrix centered on a center pixel?
What is 9 point smooth
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