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17 Cards in this Set
- Front
- Back
- 3rd side (hint)
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THE type of computer memory that allows for temporary storage for programs and data is called
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ROM
RAM RAD REM |
RAM
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A HIGH pass image filter removes
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- relatively lower frequencies
- relatively higher frequencies - frequencies that are both low and high |
relatively lower frequencies
A high pass filter allows higher frequencies to pass through and reduces lower frequencies data from the resulting image. This can produce a nosier image with better edge definition. |
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Film question
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#3 and page 45
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Output devices in nuclear medicine include
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CRT's
video monitors magnetic tape = storage device all of the above a and b only |
magnetic tape
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Film question #5
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page 45
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Which part of the computer is used for data filtering?
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buffer = temporary storage area
array processor = is used to perform filtering at high speeds ROM read only memory ADC analog to digital converter |
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Which is most useful for gated first pass cardiac studies?
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-list modes = stores data in time sequences
- frame mode = requires less memory and has a higher acquistion rate than list mode....... but the data may not be divided into different images at a later time. |
list mode
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Question 9
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film question page.....46
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Which type of filter is used for exclusively with dynamic images?
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spaital = used for static images
temporal = used for dynamic band pass = removes both high and low frequencies low pass = reduces high frequencies |
temporal
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Which type of filter is used for exclusively with dynamic images?
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spaital = used for static images
temporal = used for dynamic band pass = removes both high and low frequencies low pass = reduces high frequencies |
temporal
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Question 7 and 9
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page 46
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Filtered back projection os SPECT data initally creates
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transaxial images
sagittal images coonal images oblique images |
transaxial images
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Question 11- 14
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page 47
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Filtering SPECT may take place
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before reconstruction
during reconstruction after reconstruction all of the above |
all of the above
Filters may be applied before, during or after processing reconstruction. The filter that is most often used during reconstruction with filtered back projection is the modified ramp filter, also called the Butterworth filter. |
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Question 17 film
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page 48
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When processing a bone scan for a doctor for interpretation, the tech should be certain that which of the following are noted on the film pr patient request paper ?
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right and left sides
injection site age fracture history all of the above |
all of the above
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Film should be stored:
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-on its side
- after the foil wrapper has been removed - in a temperature controlled area - a and c only |
-on its side
- in a temperature controlled area |
