RAD-285 IMAGE CAPTURE
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what is hard copy output
conversion of digital image to analog
what does digital imaging use to convert radiation that passes through the patient directly to a digital image
- Percentage of
- detector area that is active
Signal without radiation
- Pixel response and
- readout, receptor response, tiling
what is a soft copy
sent as a file on a disk
what is a mask image
- is simply a positive image of
- the same area prior to contrast administration.
- is the procedure to visualize blood
- vessels with contrast medium in a bony environment by subtracting the
- pre-contrast image (the
- mask) from the image with contrast medium.
what is the purpose of digital subtraction of angiographic images
- is to demonstrate the vessels free of
- superimposed, disturbing image noise.
how can DSA be performed
thru an artery (intra-arterial)or thru a vein(intravenous) via a catheter insertion
how many fps is pulsed fluoro (serial imaging) and continuous fluoro (dynamic scan)
DSA is a ____ resolution procedure
what focal spot does it use
what is electric noise
- subtracted out from raw image, but contributes to total system noise
spatial resolution is related to _____
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