Term
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Definition
| how small an objet can be imaged |
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Term
Pixel
-definition and calculation |
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Definition
-picture element
-field of view / matrix |
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Term
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Definition
-number of pixels in the XY direction
-matrix increase = pixel size is smaller = incease resolution |
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Term
| Signal to Noise Ratio (SNR) |
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Definition
how much signal has been corrupted by noise
-increase mAs = increase SNR = increase contrast resolution
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Term
Detective Quantum Efficiency (DQE)
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Definition
how effectively an x-ray image system can produce an image with high SNR relative to an ideal detector
-expressed as spatial frequency |
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Term
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Definition
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Term
Computed Radiology (CR)
Image Plate and Imaging Receptor |
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Definition
IP-contains the image receptor
IR- contains the PSP |
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