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Digital Imaging A Quiz

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1. an option of post processing to improve the film




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2. smallest exposure change (signal) difference that can be captured by a detector controlled by the dynamic range of the detector and quantization




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3. an extensive networked group of computers, services and archives the image




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4. the process of acquiring images of the body using x-rays displaying them digitally, viewing and storing them on a computer complete file




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5. determines the gray scale rendition of that tissue & therefore the image contrast




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6. one of the two types of digital imaging systems that is cassette based, the body part is obtained using storage phosphor in the cassette




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7. image comprised of continuous shades of gray from black to white




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8. the further adjusting of any image of a body part with the use of computer software




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9. measure of x-ray absorption efficiency; variation in detectors which predicts their efficiency; absorption coefficient;




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10. relates the number of line pairs in a given length as cm or mm (lp/mm); data is sampled from an exposed detector in computed radiography/detector element-size (del)




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11. Direct conversion




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12. Digital radiography (DR)




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13. Indirect conversion




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14. Spatial resolution (digital) –




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15. Scintillator




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16. Digital




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17. Photostimulable phosphor




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18. Dynamic range (digital receptors)




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19. Image size (digital)




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20. Window level





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