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RAD 107 Final

QuestionAnswer
1. Each pixel of information in the CT image contains numerical information in ___________ units. Hounsfield
2. The pixel size is reduced when the _______ size is increased and the _____________ size is fixed. Matrix; Field of view
3. The relationship between patient couch movement and the x-ray beam is known as ______________. Pitch
4. Reconstruction of any image at any z-axis projection is possible because of a mathematical process known as ______________. interpolation
5. The x-ray source and the detector move ______________ for computed tomography. synchronously
6. The time from the end of imaging to appearance of the image is known as ______________. Reconstruction time
7. A CT image is a ___________ or __________ image that is perpendicular to the long axis of the body. Transaxial; Transverse
8. The size and construction of the _____________ determines the anode heat capacity. Anode Disk
9. Serial radiography requires x-ray equipment with a _________________. High power rating
10. The use of ______________ reduces the risk of a drug reaction during angiographic procedures. Nonionic contrast
11. The most common risk for the angiography patient is ________________. bleeding at the puncture site
12. DMIST showed that contrast resolution is more important than spatial resolution for diagnostic efficacy. True
13. The output phosphor of the image intensifier is composed of ___________________. zinc cadmium sulfide
14. The _______ in the retina are stimulated by _______ light; the _______ are stimulated by _______ light. rods; low; cones; bright
15. The kinetic energy of photoelectrons in the image intensifier is greatly increased by the _____________________. potential difference across the tube
Created by: bailey.holden13
 

 



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