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Week 12 image produ

FINAL REVIEW

QuestionAnswer
Each CT projection is Stored on the computer.
The concentration of scintillation detectors affects the Spatial resolution.
Filtered back projection in CT refers to Image reconstruction.
The new development in the fourth-generation CT scanner is the Stationary detector assembly
The time from the end of CT imaging to image appearance is called the Reconstruction time
The principal drawback of the first-generation CT scanner was the Long scanning time
The reduction in scanning time was the principal advantage of second-generation CT scanners.
What is the principal disadvantage of third-generation CT scanners? heat units
CT scanners operate on ________________ voltage generation. High-frequency
The first generation of computed tomography used ______ detector(s). One detector.
The pixel size is reduced when the _______ size is increased and the _____________ size is fixed. Matrix; field of view (FOV).
The ____________ in the image intensifier emits electrons when it is stimulated by light photons. Photocathode.
Fluoroscopy was developed so that radiologists could view ______________ images. Dynamic images.
The ratio of x-rays incident on the input phosphor to light photons exiting the output phosphor is called _______ gain. Flux gain.
zViewing the fluoroscopic image in magnification mode increases contrast resolution, spatial resolution, and patient dose
Created by: edwingp
 

 



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