Term
| Relative Sensitivity (S#) test |
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Definition
| used to confirm that CR reader system sensitivity calibration is consistent with the baseline test. Can provide info on xray generator output and consistency. |
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Term
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Definition
| Evaluates the uniformity of the image optical density across the scanning width. Confirms Cr reader systems light guide position and optics. |
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Term
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Definition
| measures the contrast resolution capability of the image processor, workstation monitors, and hard-copy printers. |
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Term
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Definition
| Measures the spatial resolution capability of the CR reader optics, xray tube, and hard-cpoy printer. |
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Term
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Definition
| Evalutes the horizontal and vertical performance of the laser optics and transport systems of the CR reader and hard-copy printer. |
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Term
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Definition
| Evaluates the image for noise or artifacts, as well as monitor degrading. |
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Term
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Definition
| Used to conform that the CR reader system has completely erased the previous image. |
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Term
| Accuracy of Measurement Tools |
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Definition
| Ensures the accuracy of workstation measurement tools and hard-copy printer software. |
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Term
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Definition
| Measures CR reader system linearity. |
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Term
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Definition
| Clear block,measures consistent exposure with varying KV,MA,field sizes,Part thickness and consistency of detectors & reproducibility. |
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Term
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Definition
| Measures film/screen contact |
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Term
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Definition
| Ensures centering of xrayfield & grid and proper distance (p122) |
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Term
| Fluoro Beam Alignment Device |
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Definition
| Ensures primary beam is aligned to center of II.(p134) |
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Term
| Fluoro High Contrast Resolution Test Tool |
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Definition
| Ensures small areas are resolved, measures spatial resolution.(p.139) |
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Term
| Fluoro Low Contrast Resolution Test Tool |
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Definition
| Ensures larger areas are resolved.(p.139) |
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Term
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Definition
| inspects intensifying screens (p.121) |
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Term
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Definition
| Measures spatial frequency.(p.119) |
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Term
| Input phosphor is composed of... |
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Definition
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Term
| What affects brightness in fluoro? |
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Definition
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Term
| If an error occurs, fluoro MAS will terminate at what? |
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Definition
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Term
| Influences of repeat rates: |
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Definition
| Competence of tech, patient population, number of images taken. |
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Term
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Definition
| warpinf of image along axis & is caused by strong magnetic field. |
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Term
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Definition
| Light reflected from the window of the output phosphor & it lowers contrast. |
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Term
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Definition
| Decreased image brightness at lateral edges of image. |
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Term
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Definition
| caused by projecting a curved surface onto a flat surface. |
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Term
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Definition
| emitting e-'s from a material after exposure to light or other ionizing radiation. |
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Term
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Definition
| DR is faster (auto image) |
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Term
| In film/screen system, cassettes should be tested... |
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Definition
| Yearly with a wire mesh tool |
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Term
| What is the exposure on CR plates that have been exposed? |
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Definition
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Term
| Accessory performance depends on what/ |
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Definition
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Term
| What type of data does repeate analysis provide? |
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Definition
| Type of exam, departmental procedures, equipment |
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Term
| What are advantages of having repeate analysis? |
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Definition
| reduced repeat rates&cost&pt dose, increased department efficiency. |
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Term
| Total repeat rates are influenced by what factors? |
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Definition
| Quality of equipment, competency of staff, pt population, # of images. |
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