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Exam (elaborations)

RAD 146- Intro- Unit 3- Computed Radiography (4) exam with correct answers

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RAD 146- Intro- Unit 3- Computed Radiography (4) exam with correct answers

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RADT 146
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RADT 146









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Institution
RADT 146
Course
RADT 146

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Uploaded on
January 25, 2025
Number of pages
13
Written in
2024/2025
Type
Exam (elaborations)
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Computed radiography is the generic term applied to an ______ _____ -
// // // // // // // // // // //



correct answer ✔imaging system
// // // //




Computed radiography is comprised of: - correct answer ✔1.
// // // // // // // //


Photostimulable Storage Phosphor (PSP)
// // // //




2. CR Reader
// //




2. Digital Electronics
// //




1. Photostimulable Storage Phosphor (PSP) - correct answer ✔to acquire the
// // // // // // // // // //


x ray projection image
// // // //




2. CR Reader - correct answer ✔to extract the electronic latent image
// // // // // // // // // // //




3. Digital electronics - correct answer ✔to convert the signals to digital form
// // // // // // // // // // // //




Is there still a cassette involved with CR? - correct answer ✔yes. instead of
// // // // // // // // // // // // //


a film or IS screen, we have the PSP which is within the cassette
// // // // // // // // // // // // // //




Screen film imaging vs Computed Radiography (CR), what they have in
// // // // // // // // // //



common - correct answer ✔1. both use an x ray sensitive image receptor
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- both incased in a protective cassette
// // // // // //

, 2. both can be used interchangeably with any x ray imaging system
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3. both carry a latent image that must be made visible by processing
// // // // // // // // // // // //




How do screen film imaging and computed radiography differ? - correct
// // // // // // // // // //



answer ✔1. screen film: image manifested through chemical processing
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2. CR: analog image converted into digital signal
// // // // // // //




Screen film - correct answer ✔patient- intensifying screen (emits light)- film
// // // // // // // // // //


(latent image)- chemical processing- manifest image
// // // // // //




History of computed radiography- commercially introduced in - correct
// // // // // // // //



answer ✔1983
// //




Over ____ systems in clinical use worldwide ___ countries - correct answer
// // // // // // // // // // //



✔10,000, 44
// //




CR technology is based on certain ____ ____ ____ materials having an ___
// // // // // // // // // // // //



____ and ____ property known as _____ _____ - correct answer ✔halide
// // // // // // // // // // // //


based phosphor, energy storage, excitation, photostimulable luminance
// // // // // // //


(PSL)
//




First hospital to get a computerized system was in which county - correct
// // // // // // // // // // // //



answer ✔riverside
// //




Materials having an energy storage and excitation property is known as -
// // // // // // // // // // //



correct answer ✔photostimulable luminance (PSL)
// // // // //

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