Equipment Operation, QA, and Image Acquisition and Evaluation
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| _____ determines the fixed spatial resolution characteristic of direct digital systems. | show 🗑
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| show | Kilovoltage & Photon energy pg. 167
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| show | A series of variable instructions pg. 167
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| 3 components of a detector element (DEL) are | show 🗑
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| show | OID pg. 168
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| If a 12:1 grid ratio exhibits loss of signal at its lateral edges, it's because | show 🗑
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| show | Photon wavelength pg. 170
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| show | Decrease in photon energy & receptor exposure pg. 171
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| show | Reduce patient skin dose pg. 171
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| show | Osteoporosis pg. 167
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| show | Field size pg. 172
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| Which has the greatest affect on radiographic IR exposure? Aluminum filtration kV SID Scattered radiation | show 🗑
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| show | Differential tissue absorption & atomic number of tissue being traversed pg. 172
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| show | OID and patient/part motion pg. 172
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| What are special considerations/conditions that require an increase from the typical technique factors? Excessive BMI Skeletal sclerosis Osteomalacia | show 🗑
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| show | Pixel pitch pg. 173
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| show | Volume element & measure in Z direction pg. 173
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| show | A larger matrix pg. 173
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| show | spatial resolution increases, image quality increases, and pixel size decreases pg. 175
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| show | Image detail sharpness is directly related to SID pg. 175
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| show | DEL size decreases & fill factor increases pg. 175
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| What is not true about digital imaging? Window level adjustments are associated with image brightness Brightness is related to IR exposure Image visibility is a function of IR exposure Brightness and density are not interchangeable terms | show 🗑
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| show | Photon energy and penetration pg. 175
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| What are factors impacting spatial resolution? Focal spot size Subject motion SOD | show 🗑
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| show | 0.40 mm/pixel pg. 176
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| What enables the radiographer to reduce the exposure time required for a particular image? Use of a higher mA Use of a higher kV Use of a higher ratio grid | show 🗑
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| What statement is incorrect regarding kilovoltage? Increased kV increases beam intensity Receptor exposure can be doubled or 1/2 by using the 15% rule Increased kV can decrease absorbed dose kV and wavelength are directly proportional | show 🗑
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| show | Brighter, Inverted, & Minified pg. 217
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| show | Low-light level is desirable & Too much light causes images to appear dark pg. 217
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| show | Output screen image is magnified, mA increases, output screen image has improved resolution pg. 217
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| show | Is a computer software operation, removes densities that veil image details, and compresses the contrast scale pg. 217
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| Unsharp edges of tiny radiographic details is called what? | show 🗑
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| show | Semiannually pg. 218
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| What will improve the spatial resolution of image-intensified images? | show 🗑
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| What's the total number of x-ray photons produced at the target depend on? | show 🗑
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| Kilovoltage and HVL relationship | show 🗑
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| show | Contrast scale decreases pg. 219
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| What is a circuit device that only allows flow in one direction called? | show 🗑
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| What is scintillation not associated with? | show 🗑
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| show | Bremsstrahlung radiation pg. 220
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| The amount of electric charge flowing per second is called what? | show 🗑
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| Device the directs the light emitted from the image intensifier to different views and imaging apparatus? | show 🗑
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| What contributes to inherent filtration? | show 🗑
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| show | Signal differences within the remnant beam pg. 221
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| show | Flux gain & minification gain pg. 222
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| As ______ decreases, spatial resolution in compound radiography increases. | show 🗑
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| What material is appropriate for IP front material | show 🗑
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| What is the image intensifiers input phosphor made of? | show 🗑
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| What can grid interspace be made of? | show 🗑
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| Changing the size of the actual focal spot will change what? | show 🗑
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| show | Preprocessing pg. 226
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| Reference: Saia, D.A. (2022). Image Production: Image Acquisition and Technical Evaluation. In S. Barnes, C. M. Thomas (Eds.), Lange Q & A: Radiography Examination (12th ed., pp. 167-211).Chicago, IL: McGraw-Hill Education. | show 🗑
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| Reference: Saia, D.A. (2022). Image Production: Equipment Operation and Quality Assurance. In S. Barnes, C. M. Thomas (Eds.), Lange Q & A: Radiography Examination (12th ed., pp. 217-250).Chicago, IL: McGraw-Hill Education. | show 🗑
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