ARRT registry review covering Image Acquisition and Evaluation
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| What are the radiographic geometric factors? | show 🗑
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| show | Density and contrast. Pg. 316.
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| Spatial resolution is measured in what? | show 🗑
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| show | Unsharpness increases as focal spot size increases. Pg. 303.
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| Is there more unsharpness at the cathode or anode end of the tube? | show 🗑
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| show | The effective focal spot will always be smaller than the actual focal spot per the line focus principle. Pg. 307.
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| What is the best method of minimizing voluntary motion? | show 🗑
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| show | Thomas Edison in 1896. Pg. 308.
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| Do phosphors with a high atomic number have a slower or greater speed? | show 🗑
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| If phosphor size increases, does screen speed increase? | show 🗑
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| Is there better recorded detail with a faster or slower screen speed? | show 🗑
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| If the mAs is doubled, what happens to the density? | show 🗑
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| show | The mAs would have to change at least 30%. Pg. 319.
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| Is mAs directly/indirectly proportional to the distance squared? | show 🗑
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| If twice the original density is needed, what percentage should kV be increased? | show 🗑
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| What is the single most important way to reduce scatter radiation? | show 🗑
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| show | For body parts measuring 10 cm or greater. Pg. 325.
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| If no grid is used on a large body part, what percentage of scatter radiation contributes to the total IR exposure? | show 🗑
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| show | Grid ratio is the height of the lead strips compared with the distance between them. Pg. 328.
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| show | Grid frequency is the number of lead strips per inch. Pg. 329.
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| show | 8:1 Grid. Pg. 330.
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| show | A 16:1 grid. Pg. 331.
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| The glass tubes accounts for how much filtration of the primary beam? | show 🗑
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| show | 1.0 mm Al equivalent. Pg. 332.
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| show | Emphysema, degenerative arthritis, and osteoporosis. Pg. 335.
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| show | Ascites, pneumonia, and atelectasis. Pg. 335.
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| show | Cut the mAs in half. Pg. 338.
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| Does optical density increase/decrease as developer temperature increases? | show 🗑
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| What is the function of contrast scale? | show 🗑
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| Is there a larger or smaller margin of error when selecting higher kV? | show 🗑
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