ARRT registry review covering Image Acquisition and Evaluation
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| show | Recorded detail and distortion. Pg. 296.
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| What are the photographic factors for radiology? | show 🗑
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| show | Line pairs per millimeter (lp/mm). Pg. 296.
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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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| Is the effective focal spot smaller or larger than the actual focal spot? | show 🗑
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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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| show | They have a greater speed. Pg. 311.
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| show | Screen speed and phosphor size are directly related. The bigger the phosphor the faster the screen speed. Pg. 312.
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| show | As screen speed increases, recorded detail decreases. Pg. 312
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| show | The density doubles as well. Pg. 319.
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| show | The mAs would have to change at least 30%. Pg. 319.
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| show | The mAs is directly proportional to the distance squared. Pg. 320.
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| If twice the original density is needed, what percentage should kV be increased? | show 🗑
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| show | Collimation. Pg. 325.
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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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| What grid ratio is recommended for radiography up to 90kV? | show 🗑
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| A 10 inch air-gap produces the same effect as what type of grid? | show 🗑
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| show | 0.5 mm Al equivalent. Pg. 332.
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| The collimator box accounts for how much filtration of the primary beam? | show 🗑
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| show | Emphysema, degenerative arthritis, and osteoporosis. Pg. 335.
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| Give three examples of additive pathologies that technique may need to be increased. | show 🗑
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| show | Cut the mAs in half. Pg. 338.
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| show | Optical density increases. Pg. 341.
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| show | To make image details visible. Pg. 342.
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| show | There is a larger margin for error. Pg. 345.
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