| Question 1: Of the following, choose the TM material with a sound speed most closely matching soft tissue (1540 m/s) at room temperature:
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| Reference: | The Phantoms of Medical and Health Physics: Devices for Research and Development.” Larry A. Dewerd and Michael Kissick. Springer. 2014. pp. 162-165 |
| Choice A: | Water. |
| Choice B: | Urethane rubber. |
| Choice C: | Ethanol. |
| Choice D: | Water and 7.4% Ethanol. |
| Question 2: MRI phantoms are generally fluid-filled objects with a solid shell. Of the following parameters which is most important to match at fluid/phantom junctions to avoid artifacts:
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| Reference: | The Phantoms of Medical and Health Physics: Devices for Research and Development.” Larry A. Dewerd and Michael Kissick. Springer. 2014. p. 182
|
| Choice A: | Magnetic Susceptibility. |
| Choice B: | T1. |
| Choice C: | T2. |
| Choice D: | All of the above. |
| Choice E: | None of the above. |
| Question 3: The standard breast phantom used in mammography QA and QC is supposed to represent breast tissue that is 50% glandular and 50% adipose. However, it has been shown that the breast tissue of most women is:
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| Reference: | The Phantoms of Medical and Health Physics: Devices for Research and Development.” Larry A. Dewerd and Michael Kissick. Springer. 2014. p. 153 |
| Choice A: | More than 50% glandular tissue. |
| Choice B: | Less than 50% glandular tissue. |
| Choice C: | None of the above. |
| Choice D: | All of the above. |
| Question 4: Assuming a soft tissue density of 1.0 g/cm3 and a PMMA density of 1.19 g/cm3, the 32 cm PMMA CTDI phantom used in CT imaging corresponds to a waist size:
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| Reference: | “The Essential Physics of Medical imaging, Third Edition.” Bushberg et al. Lippincott, Williams, and Wilkins. 2012. p. 390 |
| Choice A: | Equal to the average adult in the United States. |
| Choice B: | Approximately 25% greater than the average adult in the United States. |
| Choice C: | Approximately 25% smaller than the average adult in the United States. |
| Choice D: | None of the above. |
| Question 5: Line pair patterns commonly found in phantoms used in all X-ray imaging modalities are an indirect measure of an imaging system’s:
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| Reference: | The Essential Physics of Medical imaging, Third Edition.” Bushberg et al. Lippincott, Williams, and Wilkins. 2012. p.76 |
| Choice A: | Modulation Transfer Function. |
| Choice B: | Noise Power Spectrum. |
| Choice C: | Slice Sensitivity Profile. |
| Choice D: | Temporal Resolution. |
| Question 6: An example of a vendor specific QA phantom for digital radiography is:
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| Reference: | The Phantoms of Medical and Health Physics: Devices for Research and Development.” Larry A. Dewerd and Michael Kissick. Springer. 2014. p. 116
|
| Choice A: | ANSI Chest X-Ray phantom. |
| Choice B: | Leeds Test Objects. |
| Choice C: | ACR Accreditation R/F QA Phantom. |
| Choice D: | Agfa Halfnium phantom. |
