CPD Questions (2D Echo Knobology: Frequency, Focus & Frame Rate)

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1. Increasing transducer frequency primarily improves which of the following?:: A. Temporal resolutionB. Spatial resolutionC. Contrast resolutionD. Sector resolutionE. Frame rate resolution
2. What is the primary trade-off when increasing the transducer frequency to improve spatial resolution?:: A. Decreased frame rateB. Reduced penetration of the ultrasound beamC. Increased beam widthD. Loss of lateral focusE. Increased side-lobe artifacts
3. Lateral resolution is at its best at the level of the focus. Which of the following determines the width of the ultrasound beam at that point?:: A. The depth of the imaging sectorB. The pulse repetition frequency (PRF)C. The beam diameter and the focusing of the transducerD. The dynamic range settingsE. The persistence level
4. Besides decreasing imaging depth, which other adjustment will most improve frame rate?:: A. Narrowing sector widthB. Using multiple focal zonesC. Increasing dynamic rangeD. Increasing transducer frequencyE. Turn off harmonic imaging
5. What is the main difference between write zoom and read zoom?:: A. Read zoom increases the number of pixels; write zoom does not.B. Write zoom is performed on a frozen image; read zoom is performed in real-time.C. Write zoom improves spatial resolution and can increase frame rate; read zoom only magnifies existing pixels.D. Read zoom improves temporal resolution; write zoom improves axial resolution only.E. There is no functional difference between the two.
6. What is the main advantage of write zoom compared with read zoom?:: A. Improved spatial resolution onlyB. Increased frame rate onlyC. Increased frame rate and improved spatial resolutionD. Improved contrast and spatial resolutionE. Reduced attenuation, increased frame rate and improved spatial resolution
7. Harmonic imaging improves image quality mainly by enhancing::: A. Axial resolution onlyB. Lateral resolution onlyC. Lateral and axial resolutionD. Lateral and contrast resolutionE. Axial resolution and contrast resolution
8. In 2D imaging, what is the specific effect of increasing Line Density on the resulting image?:: A. It improves temporal resolution by increasing the frame rate.B. It improves spatial (lateral) resolution but decreases the frame rate.C. It increases the penetration depth of the ultrasound beam.D. It reduces the amount of acoustic energy delivered to the patient.E. It has no effect on image quality, only on the brightness of the display.

CPD Questions (2D Echo Knobology: Frequency, Focus & Frame Rate)

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CPD Questions (2D Echo Knobology: Frequency, Focus & Frame Rate)

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