Podcast
Questions and Answers
What effect does increasing the velocity spectral scale have on the waveform?
What effect does increasing the velocity spectral scale have on the waveform?
How can the angle accuracy of the Sample Volume Gate (SVG) be improved?
How can the angle accuracy of the Sample Volume Gate (SVG) be improved?
What does a darker shade of red indicate in a Color Doppler display?
What does a darker shade of red indicate in a Color Doppler display?
What is the primary purpose of adjusting the waveform gain in Doppler ultrasound?
What is the primary purpose of adjusting the waveform gain in Doppler ultrasound?
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In Color Doppler imaging, what does red flow indicate?
In Color Doppler imaging, what does red flow indicate?
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Study Notes
Color Doppler
- Color scale on 30, correlates to blood velocity
- Increasing scale, makes waveform smaller, vice versa
- Adjusting waveform gain, strengthens Doppler signal
Sample Volume Gate
- Represented by parallel lines on Doppler line
- Represents area of flow assessed with Doppler
Angle Correction
- Slant line attached to SVG
- Should be parallel to vessel angle
- Most accurate angle to vessel
Color Representation
- Red hue = flow towards transducer (positive Doppler shift)
- Blue hue = flow away from transducer (negative Doppler shift)
- Slower flow displayed darker red/blue
- Faster flow displayed brighter red/blue
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Description
Test your knowledge on the fundamentals of Doppler ultrasound. This quiz covers key topics such as color Doppler scale, sample volume gate, angle correction, and color representation. Perfect for students and professionals looking to enhance their understanding of Doppler imaging.
