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?
- It enlarges the overall Doppler signal.
- It reverses the direction of flow representation.
- It makes the waveform smaller. (correct)
- It makes the waveform more pronounced.
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?
- By aligning the slant line attached to the SVG with the angle of the vessel. (correct)
- By ensuring the SVG is placed at a right angle to the flow.
- By adjusting the sample volume gain to a higher setting.
- By positioning the SVG further downstream.
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?
- Flow away from the transducer.
- Slower blood flow. (correct)
- Faster blood flow.
- Negative Doppler shift.
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?
In Color Doppler imaging, what does red flow indicate?
In Color Doppler imaging, what does red flow indicate?
Flashcards
Color Doppler Scale
Color Doppler Scale
Color-coded scale representing blood flow velocity. Red for flow toward transducer; blue for flow away.
Sample Volume Gate
Sample Volume Gate
Area of blood flow measured using Doppler; shown as parallel lines on display.
Angle Correct Doppler
Angle Correct Doppler
Technique to accurately measure blood flow velocity by correctly aligning the angle of the vessel to the transducer.
Doppler Velocity and Color
Doppler Velocity and Color
Signup and view all the flashcards
Doppler Gain
Doppler Gain
Signup and view all the flashcards
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
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
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.
