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TAs: Süleyman Yasin Peker |
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Verasonics Inc. "Vantage 32 Ultrasound Research System User Guide." Verasonics, 2020.
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2. Pre-Lab Quiz
Quiz Date: xxxxxx 05.12.2024
The quiz will cover the principles of ultrasound technology, imaging modes, and Doppler flow measurement.
Review Time-of-Flight measurement, ultrasound transducer functionality, and the basics of Color Doppler and Power Doppler imaging.
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Due Date: 11.12.2024
Submit a report analyzing:
Using the shared ultrasound (US) signals Experiment #7 - Data, calculate the Time-of-Flight (TOF) values for the common carotid artery (CCA) walls and determine the artery diameter for both systolic and diastolic phases.
Compare the artery diameter for systolic and diastolic phases in terms of artery diameter.
The working frequency of the transducer is 2.25 MHz. So, bandpass filter the signal with suitable cutoff frequencies.
While calculating the TOF values, envelope to signal to evaluate the amplitudes.
By adjusting the parameters of the peak detection function, isolate the echoes scattered from the anterior and posterior walls.
Plot step-by-step the signal processing algorithm:
Raw US signals for frames #x, y, z.
Filtered US signals for frames #x, y, z.
Enveloped US signals for frames #x, y, z.
Peak detected US signals for frames #x, y, z.
Adjusting Find the anterior and posterior walls after adjusting the peak detection function for frames #x, y, z.
TOF calculation for detected anterior and posterior walls.
Artery diameter calculation for detected anterior and posterior walls.
Show the artery diameter change and describe which frame could be systolic and diastolic phases
Describe the used parameters for filter frequencies and peak detecion.
Explain the signal processing algorithm.
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