Simulated ultrasound data from carotid artery


The RF data was obtained from simulating the flow in the carotid artery by using the Field II program and the data from page 80 in the book. The Womersley-Evans method for pulsed flow described on page 75-79 was used for finding the pulsatile velocity. The RF data was then demodulated and sampled to obtain the complex audio data.

The data for the simulation are given below:

Transducer: 3 MHz, linear array probe with 64 elements
Pulse repetition frequency: 3.5 kHz
Wall filter: none
Angle between flow and beam: 55°
Ultrasound pulse: 4 cycles at 3 MHz
Sampling frequency: 20 MHz
Resolution: 16 bits samples
Position of vessel center: 20 mm from transducer surface
Vessel radius: 2 mm
Position of range gate: 21 mm from transducer surface

The audio data can be obtained from the web-server from the directory:

https://courses.healthtech.dtu.dk/22485/files/ult_data/simulation/audio_data/

The file is called car_audio.mat and the Matlab variable audio contains the complex audio data.


http://courses.healthtech.dtu.dk/22485/ultrasound_data/sim_audio_car.html
Last updated: 11:29 on Thu, 24-Sep-2020