Simulated ultrasound data from carotid artery with vessel wall movement


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, and a model for the movement of the stationary tissue and the vessel wall was included.

The data for the simulation are given below:

Transducer:  3.75 MHz, convex, elevation focused
array probe with 58 elements
Pulse repetition frequency:  3.5 kHz
Angle between flow and beam:  45° 
Ultrasound pulse:  8 cycles at 3.75 MHz 
Sampling frequency:  15 MHz
Resolution:  16 bits samples
Position of vessel center:  32 mm from transducer surface
Vessel radius:  4 mm
Depth of first sample point:  22 mm from transducer surface
Depth of last sample point:  41 mm from transducer surface

The RF data can be obtained from the ftp-server from the directory:

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

The file is called car_rf_wall.mat and the Matlab variable data contains the RF data. One column contains the received RF signal for one pulse emission. The matrix, thus, contains 3500 columns for one second of RF data.


http://courses.healthtech.dtu.dk/22485/ultrasound_data/sim_car_wall.html
Last updated: 11:34 on Thu, 24-Sep-2020