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.
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