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 data for the simulation are given below:
| Transducer: | 5 MHz, linear array probe with 64 active elements |
| Pulse repetition frequency: | 15 kHz |
| Angle between flow and beam: | 70° |
| Ultrasound pulse: | 4 cycles at 5 MHz |
| Sampling frequency: | 100 MHz |
| Resolution: | 16 bits samples |
| Position of vessel center: | 25 mm from transducer surface |
| Vessel radius: | 3.0 mm |
| Depth of first sample point: | 19.0 mm from transducer surface |
| Depth of last sample point: | 34.0 mm from transducer surface |
The RF data can be obtained from the ftp-server from the directory:
The file is called combined_data_carotis_70_deg and the Matlab variable data contains the RF data. One column contains the received RF signal for one pulse emission. The matrix, thus, contains 5000 columns for one second of RF data. The various variables used in the simulation can be found in the file parameters.mat
The reference profiles for the file carotid_profiles.mat. The reference profiles can also be seen below.
