Ultrasound RF in-vivo data
The data was obtained from a healthy 33 years old male. The audio data was sampled for both
the reverse and forward flow. The data for the measurements are given below:
The data for the measurements are given below:
| Ultrasound scanner: | B-K Medical A/S type 3535 |
| Scan mode: | Duplex |
| Transducer: | B-K 8556, 3.2 MHz linear array probe |
| B-mode frame rate: | 27 f/s |
| B-mode gain: | 30% |
| Doppler gain: | 85% |
| Pulse repetition frequency: | 3.5 kHz |
| Sampling frequency: | 15 MHz |
| Resolution: | 12 bits samples |
The data can be obtained from the ftp-server from the directory:
https://courses.healthtech.dtu.dk/22485/files/ult_data/in-vivo/rf_data/
Several files are found. The properties are listed in the following table:
| Vessel | File name | Samples per line | RF lines | Angle |
Depth | Range gate | Notes |
| Aorta, logitudinal scan |
pma2.mat |
128 | 8000 | 52° | 50 mm |
2 mm |
See note below |
| Hepatic vein, oblique |
pmh1.mat |
128 | 8000 | Not recorded | 45 mm | 2 mm |
Note:
The first 56 samples for each RF line in the data found in the file pma2.mat
(Aorta, logitudinal scan) is corrupted and should be discarded.
The data from sample 57 to sample 128 are correct, and can be used for
velocity estimation.
Depth is the distance from the transducer surface to the center of the
range gate used during the measurement.
The files should be downloaded in binary format. The files can be directly read and manipulate
with Matlab. The variable pmXX contains the RF data with one column for each RF puls-echo
line.
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