Measured data for convex array and matrix phantom
The RF data was obtained from measuring on wires in a phantom by using the SARUS experimental scanner and a convex array probe. The geometry of the phantom is shown below, where wires are placed with a spacing of 1 cm.
| Ultrasound scanner: | SARUS |
| Scan mode: | B-mode (Duplex mode) |
| Transducer: | BK 8820e, 3.5 MHz convex array probe |
| Number of elements | 192 |
| Transducer center frequency | 3.50 MHz |
| Number of active elements in transmit | 64 |
| Height of one element | 13 mm |
| Width of one element | 0.30 mm |
| Kerf (gap) between elements | 0.03 mm |
| Convex radius | 60.3 mm |
| Electronic focus depth | 42.2 mm |
| Elevation focus | 65 mm |
| B-mode frame rate: | 0.78 f/s |
| Speed of sound: | 1491 m/s |
| Pulse repetition frequency: | 100 Hz |
| Sampling frequency: | 17.5 MHz |
| Sample format: | uin16 |
All the data is stored in the file (260 MBytes):
It is taken from a duplex sequence with intermixed B-mode and duplex flow emissions. The B-mode data are in the directory: duplex/B_mode/seq_0001, where seq_0001 holds all the data for the first image. A file elem_data_em0XXX.mat exist for each emission, where XXX is from 1 to 129. For the first file elements 1 to 64 has been used for transmission and for the next element 2 to 65 and so forth. Element 1 has the most negative x coordinate value. The file holds the matix samples with the received signals for all 192 transducer elements.
The zip-file also hold the files parameters.mat, which hold structures with all the variables used for the measurement of the phantom.
Resulting image for the matrix wire phantom