Optimal quality of SA images project

Project work: Monday, May 29, 13.00-17.00; Tuesday, May 30, 08.00-12.00 and 13.00-17.00; Wednesday, May 31, 13.00-17.00 in the group rooms Building 349, Ground floor Project presentation preparation is Thursday from 8:00-12:00, and the presentations are from 13:00-17:00.

Purpose

The quality of synthetic aperture images are dependent on the number of emissions, the number of receiving elements, and the probe used in combination with the beamforming performed. This project investigates the influence of the various compromises taken when making SA imaging and determines the optimal values of the various parameters.

Preparation

1. Read the notes on SA imaging and the paper below.
2. Simulate data for the GE 9L-D probe with single and multi elements emissions and generate SA images. Evaluate the quality using the FWHM and cystic contrast
3. Design an experiment for acquiring data with the Verasonics scanner and use the GE 9L-D probe for acquiring a complete set of data for the experiments.
4. Beamform the images for the wire phantom and find the FWHM and cystic contrast
5. Investigate the influence of the number of transmissions, F# in receive, number of receiving elements and other factors influencing the image quality
6. What are the optimal choices?

Papers and reading material:

• J. A. Jensen, B. G. Tomov, L. E. Haslund, N. S. Panduro and C. M. Sørensen: Universal Synthetic Aperture Sequence for Anatomic, Functional and Super Resolution Imaging, Accepted for publication in IEEE UFFC, 2023
• J. A. Jensen, S. Nikolov, K. L. Gammelmark and M. H. Pedersen, (2006). Synthetic Aperture Ultrasound Imaging. Ultrasonics, 44, e5-e15.
• S. Nikolov: Synthetic aperture tissue and flow ultrasound imaging, PhD dissertation, Technical University of Denmark, 2001.

Dissemination:

Make a 10 minutes presentation of your project, which will be discussed on Thursday, June 1 from 13:00. There is 15 minutes available for each project group.