D5.4 Compensation of Strong Aberrations with a Time Reversal Virtual Array for Ultrasound Imaging
- Event
- SMSI 2020
-
(did not take place because of Covid-19 virus pandemic) - Band
- SMSI 2020 - Measurement Science
- Chapter
- D5 Advanced Methods & Measurement Systems
- Author(s)
- L. Grüter, R. Nauber, C. Kupsch, J. Czarske - TU Dresden, Dresden (Germany)
- Pages
- 299 - 300
- DOI
- 10.5162/SMSI2020/D5.4
- ISBN
- 978-3-9819376-2-6
- Price
- free
Abstract
Ultrasound-based imaging represents an inexpensive and mobile alternative to x-ray-based techniques for medical diagnosis of stroke. However, skull-induced acoustical aberrations need to be compensated to maintain image quality. We propose a non-invasive calibration method that utilizes two independent acoustical accesses and a time reversal virtual array (TRVA). The proposed method is characterized in a model experiment and results in an improvement of the lateral resolution and the peak to background ratio by 35% and 10% respectively.