Phase aberration correction in ultrasound imaging

Phase aberration in ultrasound imaging is caused by tissue structures with different speed-of-sound degrades and reduces the quality of B-mode images. Refraction at the boundary between subcutaneous fat and muscle is one of the dominant factors behind such degradation. 

Phase aberration correction has been a research topic for decades. Many algorithms are proposed. In this project, you will implement several already published aberration correction methods  in USTB. The methods will be tested both on simulated and on real recorded data.

In the project, you will do the following:

  • Study the literature on phase aberration correction
  • Simulate the generation of various medical ultrasound images using the Field II and k-Wave wave propagation codes and USTB.
  • Implement various methods for phase aberration correction in USTB
  • Test the implementation on real ultrasound data recorded using our Verasonics ultrasound scanner.

Qualifications:

  • Excellent MATLAB programming skills (Object oriented MATLAB)
  • Signal processing (IN3190/4190, IN5450, INF4480, and preferably IN3015/4015)
  • Git Version Control

Literature (for example):

  • Flax, S. W., and Matthew O'Donnell. "Phase-aberration correction using signals from point reflectors and diffuse scatterers: Basic principles." IEEE transactions on ultrasonics, ferroelectrics, and frequency control 35.6 (1988): 758-767.
  • Måsøy, Svein-Erik. "Estimation and correction of aberration in medical ultrasound imaging." PhD thesis, NTNU, 2004. http://hdl.handle.net/11250/249776
Emneord: ultrasound, aberration, USTB
Publisert 27. sep. 2021 15:41 - Sist endret 27. sep. 2021 15:50

Omfang (studiepoeng)

60