Modified Distorted Born Iterative Method with Multi-Distance Receiver for Enhanced-Quality Reconstruction in Ultrasound Tomography

Dr. Luong Thi Theu¹, Student. Dao Minh Duc², Dr. Tran Quang Huy³ – ¹Hoa Binh University, ²K46, Faculty of physics, Hanoi Pedagogical University 2, ³Faculty of physics, Hanoi Pedagogical University 2

Abstract:

Ultrasound tomography would allow ultrasound imaging to reach its full potential, compared to X-ray, MRI, etc. It is based on inverse scattering and has the capability to detect structures whose sizes are smaller than the wavelength of the incident wave, as opposed to conventional one using pulse-echo technique. Some material properties such as sound contrast and attenuation are very useful to detect small objects. The Distorted Born Iterative Method (DBIM) based on first-order Born approximation is an efficient diffraction tomography approach. In this paper, we propose a modified DBIM approach in order to improve the reconstruction quality by using the information of the multi-distance receiver. The normalized error of the proposed approach is significantly reduced.

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Keywords: Ultrasound, tomography, inverse scattering, Distorted Born iterative method (DBIM), multi-distance receiver