Imaged Ultrasonic Scattering Object Using Beamforming Strategy Along with Frequency Compounding

Ultrasonic imaging is commonly known for its popular reconstruction methods such as B-mode, which is widely used in commercial ultrasound devices. However, B-mode measurement is still limited in quality and detailed information about the imaged object. Recently, the method of tomographic ultrasound has become interested due to the strong development of hardware and software for devices. This paper proposes the application of frequency compounding technique in beamformed DBIM tomographic imaging. Beamformed approach using several probe transmitting elements simultaneously to offer a narrow beam which has the ability to minimize the noise effect has been applied for DBIM-based density imaging. When applying frequency compounding, it promises to improve the convergence speed, spatial resolution of imaged objects, noise reduction, and can create images of high-contrast objects. The numerical simulation results show that the image recovery performance is significantly increased and the noise is considerably improved when applying the proposed method.