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Inicio  /  Applied Sciences  /  Vol: 9 Par: 12 (2019)  /  Artículo
ARTÍCULO
TITULO

The Application of Adaptive Time Gain Compensation in an Improved Breast Ultrasound Tomography Algorithm

Chang Liu    
Binzhen Zhang    
Chenyang Xue    
Guojun Zhang    
Wendong Zhang and Yijun Cheng    

Resumen

In order to better detect information about a mass in breast tissue, an ultrasound tomography algorithm based on adaptive time gain compensation (TGC) was designed. Field II was utilized to automatically evaluate the phantom attenuation coefficient and compensate for the attenuated image. The image reconstruction algorithm process is presented here. Furthermore, the experimental setup with the cylindrical motion of a piezoelectric micromachined ultrasonic transducer (PMUT) linear array was used to detect the mass in the breast model. The attenuation coefficient was evaluated by using the spectral cross-correlation method. According to the acquired attenuation coefficients, TGC compensates for the pulse-echo signal, and the horizontal slice image was reconstructed using the tomography algorithm. The experimental results show that this algorithm can evaluate the attenuation coefficient of the breast model and improve the ability to detect an internal mass. At the same time, the realization of attenuation compensation with software is beneficial to the development of portable medical equipment.

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