The paper is devoted to numerical research of the medical ultrasound tomography problem. This problem consists in finding small inclusions in the breast tissue by boundary measurements of the acoustic waves generated by sources located on the boundary. For medical diagnostic, it is important to recover the image of the acoustical medium and to determine the values of velocity, attenuation and density. In the paper, we describe a numerical experiment of visualization of several inclusions using the energy version of the reverse time migration (RTM). Certainly, the RTM image does not separate velocity and attenuation inclusions. However, kinematic and amplitude analysis gives a possibility to estimate values of the velocity and attenuation. As a result, we split the RTM image into two ones. Note that in this paper we consider the scalar value of sound velocity.

中文翻译：

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医学超声断层扫描中速度和衰减夹杂物的检测

本文致力于医学超声断层扫描问题的数值研究。该问题在于通过边界测量由位于边界上的源产生的声波来发现乳房组织中的小夹杂物。对于医学诊断，重要的是恢复声学介质的图像并确定速度、衰减和密度的值。在本文中，我们描述了使用逆时偏移 (RTM) 的能量版本对多个包裹体进行可视化的数值实验。当然，RTM 图像不会分离速度和衰减夹杂物。然而，运动学和振幅分析提供了估计速度和衰减值的可能性。因此，我们将 RTM 图像分成两个。