This paper presents a new method that complements current techniques available in the high-frequency blood imaging field. A comprehensive scattering model was established to determine the feasibility and frequency range of the blood flow imaging of superficial organs and tissues using high-frequency ultrasound. The transmitting and receiving modes and an algorithm were designed to obtain blood flow information based on differentiation between tissues and blood flow. The system was created and tested first with a model that simulates blood flow and was then used on human tissue. A fine-scale image of a blood vessel could be obtained with this system. Moreover, this method can obtain weak blood flow signal using single pulse rather than the traditional pulse-code method and maintains a high resolution that can be matched to high-frequency structural imaging. This study provides a reliable method for further applications related to diagnoses of superficial organs.

中文翻译：

---

一种使用高频超声对血流进行灰度成像的方法

本文提出了一种新方法，可以补充高频血液成像领域中现有的技术。建立了综合散射模型，以确定使用高频超声对浅表器官和组织进行血流成像的可行性和频率范围。设计了发射和接收模式和算法，以根据组织和血流的差异来获取血流信息。该系统首先使用模拟血流的模型进行创建和测试，然后用于人体组织。使用该系统可以获得血管的精细图像。而且，该方法可以使用单脉冲而不是传统的脉冲编码方法获得微弱的血流信号，并保持与高频结构成像相匹配的高分辨率。该研究为浅表器官诊断相关的进一步应用提供了可靠的方法。