光声成像技术在兔脑成像中的应用

伴随着无损检测技术的不断发展,光声成像技术已成为生物医学工程领域的研究热点之一。采用环形阵列探测器作为成像平台,高频短波脉冲激光作为辐射源,滤波反投影重建算法进行图像重建,利用光声成像技术对兔子头部进行快速成像试验。结果表明,该系统能够实现兔子脑部无损伤、快速高效地成像,并揭示了提高大尺寸动物成像分辨率的方法,为进一步实现医学无损检测提供坚实有利的技术条件。

Application of Photoacoustic Tomography in Rabbit Brain

With the development of the non-destructive testing technology, Photoacoustic imaging technology has become one of the research focuses in biomedical engineering. With an annular array detector as imaging platforms and high-frequency pulse laser as a radiation source, the experiment adopted a filter back-projection algorithm to rebuild images and applied the photoacoustic tomography for fast imaging of rabbit brain. Experimental results showed that the system realized non-destructive, fast and efficient rabbit brain imaging, which revealed how to improve the imaging resolution of large size animals and further provided solid favorable technical conditions for medical nondestructive testing.