作　　者： ; ;

机构地区： 陕西理工大学物理与电信工程学院物理系

出　　处： 《光子学报》 2007年第9期1726-1729,共4页

摘　　要： 利用多元相控技术发展了一体化光声快速成像系统,该成像系统集成了激光传输、光声激发和光声信号探测.多元线性阵列探测器以反射模式接收光声信号,并通过相控聚焦技术快速成像,得到了不同深度的猪油模拟样品的光声像和活体动物不同直径血管的光声像,系统的横向分辨率为0 .5 mm,光声采集成像时间为5 s .该一体化光声快速成像系统与现有的光声成像系统相比,具有快速方便等特点. An integrative fast photoacoustic imaging system based on multi-element phase controlled technique was developed, which integrated laser delivery, photoacoustic excitation and photoacoustic detection. The PA signals were received by the multi element transducer array in a reflection mode, reconstructed by phase-controlled focus algorithm. The PA images of different depths of phantom lard and animal blood vessels of different diameters were obtained. The lateral resolution of the system was 0.5 mm, and the whole PA imaging time was less than 5 s.

关 键 词： 光声成像 一体化 相控聚焦 系统

领　　域： [生物学]