Bychkov A S, Zarubin V P, Karabutov A A, Simonova V A, Cherepetskaya E B
Moscow Mining Institute, The National University of Science and Technology MISiS, 6 Leninskiy prospekt, Moscow 119049, Russia; Faculty of Physics, M.V. Lomonosov Moscow State University, 1 Leninskiye Gory, Moscow 119991, Russia.
Moscow Mining Institute, The National University of Science and Technology MISiS, 6 Leninskiy prospekt, Moscow 119049, Russia; International Laser Center, M.V. Lomonosov Moscow State University, 1 Leninskiye Gory, Moscow 119991, Russia.
Photoacoustics. 2017 Jan 30;5:10-16. doi: 10.1016/j.pacs.2017.01.002. eCollection 2017 Mar.
We describe a universal system for research in combined real-time optoacoustic (OA) and laser-ultrasonic (LU) imaging. The results of its testing on the task of needle insertion into the blood vessel model diagnostics are presented. In OA mode, where laser light is absorbed directly in the sample, the contents of blood vessel model is clearly visible. In LU mode, where the short ultrasonic probe pulse scattered on the sample is detected, the needle is clearly visible. The developed solution combining OA and LU imaging modalities due to the common detection system allowed real-time diagnostics of the position of medical needles (0.63 mm and 0.7 mm in diameter) inside blood vessel models (1.6 mm and 2.4 mm in diameter). Frame rate was 10 Hz. High longitudinal spatial resolution of the system - 0.1 mm - allows distinguishing the two walls of the vessel model and the position of the needle inside.
我们描述了一种用于联合实时光声（OA）和激光超声（LU）成像研究的通用系统。展示了其在针对血管模型诊断的针插入任务测试中的结果。在光声模式下，激光直接在样本中被吸收，血管模型的内容清晰可见。在激光超声模式下，检测到在样本上散射的短超声探测脉冲，针清晰可见。由于采用了共同的检测系统，所开发的结合光声和激光超声成像模态的解决方案能够对直径为1.6毫米和2.4毫米的血管模型内直径为0.63毫米和0.7毫米的医用针的位置进行实时诊断。帧率为10赫兹。该系统的高纵向空间分辨率为0.1毫米，能够区分血管模型的两层壁以及内部针的位置。
