Photoacoustic imaging using acoustic reflectors to enhance planar arrays
Photoacoustic imaging using acoustic reflectors to enhance planar arrays
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DOI：
10.1117/1.jbo.19.12.126012
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发表时间：
2014-12-01
影响因子：
3.5
通讯作者：
Cox, Ben
中科院分区：
文献类型：
--
作者：
Ellwood, Robert;Zhang, Edward;Cox, Ben
平面传感器阵列在用于光声成像时具有优点：它们不需要将成像目标封闭起来，并且比弯曲阵列更容易制造。然而，平面阵列由于其有限的尺寸，对声场的观察是有限的；因此，并非光声源发出的所有声波都能被记录下来。这种数据的丢失导致了重建光声图像中的伪影。描述了一种平面法布里-珀罗传感器与垂直声反射器相结合的探测阵列结构，并进行了实验实现。这样既保留了平面传感器的探测优势，又增加了有效探测孔径，从而改善了重建的光声图像。(C)作者。由SPIE在知识共享署名3.0未移植许可下发布。
Planar sensor arrays have advantages when used for photoacoustic imaging: they do not require the imaging target to be enclosed, and they are easier to manufacture than curved arrays. However, planar arrays have a limited view of the acoustic field due to their finite size; therefore, not all of the acoustic waves emitted from a photoacoustic source can be recorded. This loss of data results in artifacts in the reconstructed photoacoustic image. A detection array configuration which combines a planar Fabry-Perot sensor with perpendicular acoustic reflectors is described and experimentally implemented. This retains the detection advantages of the planar sensor while increasing the effective detection aperture in order to improve the reconstructed photoacoustic image. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License.