Accurate Model-Based Reconstruction Algorithm for Three-Dimensional Optoacoustic Tomography
Accurate Model-Based Reconstruction Algorithm for Three-Dimensional Optoacoustic Tomography
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DOI：
10.1109/tmi.2012.2208471
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发表时间：
2012-10-01
影响因子：
10.6
通讯作者：
Razansky, Daniel
中科院分区：
文献类型：
--
作者：
Dean-Ben, X. Luis;Buehler, Andreas;Razansky, Daniel
在许多实际的光声成像实现中，层析成像问题的维数通常被降低到二维或一维扫描几何形状，以简化技术实现，提高成像速度或增加信噪比。然而，这通常以显著降低断层摄影数据的质量、平面外图像伪影以及图像对比度和空间分辨率的总体损失为代价。因此，定量光声图像重建意味着从对象周围尽可能多的位置收集点3-D（体积）数据。在这里，我们提出并验证了一个准确的基于模型的三维光声图像重建的反演算法。通过数值模拟和体模实验，证明了该算法与常用的反投影反演算法相比具有上级性能。
In many practical optoacoustic imaging implementations, dimensionality of the tomographic problem is commonly reduced into two dimensions or 1-D scanning geometries in order to simplify technical implementation, improve imaging speed or increase signal-to-noise ratio. However, this usually comes at a cost of significantly reduced quality of the tomographic data, out-of-plane image artifacts, and overall loss of image contrast and spatial resolution. Quantitative optoacoustic image reconstruction implies therefore collection of point 3-D (volumetric) data from as many locations around the object as possible. Here, we propose and validate an accurate model-based inversion algorithm for 3-D optoacoustic image reconstruction. Superior performance versus commonly-used backprojection inversion algorithms is showcased by numerical simulations and phantom experiments.