Fast Cone-beam CT reconstruction using GPU

Fast Cone-beam CT reconstruction using GPU
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使用 GPU 进行快速锥束 CT 重建

DOI:
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发表时间:
2014
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通讯作者:
G. Domenico
G. Domenico
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文献类型:
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作者:
G. Domenico

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医学 CT 成像或工业无损检测等许多应用领域都需要快速 3D 锥束 CT 重建。我们使用 GPU 硬件和 CUDA 平台来加速 Feldkamp Davis Kress (FDK) 算法,从而可以重建锥束 CT 数据。在这项工作中,我们展示了 FDK 算法最耗时的步骤的实现:反投影。我们还解释了 CUDA 架构并行化算法所需的转换。我们的 FDK 算法实现还允许进行快速重建,这意味着重建在数据采集结束后立即完成。
Fast 3D cone-beam CT reconstruction is required by many application fields like medical CT imaging or industrial non-destructive testing. We have used GPU hardware and CUDA platform to speed-up the Feldkamp Davis Kress (FDK) algorithm, which permits the reconstruction of cone-beam CT data. In this work, we present our implementation of the most time-consuming step of FDK algorithm: back-projection. We also explain the required transformations to parallelize the algorithm for the CUDA architecture. Our FDK algorithm implementation in addition allows to do a rapid reconstruction, which means that the reconstruction is completed just after the end of data acquisition.