Real-time intraoperative 4D full-range FD-OCT based on the dual graphics processing units architecture for microsurgery guidance.
Real-time intraoperative 4D full-range FD-OCT based on the dual graphics processing units architecture for microsurgery guidance.
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DOI：
10.1364/boe.2.000764
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发表时间：
2011-03-01
影响因子：
3.4
通讯作者：
Kang JU
中科院分区：
文献类型：
--
作者：
Zhang K;Kang JU
实时 4D 全范围无复共轭傅里叶域光学相干断层扫描 (FD-OCT) 使用双图形处理单元（双 GPU）架构实现。一个 GPU 专用于 FD-OCT 数据处理，而第二个 GPU 用于体渲染和显示。还实现了GPU加速的非均匀快速傅里叶变换（NUFFT）来抑制点扩散函数的旁瓣，以提高图像质量。使用128,000 A扫描/秒的OCT光谱仪，我们获得了5体积/秒的实时全范围3D OCT成像。使用显微外科工具对体模进行的完整显微操作是通过不同视角下相同 3D 数据集的多个体积渲染来监控的。与传统的手术显微镜相比，该技术将为外科医生提供更全面的显微手术部位空间视图，并可作为有效的术中引导工具。
Real-time 4D full-range complex-conjugate-free Fourier-domain optical coherence tomography (FD-OCT) is implemented using a dual graphics processing units (dual-GPUs) architecture. One GPU is dedicated to the FD-OCT data processing while the second one is used for the volume rendering and display. GPU accelerated non-uniform fast Fourier transform (NUFFT) is also implemented to suppress the side lobes of the point spread function to improve the image quality. Using a 128,000 A-scan/second OCT spectrometer, we obtained 5 volumes/second real-time full-range 3D OCT imaging. A complete micro-manipulation of a phantom using a microsurgical tool is monitored by multiple volume renderings of the same 3D date set with different view angles. Compared to the conventional surgical microscope, this technology would provide the surgeons a more comprehensive spatial view of the microsurgical site and could serve as an effective intraoperative guidance tool.