X-ray phase contrast imaging (PCI) has shown great potential for clinical investigation of soft tissues. However, most of the existing X-ray PCI modalities require either a partially coherent source such as a synchrotron or complex setups that are barely compatible with low-dose and patient tomography. This work demonstrates the possibility to efficiently achieve PCI on a low coherence system with a conventional X-ray tube and a detector compatible with a clinical routine. This was accomplished by adapting the speckle-based imaging setup and the numerical phase retrieval processing methods to the low coherence and the low resolution of the experiment.

中文翻译：

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具有随机掩模和常规系统的X射线相衬成像的隐式跟踪方法

X 射线相衬成像 (PCI) 已显示出软组织临床研究的巨大潜力。然而，大多数现有的 X 射线 PCI 模式需要部分相干源（例如同步加速器）或几乎与低剂量和患者断层扫描不兼容的复杂设置。这项工作证明了在具有常规 X 射线管和与临床常规兼容的探测器的低相干系统上有效实现 PCI 的可能性。这是通过使基于散斑的成像设置和数值相位检索处理方法适应实验的低相干性和低分辨率来实现的。