[Comparison of Low-tube-voltage Images and Virtual Monoenergetic Images in CTA Imaging of the Head with Photon-counting Detector CT].

PURPOSE: A head computed tomography angiography (CTA) is widely used for diagnosing cerebrovascular diseases and preoperative vascular assessment. A photon-counting detector CT (PCD-CT)enables virtual monochromatic image (VMI)reconstruction regardles…

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