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Insights into Imaging
Fig. 4 | Insights into Imaging

Fig. 4

From: Optimal combination periprosthetic vasculature visualization and metal artifact reduction by spectral computed tomography using virtual monoenergetic images in total hip arthroplasty

Fig. 4

A series of axial enhanced CT images of a patient with THA. Images were reconstructed as CI, CIMAR, and VMIMAR at 50–120 keV with 10 intervals (window center 60 HU; window width 360 HU). Images show the metal artifact is gradually reducing with increasing energy level; however, the vascular visualization is worsening. The vascular visualization is terrible above 100 keV, while the vessel is disturbed by artifacts below 70 keV. The best performance is found at 80 keV

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