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Insights into Imaging
Fig. 3 | Insights into Imaging

Fig. 3

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

Fig. 3

Comparisons of qualitative rating of vascular contour (a), the extent of artifact (b), and overall diagnostic evaluation (c) in CI, CIMAR, and VMIMAR of various keV levels (50 – 120 keV). a In all reconstructions, the scores of vascular contours gradually increase to the highest level of 3.63 at 70 keV and 3.56 at 80 keV and then decrease to 1.09 at 120 keV. b The score of the extent of the artifact is 1.06 in CI, 3.12 in CIMAR and increases to a maximum of 4.03 at 120 keV. And the score of the extent of the artifact at 80 keV is higher than CIMAR. c The scores of overall diagnostic evaluations gradually increase from the minimum (CI, 1.06) to 3.53 at 80 keV and then decrease to 1.91 in all reconstructions

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