Utility of spectral CT with orthopedic metal artifact reduction algorithms for ¹²⁵I seeds implantation in mediastinal and hepatic tumors.

In the ROI H/L hypo-/hyperdense artifacts, as the VMI keV increased in each group of CI/VMI (50–150 keV) and CI/VMI + O-MAR (50–150 keV), the AI values showed a decreasing trend, and the differences were statistically significant (P<0.001).

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In the image quality assessment of tissue affected by artifacts, as the VMI keV increased, the subjective evaluation scores of diagnosis and image quality of hypo-/hyperdense artifact region in the VMI + O-MAR (50–150 keV) group showed an increasing trend.

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