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

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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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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