Impact of IVUS Guidance on Clinical and Procedural Outcomes in Intracoronary Brachytherapy.

18 All-cause mortality was numerically lower in the IVUS group but did not reach statistical significance, and multivariate modeling confirmed that IVUS use was not independently associated with survival benefit.

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In contrast, although all-cause mortality showed a trend toward lower rates in the IVUS group on KM curves, IVUS use was not associated with a reduction in mortality over 2 years in the unadjusted Cox model (HR: 0.55; 95% CI: 0.26-1.17; P = 0.12) ( Figure 3 ).

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