Neleman T, Liu S, Tovar Forero MN, Hartman EMJ, Ligthart JMR, Witberg KT, Cummins P, Zijlstra F, Van Mieghem NM, Boersma E, van Soest G, Daemen J. The Prognostic Value of a Validated and Automated Intravascular Ultrasound-Derived Calcium Score.
J Cardiovasc Transl Res 2021;
14:992-1000. [PMID:
33624259 PMCID:
PMC8575752 DOI:
10.1007/s12265-021-10103-1]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 01/11/2021] [Indexed: 01/15/2023]
Abstract
Background
Coronary calcification has been linked to cardiovascular events. We developed and validated an algorithm to automatically quantify coronary calcifications on intravascular ultrasound (IVUS). We aimed to assess the prognostic value of an IVUS-calcium score (ICS) on patient-oriented composite endpoint (POCE).
Methods
We included patients that underwent coronary angiography plus pre-procedural IVUS imaging. The ICS was calculated per patient. The primary endpoint was a composite of all-cause mortality, stroke, myocardial infarction, and revascularization (POCE).
Results
In a cohort of 408 patients, median ICS was 85. Both an ICS ≥ 85 and a 100 unit increase in ICS increased the risk of POCE at 6-year follow-up (adjusted hazard ratio (aHR) 1.51, 95%CI 1.05–2.17, p value = 0.026, and aHR 1.21, 95%CI 1.04–1.41, p value = 0.014, respectively).
Conclusions
The ICS, calculated by a validated automated algorithm derived from routine IVUS pullbacks, was strongly associated with the long-term risk of POCE.
Graphical abstract
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Supplementary Information
The online version contains supplementary material available at 10.1007/s12265-021-10103-1.
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