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Intravascular Ultrasound-Based Fractional Flow Reserve for Predicting Prognosis after Percutaneous Coronary Intervention

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Abstract

AccuFFRivus is an alternative to fractional flow reserve (FFR) based on intravascular ultrasound (IVUS) images for functional assessment of coronary stenosis. However, its prognostic impact in patients undergoing percutaneous coronary intervention (PCI) is still unclear. This retrospective study aimed to investigate the capability of AccuFFRivus in predicting prognosis. AccuFFRivus was calculated based on postoperative angiographic and IVUS images. Vessel-oriented clinical events (VOCE) at 2 years were recorded and analyzed. A total of 131 participants with 131 vessels were included in the study. VOCE occurred in 15 patients during 2-year follow-up. AccuFFRivus after PCI (post-AccuFFRivus) was significantly higher in the non-VOCE group than in the VOCE group (0.95 ± 0.03 vs. 0.91 ± 0.02, p < 0.001). Multivariate Cox regression showed that AccuFFRivus ≤ 0.94 was a strong independent predictor of VOCE during 2-year follow-up (hazard ratio 23.76, 95% confidence interval: 3.04–185.81, p < 0.001).

Graphical Abstract

The left panel displays the Receiver operating characteristics (ROC) curves of postoperative parameters (post-AccuFFRivus and post-MLA) versus vessel-oriented clinical events (VOCE) occurrence within 2-year follow-up. The right panel demonstrates Kaplan–Meier curves of VOCE stratified by the optimal cut-off of post-AccuFFRivus.

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Data Availability

The datasets that support the findings of this study are available from the corresponding author on reasonable request.

Abbreviations

AUC:

Area under the curve

CCTA:

Coronary computed tomographic angiography

CFD:

Computational fluid dynamic

DES:

Drug-eluting stent

DS:

Diameter stenosis

ESC:

European Society of Cardiology

FFR:

Fractional flow reserve

ICA:

Invasive coronary angiography

IVUS:

Intravascular ultrasound

MI:

Myocardial infarction

MLA:

Minimal lumen area

PCI:

Percutaneous coronary intervention

ROC:

Receiver operating characteristic

RVD:

Reference vessel diameter

TIMI:

Thrombolysis in myocardial infarction

TVR:

Target vessel revascularization

VOCE:

Vessel-oriented clinical event

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Authors and Affiliations

Authors

Contributions

Conception and design: all authors; Project administration: Jianzhen Huang, Huibin Li; Analysis and interpretation of data: Jianzhen Huang, Xinyi Yang, Yumeng Hu; Writing—original draft preparation: Xinyi Yang, Writing—review and editing: Yumeng Hu, Jianzhen Huang, Xiaochang Leng; supervision: Wenjuan Wei, Jianping Xiang; and final approval of the manuscript: all authors.

Corresponding author

Correspondence to Wenjuan Wei.

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Ethics Approval

The study was conducted in accordance with the Declaration of Helsinki and Good Clinical Practice. The study was approved by the instutional review board of The First People's Hospital of Xiaoshan District, and individual consent for this retrospective study was waived.

Conflicts of Interest

All authors have completed the ICMJE uniform disclosure form. Xinyi Yang and Yumeng Hu are employees of ArteryFlow. Xiaochang Leng is a cofounder of ArteryFlow. Jianping Xiang is the chief executive officer of ArteryFlow. The other authors have no conflicts of interest to declare.

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Editor-in-Chief Enrique Lara-Pezzi oversaw the review of this article

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Huang, J., Yang, X., Hu, Y. et al. Intravascular Ultrasound-Based Fractional Flow Reserve for Predicting Prognosis after Percutaneous Coronary Intervention. J. of Cardiovasc. Trans. Res. 16, 1417–1424 (2023). https://doi.org/10.1007/s12265-023-10409-2

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