CN EN
Contact Us

Contact Us

AcoPilot® IVUS System
UltraFlyer® IVUS Catheter (50/65 MHz)

Product Introduction

Integrated IVUS imaging and physiology platform. One catheter, one pullback. Simultaneously assess anatomy, lesion morphology, and ischemia. Enabling precision throughout PCI.

Key Features

Clinical Benefits

  • 01

    Precisely assess stenosis severity. Improve diagnostic accuracy.

  • 02

    Identify high-risk plaque features. Support timely clinical intervention.

  • 03

    Guide precise stent implantation. Optimize PCI outcomes.

  • 04

    Assess stent apposition. Reduce the risk of restenosis.

Diagnostic Accuracy of Artificial Intelligence-Enhanced Ultrasonic Flow Ratio for On-Site Assessment of Coronary Stenosis (FEATURE Study)

Liu L, Yu L, Ding D, et al. JACC Asia. 2026. doi:10.1016/j.jacasi.2026.04.011

The FEATURE prospective trial demonstrated onsite UFR calculation in the cath lab achieves 94% diagnostic accuracy and AUC 0.96, significantly outperforming MLA, and can be routinely used clinically.

Ultrasonic flow ratio measured immediately after successful rotational atherectomy with stent implantation predicts major adverse cardiovascular events

Zhao T, Jin Q, Zhang X, et al. Front Cardiovasc Med. 2025;12:1418587. doi:10.3389/fcvm.2025.1418587

Post-rotational atherectomy plus stenting UFR is an independent predictor of 12-month MACE (C-index 0.82), with predictive performance superior to post-procedural μFR, serving as a prognostic stratification tool for heavily calcified lesions.

Segmental post-percutaneous coronary intervention physiological gradients using ultrasonic or optical flow ratio: insights from ASET JAPAN study

Revaiah PC, Miyashita K, Tsai TY, et al. Eur Heart J Imaging Methods Pract. 2025;3(1):qyaf017. doi:10.1093/ehjimp/qyaf017

The ASET JAPAN study demonstrates that post-PCI segmental UFR/OFR gradients identify residual ischemia and predict adverse outcomes, guiding stent optimization and achieving an upgrade from anatomical to physiological satisfaction.

Comparative Analysis of Optical Flow Ratio (OFR) Derived From OCT Images and Ultrasonic Flow Ratio Derived From IVUS at Sequential Side Branches Within the Same Segment of the Coronary Vessel

Revaiah P, Bajaj R, Miyashita K, et al. JACC. 2024;84(18_Supplement):B180. doi:10.1016/j.jacc.2024.09.615

OFR and UFR show good physiological agreement at sequential side branches within the same vessel. UFR, with the tissue penetration advantage of IVUS, holds greater potential for segmental assessment in calcified and complex lesions.

Diagnostic performance of ultrasonic flow ratio versus quantitative flow ratio for assessment of coronary stenosis

Yang C, Sui YG, Shen JY, et al. Int J Cardiol. 2024;400:131765. doi:10.1016/j.ijcard.2024.131765

A head-to-head comparison shows UFR outperforms μFR (AUC 0.93 vs 0.87; accuracy 86.9% vs 80.6%), with particularly significant advantages in small vessels, long lesions, and calcified complex lesions.

Diagnostic performance of intravascular ultrasound-based fractional flow reserve in evaluating of intermediate left main stenosis

Sui YG, Yang C, Guan CD, et al. J Geriatr Cardiol. 2024;21(1):34-43. doi:10.26599/1671-5411.2024.01.003

For intermediate left main stenosis, UFR achieves 88.7% diagnostic accuracy and AUC 0.94, significantly outperforming traditional MLA cutoffs (4.5/6.0 mm²), avoiding MLA threshold controversy and over-intervention.

Accuracy of Intravascular Ultrasound-Based Fractional Flow Reserve in Identifying Hemodynamic Significance of Coronary Stenosis

Yu W, Tanigaki T, Ding D, et al. Circ Cardiovasc Interv. 2021;14(2):e009840. doi:10.1161/CIRCINTERVENTIONS.120.009840

The first clinical validation study of UFR shows strong correlation with invasive FFR (r=0.87), diagnostic accuracy of 86.6% and AUC 0.93, significantly outperforming IVUS-derived MLA (AUC 0.75).