AO-IVUS is an upgraded version of Navi-IVUS with an added pullback transducer system to standardize real-time IVUS-based 3D wiring using the tip detection method. We recently reported its efficacy in experimental CTO lesions (3) and began using AO-IVUS in clinical practice in October 2019 (4).

In this respect, intravascular ultrasound (IVUS) plays a crucial role in the recanalization of CTOs. Pre-PCI imaging is useful to evaluate the path and understand lesion complexity and morphology. IVUS can easily and accurately identify superficial and deep calcified areas, proximal cap, dissections, and side branches.

In this review, we describe the use of intravascular imaging for lesion crossing, plaque characterization and wire tracking, extra- or intra-plaque, and stent sizing and optimization during CTO PCI and summarize the findings of the major studies in this field.

Jul 8, 2015 · This Chronic Total Occlusion InterVention with drUg-eluting Stents (CTO-IVUS) study, the first randomized trial, demonstrated that intravascular ultrasound–guided percutaneous coronary intervention may improve 12-month major adverse cardiac event rates after drug-eluting stent implantation when compared with conventional angiography–guided ...

3 days ago · Suzuki S, Okamura A, Iwakura K, Iwamoto M, Watanabe S, Nagai H, Sumiyoshi A, Shiojima I, Sakata Y, Fujii K. Initial outcomes of AnteOwl IVUS-based 3D wiring using the tip detection method for CTO intervention. JACC Cardiovasc Interv. 2021;14:812–814. doi: 10.1016/j.jcin.2021.01.048

In CTO, the lesion subsets where IVUS is most useful are: (I) ambiguous, blunt or absent proximal cap in the ante-grade approach , (II) for the accomplishment of CART or reverse CART in the retrograde approach and (III) for the determination of luminal passage of coronary guide wire in …

Jun 1, 2020 · AO-IVUS is an upgraded version of Navi-IVUS with an added pullback transducer system to standardize real-time IVUS-based 3D wiring using the tip detection method. We recently reported its efficacy in experimental CTO lesions (3) and began using AO-IVUS in clinical practice in October 2019 (4).

Sep 11, 2014 · Intravascular ultrasound (IVUS)-guided chronic total occlusion (CTO) intervention significantly improves clinical outcomes during the 12 months following new generation drug-eluting stent (DES) implantation, as compared to conventional angiography-guided CTO intervention, according to results from the IVUS-CTO trial presented Sept. 14 at TCT 2014.

Jun 1, 2020 · Objectives: The study assessed the efficacy of the tip detection method during intravascular ultrasound (IVUS)-based 3-dimensional (3D) wiring with a new chronic total occlusion (CTO)-specific...

In this respect, intravascular ultrasound (IVUS) plays a crucial role in the recanalization of CTOs. Pre-PCI imaging is useful to evaluate the path and understand lesion complexity and morphology. IVUS can easily and accurately identify superficial and deep calcified areas, proximal cap, dissections, and side branches.