ECG-Triggered, Single Cardiac Cycle, High-Speed, 3D, Intracoronary OCT

Jang, Sun Joo; Park, Hyun-Sang; Song, Joon Woo; Kim, Tae Shik; Cho, Han Saem; Kim, Sunwon; Bouma, Brett E.; Kim, Jin Won; Oh, Wang‐Yuhl

doi:10.1016/j.jcmg.2015.11.021

Cited by 11 publications

(5 citation statements)

References 3 publications

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“…Optical Coherence Tomography uses back-reflected infrared light to perform in-situ micron scale tomographic imaging of the vessel anatomy and internal microstructure of plaques [ 32 , 33 ]. With manual injection of 20ml of contrast solution, the OCT catheter (2.7 F) was automatically pulled back at speed of 20mm/sec and rate of 100 frames per second spanning approximately 50mm (a high frame-rate is desirable for many reasons, including higher longitudinal resolution and cardiac motion-free intracoronary imaging [ 34 , 35 ]).…”

Section: Methodsmentioning

confidence: 99%

3D reconstruction of coronary arteries from 2D angiographic projections using non-uniform rational basis splines (NURBS) for accurate modelling of coronary stenoses

et al. 2018

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ObjectiveAssessment of coronary stenosis severity is crucial in clinical practice. This study proposes a novel method to generate 3D models of stenotic coronary arteries, directly from 2D coronary images, and suitable for immediate assessment of the stenosis severity. MethodsFrom multiple 2D X-ray coronary arteriogram projections, 2D vessels were extracted. A 3D centreline was reconstructed as intersection of surfaces from corresponding branches. Next, 3D luminal contours were generated in a two-step process: first, a Non-Uniform Rational B-Spline (NURBS) circular contour was designed and, second, its control points were adjusted to interpolate computed 3D boundary points. Finally, a 3D surface was generated as an interpolation across the control points of the contours and used in the analysis of the severity of a lesion. To evaluate the method, we compared 3D reconstructed lesions with Optical Coherence Tomography (OCT), an invasive imaging modality that enables high-resolution endoluminal visualization of lesion anatomy. ResultsValidation was performed on routine clinical data. Analysis of paired cross-sectional area discrepancies indicated that the proposed method more closely represented OCT contours than conventional approaches in luminal surface reconstruction, with overall root-meansquare errors ranging from 0. ConclusionThe algorithm accurately reconstructed 3D models of lesioned arteries and enabled quantitative assessment of stenoses. The proposed method has the potential to allow immediate analysis of the stenoses in clinical practice, thereby providing incremental diagnostic and prognostic information to guide treatments in real time and without the need for invasive techniques.

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Section: Methodsmentioning

confidence: 99%

3D reconstruction of coronary arteries from 2D angiographic projections using non-uniform rational basis splines (NURBS) for accurate modelling of coronary stenoses

et al. 2018

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“…Ongoing developments have focused on engineering new OCT systems to increase the speed of OCT acquisition (e.g., within a single cardiac cycle with full sampling both cross-sectionally and longitudinally) 111 , spatial resolution (e.g., "micro OCT" with ~2 μm isotropic resolution, capable of identifying cellular [macrophages, endothelial cells] and sub-cellular [extracellular cholesterol crystals] structures 112 ), and penetration depth. Further studies are needed to validate these new advances and their putative clinical impact.…”

Section: Oct In Progress and Future Iterationsmentioning

confidence: 99%

Intracoronary optical coherence tomography: state of the art and future directions

Ali¹,

Galougahi²,

Mintz³

et al. 2021

EuroIntervention

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Optical coherence tomography (OCT) has been increasingly utilised to guide percutaneous coronary intervention (PCI). Despite the diagnostic utility of OCT, facilitated by its high resolution, the impact of intracoronary OCT on clinical practice has thus far been limited. Difficulty in transitioning from intravascular ultrasound (IVUS), complex image interpretation, lack of a standardised algorithm for PCI guidance, and paucity of data from prospective clinical trials have contributed to the modest adoption. Herein, we provide a comprehensive up-do-date overview on the utility of OCT in coronary artery disease, including technical details, device set-up, simplified OCT image interpretation, recognition of the imaging artefacts, and an algorithmic approach for using OCT in PCI guidance. We discuss the utility of OCT in acute coronary syndromes, provide a summary of the clinical trial data, list the work in progress, and discuss the future directions. KEYWORDS• ACS/NSTE-ACS • intravascular ultrasound • optical coherence tomography EuroIntervention 2021;17:e105-e123 e 106 Abbreviations ACS acute coronary syndromes BOOM bifurcation and ostial optical coherence tomography mapping DES drug-eluting stents IVUS intravascular ultrasound MI myocardial infarction MINOCA myocardial infarction with non-obstructive coronary arteries MLA minimal lumen area MLD MAX morphology, length, diameter, medial dissection, apposition, expansion MSA minimal stent area NSTEACS non-ST-segment elevation acute coronary syndromes NURD non-uniform rotational distortion OCT optical coherence tomography OFR optical flow ratio PCI percutaneous coronary intervention STEMI ST-segment elevation myocardial infarction TCFA thin-cap fibroatheroma

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“…The optimal κ depends on the acquisition, the pullback velocity, and the SNR, which are case-dependent. Recent findings on OCT techniques resort to high sampling rates [15,28], which may be well corresponded by isotropic mismatch measures (κ = 1). However, for current commercial solutions, an anisotropic metric seems more appropriate.…”

Section: Skeletonizationmentioning

confidence: 99%

Semi-Automatic Reconstruction of Patient-Specific Stented Coronaries based on Data Assimilation and Computer Aided Design

Lefieux

Bridio

Molony

et al. 2022

Cardiovasc Eng Tech

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ECG-Triggered, Single Cardiac Cycle, High-Speed, 3D, Intracoronary OCT

Cited by 11 publications

References 3 publications

3D reconstruction of coronary arteries from 2D angiographic projections using non-uniform rational basis splines (NURBS) for accurate modelling of coronary stenoses

3D reconstruction of coronary arteries from 2D angiographic projections using non-uniform rational basis splines (NURBS) for accurate modelling of coronary stenoses

Intracoronary optical coherence tomography: state of the art and future directions

Semi-Automatic Reconstruction of Patient-Specific Stented Coronaries based on Data Assimilation and Computer Aided Design

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