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  5. Second-Generation Optical Coherence Tomography in Clinical Practice. High-Speed Data Acquisition is Highly Reproducible in Patients Undergoing Percutaneous Coronary Intervention

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Article
Spanish; Castilian
2010

Second-Generation Optical Coherence Tomography in Clinical Practice. High-Speed Data Acquisition is Highly Reproducible in Patients Undergoing Percutaneous Coronary Intervention

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Spanish; Castilian
2010
Revista Española de Cardiología (English Edition)
Vol 63 (8)
DOI: 10.1016/s1885-5857(10)70183-3

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Patrick W. Serruys
Patrick W. Serruys

Imperial College London

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Nieves Gonzalo
Guillermo J. Tearney
Patrick W. Serruys
+8 more

Abstract

Introduction and objectives The development of second-generation optical coherence tomography (i.e. Fourier domain optical coherence tomography, FD-OCT) has made it possible to perform high speed pull-backs during image acquisition without the need for transient occlusion of the coronary artery. The objective of this study was to assess the reproducibility of FD-OCT systems for characterizing plaque and evaluating stent implantation in patients undergoing a percutaneous coronary intervention. Methods The study included 45 patients scheduled for percutaneous coronary intervention who were enrolled between May and December 2008. Image acquisition was performed by FD-OCT using a non-occlusive technique and employing pull-back speeds ranging from 5 to 20 mm/s. Interstudy, interobserver and intraobserver reproducibility of plaque characterization and stent analysis were assessed. Results Fourier domain imaging was successfully performed in all patients (n=45). The average flush rate was 3±0.4 mL/s and the contrast volume per pull-back was 16.1±3.5 mL. The mean pull-back duration and length were 3.2±1.2 s and 53.3±12.4 mm, respectively. The interstudy reproducibility for visualizing edge dissection, tissue prolapse, intrastent dissection and malapposition was excellent (κ=1). The kappa values for interstudy, interobserver and intraobserver agreement on plaque characterization were 0.92, 0.82 and 0.95, respectively. Conclusions A second-generation OCT system (i.e. FD-OCT) involving high-speed data acquisition demonstrated good interstudy, interobserver and intraobserver reproducibility for characterizing plaque and evaluating stent implantation in patients undergoing a percutaneous coronary intervention. Introducción y objetivos Se ha desarrollado una segunda generación de sistemas de tomografía de coherencia óptica (OCT) (dominio de Fourier, OCT-DF) que permiten las retiradas a alta velocidad sin necesidad de ocluir transitoriamente la arteria coronaria durante la obtención de imágenes. El objetivo de este estudio es evaluar la reproducibilidad de los sistemas de OCT-DF para la caracterización de la placa y la evaluación de la implantación del stent en pacientes a los que se practican intervenciones coronarias percutáneas. Métodos Entre mayo y diciembre de 2008, se incluyó en el estudio a 45 pacientes para los que se había programado una intervención coronaria percutánea. La adquisición de la OCT-DF se realizó con una técnica no oclusiva con velocidades de retirada de entre 5 y 20 mm/s. Se evaluó la reproducibilidad entre estudios, entre observadores y en el observador para la caracterización de la placa y el análisis de los stents. Resultados La obtención de imágenes de dominio de Fourier se realizó satisfactoriamente en todos los pacientes (n = 45). El ritmo de infusión medio fue de 3 ± 0,4 ml/s y el volumen de contraste por retirada, 16,1 ± 3,5 ml. La media de duración y longitud de la retirada fue de 3,2 ± 1,2 s y 53,3 ± 12,4 mm. La reproducibilidad entre estudios, en cuanto a la visualización de la disección del borde, el prolapso tisular, la disección en el stent y la mala aposición, fue excelente (κ = 1). Los valores de kappa para la coincidencia entre estudios, entre observadores y en el observador en la caracterización de la placa fueron 0,92, 0,82 y 0,95 respectivamente. Conclusiones La tecnología de OCT de segunda generación, que obtiene datos a alta velocidad, muestra buena reproducibilidad entre estudios, entre observadores y en el observador para la caracterización de la placa y evaluar la implantación del stent en pacientes a los que se practican intervenciones coronarias percutáneas.

How to cite this publication

Nieves Gonzalo, Guillermo J. Tearney, Patrick W. Serruys, Gijs van Soest, Takayuki Okamura, Héctor M. García‐García, Robert‐Jan van Geuns, Martin van der Ent, Jürgen Ligthart, Brett E. Boum, Evelyn Regar (2010). Second-Generation Optical Coherence Tomography in Clinical Practice. High-Speed Data Acquisition is Highly Reproducible in Patients Undergoing Percutaneous Coronary Intervention. Revista Española de Cardiología (English Edition), 63(8), pp. 893-903, DOI: 10.1016/s1885-5857(10)70183-3.

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Publication Details

Type

Article

Year

2010

Authors

11

Datasets

0

Total Files

0

Language

Spanish; Castilian

Journal

Revista Española de Cardiología (English Edition)

DOI

10.1016/s1885-5857(10)70183-3

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