首页|A Micromotor Catheter for Intravascular Optical Coherence Tomography

A Micromotor Catheter for Intravascular Optical Coherence Tomography

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We have developed a new form of intravascular optical coherence tomography (IV-OCT) that allows the extremely fast acquisition of high-resolution images of the coronary arteries.This process leads to much better image quality by eliminating cardiac motion artefacts and undersampling.It relies on a catheter that incorporates a synchronous micromotor with a diameter of 1.0 mm and a rotational speed of up to 5600 revolutions per second, enabling an IV-OCT frame rate of 5.6 kHz.This speed is matched by a wavelength-swept laser that generates up to 2.8 million image lines per second.With this setup, our team achieved IV-OCT imaging of up to 5600 frames per second (fps) in vitro and 4000 fps in vivo, deployed at a 100 mm·s-1 pullback velocity.The imaging session is triggered by the electrocardiogram of the subject, and can scan a coronary artery in the phase of the heartbeat where the heart is at rest, providing a name for this new technology: the "Heartbeat OCT."

Tianshi Wang、Gijs van Soest、Antonius F.W.van der Steen

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Department of Biomedical Engineering, Thoraxcenter, Erasmus MC, Rotterdam 3000 DR, the Netherlands

Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China

Department of Imaging Physics and Technology, Delft University of Technology, Delft 2600 AA, the Netherlands

2015

10.15302/J-ENG-2015018

工程科学(英文版)
中国工程院出版委员会

工程科学(英文版)

影响因子：0.226
ISSN：1672-4178
年,卷(期)：2015.1(1)
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