我们研发了一种新型的血管内光学相干成像术（IV-OCT），该技术能极其快速地实现冠状动脉成像，并通过消除心脏运动伪影和欠采样以实现图像的更高质量。它所依赖的成像探头包括一个直径为1.0 mm 且转速为5600 rev·s^–1的同步微电机，使IV-OCT 的帧频达到5.6 kHz，并使用每秒产生280 万图像扫描线的波长扫描激光器。通过使用该设备，我们团队在设置速度为100 mm·s^–1时实现了体外5600 fps 和体内4000 fps 的成像速度。由实验对象的心电图触发整个图像采集过程，当心脏在跳动过程中相对不强烈时扫描冠状动脉，因此该技术还有一个新名字，"心动光学相干成像术"（Heartbeat OCT）。

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."