Swift Medical Inc., Toronto, ON, Canada.
Department of Physics, Ryerson University, Toronto, ON, Canada.
Adv Exp Med Biol. 2021;1269:393-397. doi: 10.1007/978-3-030-48238-1_62.
Pulse wave velocity imaging (PWVi) is a novel technology developed by our group for real-time assessment of ischemia. The objectives of this proof-of-concept study included (1) remote detection of blood flow pulse and (2) assessing the feasibility of pulse wave velocity (PWV) imaging.
PWVi is based on a 12-bit RGB camera (Basler acA-2000-165uc) capturing videos at up to 1000 fps. Videos of the hands of healthy individuals were taken, segmented, and processed to assess pulse wave velocity (PWV) and photoplethysmographic (PPG) signals.
PWV and PPG waveforms were readily collected for multiple segments. The PWVi device performed well, even without an external source of illumination. Mean PWV of 341.3 (±151.0) cm/s was obtained.
PWVi is a portable, accessible, and cost-effective technology for assessing physiological parameters remotely.
脉搏波速度成像（PWVi）是我们小组开发的一项新技术，用于实时评估缺血情况。本概念验证研究的目的包括（1）远程检测血流脉冲，（2）评估脉搏波速度（PWV）成像的可行性。
PWVi 基于 12 位 RGB 相机（Basler acA-2000-165uc），最高可拍摄 1000 fps 的视频。对健康个体的手部进行视频拍摄、分割和处理，以评估脉搏波速度（PWV）和光体积描记图（PPG）信号。
可以轻松地为多个片段采集 PWV 和 PPG 波形。PWVi 设备表现良好，即使没有外部照明源也是如此。获得的平均 PWV 为 341.3（±151.0）cm/s。
PWVi 是一种用于远程评估生理参数的便携式、可及且具有成本效益的技术。
