Joseph Jayaraj, Thrivikraman Arya Sree, Radhakrishnan Ravikumar, Sivaprakasam Mohanasankar
Annu Int Conf IEEE Eng Med Biol Soc. 2015 Aug;2015:3755-8. doi: 10.1109/EMBC.2015.7319210.
Arterial stiffness is recognized as an independent risk factor for cardiovascular events and has potential in vascular screening. We have developed 'ARTSENS(®)', an image free system for evaluation of vascular stiffness. Here, we present ARTSENSTouch, a portable device for evaluation of carotid artery stiffness in field settings. A technical validation of the device in comparison with reference ultrasound imaging system is presented. The validation study emulated constraints faced in evaluation of stiffness in field, such as measurement in sitting posture, use of brachial blood pressure for computations, limited time available for testing and lack of electrical power supply for instrument. The usability of the device and its accuracy, with respect to the reference ultrasound imaging system, was verified by conducting in-vivo measurements on 30 subjects. Stiffness measurements made using ARTSENS in sitting posture showed strong correlation with those obtained from the imaging system in supine posture. The repeatability of ARTSENS measurements was also found to be satisfactory.
动脉僵硬度被认为是心血管事件的独立危险因素，在血管筛查中具有应用潜力。我们开发了“ARTSENS(®)”，这是一种用于评估血管僵硬度的无图像系统。在此，我们展示ARTSENSTouch，这是一种用于在现场环境中评估颈动脉僵硬度的便携式设备。本文介绍了该设备与参考超声成像系统相比的技术验证。验证研究模拟了现场僵硬度评估中面临的限制，如坐姿测量、使用肱动脉血压进行计算、测试时间有限以及仪器缺乏电源供应。通过对30名受试者进行体内测量，验证了该设备相对于参考超声成像系统的可用性及其准确性。使用ARTSENS在坐姿下进行的僵硬度测量与在仰卧姿势下从成像系统获得的测量结果显示出很强的相关性。还发现ARTSENS测量的重复性令人满意。
