A Novel Wireless Photoplethysmography Blood-Flow Volume Sensor for Assessing Arteriovenous Fistula of Hemodialysis Patients

作者：Chiang Pei Yu; Chao Paul C P^*; Tarng Der Cherng; Yang Chih Yu

来源：IEEE Transactions on Industrial Electronics, 2017, 64(12): 9626-9635.

DOI：10.1109/TIE.2017.2701780

• Arteriovenous fistula (AVF)
• blood-flow volume (BFV)
• photoplethysmography (PPG) sensor

A novel blood-flow volume (BFV) sensor is presented for assessing quality of arteriovenous fistula in hemodialysis patients via noninvasive reflectance-type photoplethysmography (PPG). BFV is nowadays in clinic practices evaluated using an ultrasound Doppler monitor, which is expensive, bulky, and can only be operated by well-trained medical personnels. This study is devoted to develop a low-cost, small-sized, portable, and easy-to-use PPG sensor that is capable of continuous measurement of BFV. New designs of front-end analog circuits, signal processing, and an intelligent neural network calibration method are employed to finally achieve high correlation (R-2 = 0.7176), as opposed to the ultrasound Doppler monitor, with the root-mean-squared errors successfully controlled under 289 ml/min.

• 出版日期2017-12