title: [Development of ultrasound-based monitor of relative blood volume].
abstract: Assessing dry weight accurately is crucial in providing effective and safe haemodialysis. Biases towards dry weight assessment may bring a series of dialysis complications. This study introduces an online detection technique of relative blood volume (RBV) based on ultrasound, which analyzes the correlation between changes in blood density and sound speed. By measuring the attenuation in sound velocity, this method was employed to calculate RBV, and then to evaluate the dry weight of patients on dialysis. TDC-GP2 time measurement chip and MSP430 Single-chip Microcontroller (SCM) were used in the system to measure the ultrasonic travel time. In the clinical trials, RBV values range between 71.3% and 108.1%, showing consistent result with Fresenius 4008S blood volume monitor (BVM). This detection method possesses several advantages, such as real time, convenient, reproducible, non-invasive, and etc.
authors.forename: Shunzhong
authors.initials: S
authors.lastname: Jiang
authors.forename: Xiao
authors.initials: X
authors.lastname: Hu
authors.forename: Zhongwei
authors.initials: Z
authors.lastname: Liang
authors.forename: Jianghong
authors.initials: J
authors.lastname: Fan
authors.forename: Wubing
authors.initials: W
authors.lastname: Xia
authors.forename: Hongbo
authors.initials: H
authors.lastname: Zhou
authors.forename: Wei
authors.initials: W
authors.lastname: Yi
mesh_terms: D001810:Blood Volume; D001835:Body Weight; D006801:Humans; D008991:Monitoring, Physiologic; D006435:Renal Dialysis; D014465:Ultrasonics