Development of ultrasound-based monitor of relative blood volume / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 1204-1208, 2013.
Article
in Chinese
| WPRIM
| ID: wpr-259739
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Ultrasonics
/
Blood Volume
/
Body Weight
/
Renal Dialysis
/
Monitoring, Physiologic
Limits:
Humans
Language:
Chinese
Journal:
Journal of Biomedical Engineering
Year:
2013
Type:
Article
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