July 1, 1997Artificial Organs
Flow Measurement at the Pump Head of Centrifugal Pumps: Comparison of Ultrasonic Transit Time and Ultrasonic Doppler Systems
Why the study?
Does an ultrasound transit time (USTT) flow probe improve the accuracy of blood flow measurement at the pump head of centrifugal pumps compared to US-Doppler and electromagnetic systems?
Population
Centrifugal blood pumps (in vitro and in vivo models)
Comparison
Specially adapted flow probe based on the… vs Ultrasound Doppler systems and electromagnetic…
Design
Preclinical
Authors
Discussion
Loading...
Member takes
Implication
May enable precise centrifugal pump flow monitoring in MCS; leaves open clinical adoption pending in vivo validation.
Structured PICO
Does an ultrasound transit time (USTT) flow probe improve the accuracy of blood flow measurement at the pump head of centrifugal pumps compared to US-Doppler and electromagnetic systems?
P
Population
Centrifugal blood pumps (in vitro and in vivo models)
I
Intervention
Specially adapted flow probe based on the ultrasound transit time (USTT) principle
C
Comparator
Ultrasound Doppler systems and electromagnetic devices
O
Outcome
Accuracy of blood flow measurement directly adjacent to the pump housingsurrogate
A specially adapted ultrasound transit time flow probe provides accurate blood flow measurements directly at the centrifugal pump housing, overcoming the limitations of Doppler and electromagnetic systems caused by high vorticity.
Limitations
- Output signal contained considerable noise requiring a 10 Hz filter
Cite This Study
Schima et al. (1997) studied this question.