Key result
Dynamical models for pulsatile flow and head estimation in a rotary blood pump correlated highly with measured flows in a mock loop (R2=0.982) and ex vivo porcine data (R2=0.849).
Why the study?
Does the proposed dynamical model accurately estimate pulsatile flow and differential pressure in an implantable rotary blood pump?
Population
Circulatory mock loop and ex vivo porcine model (N=6) for testing an implantable rotary blood pump
Comparison
Dynamical models for pulsatile flow and head… vs Directly measured flows and head
Design
Preclinical
Authors
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Supports preclinical LVAD control development; leaves open human validation before clinical consideration.
Does the proposed dynamical model accurately estimate pulsatile flow and differential pressure in an implantable rotary blood pump?
Effect estimate: R2=0.982 for flow; R2=0.933 for head
The proposed dynamical models accurately estimate pulsatile flow and differential pressure in rotary blood pumps, which may aid in developing robust control systems for mechanical circulatory support in heart failure patients.
Alomari et al. (2009) studied Heart failure (n=6). Dynamical models for pulsatile flow and head estimation vs. Measured flows and head was evaluated on Correlation between estimated and measured flows and head (R2=0.982 for flow; R2=0.933 for head). Dynamical models for pulsatile flow and head estimation in a rotary blood pump correlated highly with measured flows in a mock loop (R2=0.982) and ex vivo porcine data (R2=0.849).
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