Cardiac chemical power: 2 Application of chemical power, work and efficiency equations to characterise left ventricular energetics in man

@article{Phillips1979CardiacCP,
  title={Cardiac chemical power: 2 Application of chemical power, work and efficiency equations to characterise left ventricular energetics in man},
  author={Chandler A. Phillips and William J. Scott and Edward S. Grood and Jerrold Scott Petrofsky},
  journal={Medical and Biological Engineering and Computing},
  year={1979},
  volume={17},
  pages={510-517}
}
Thirty patients have been evaluated using single-plane left ventricular cineangiography and the contractile filament stress history, contractile element velocity history, and extrapolated Vmax were obtained. Peak chemical power ( $$\widehat{CP}_\theta ,\widehat{CP}_\phi $$ ), endcycle chemical work ( $$\widehat{CW}_\theta ,\widehat{CW}_\phi $$ ) and average efficiency ( $$\bar \eta _\theta ,\bar \eta _\phi $$ ) for the circumferential (θ) and longitudinal (ϕ) directions were computed. For 11… CONTINUE READING