Instantaneous measurement of left and right ventricular stroke volume and pressure-volume relationships with an impedance catheter.

@article{Mckay1984InstantaneousMO,
  title={Instantaneous measurement of left and right ventricular stroke volume and pressure-volume relationships with an impedance catheter.},
  author={R G Mckay and James Richard Spears and J M Aroesty and Donald S. Baim and H. D. Royal and Gary Vashon Heller and W C Lincoln and Rodney W. Salo and Eugene Braunwald and William M. Grossman},
  journal={Circulation},
  year={1984},
  volume={69 4},
  pages={703-10}
}
The feasibility of using continuous on-line recording of intraventricular electrical impedance to measure ventricular stroke volume was assessed in 12 patients at cardiac catheterization with a multielectrode impedance catheter and a 1.3 kHz measuring current of 4 microA. Stroke volumes determined by electrical impedance were compared with stroke volumes determined by the thermodilution technique in 10 patients and correlated with an r value of .95. Directional changes in impedance recordings… CONTINUE READING

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Intracardiac plethysmography

RF Rushmer, DK Crystal, RM Ellis
Am J Physiol 174: • 1953

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