Key result
A miniature conductance catheter reliably monitored right ventricular volume changes in rabbit hearts, with measured conductance highly correlated with reference volumes (r=0.991 to 0.999).
Population
11 New Zealand rabbit hearts (5 excised, 6 in thorax)
Comparison
Miniature six-electrode conductance catheter vs Reference volumes and electromagnetic flow…
Design
Preclinical
Authors
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Supports RV volumetry feasibility in small-animal models; leaves open translation to larger species or clinical use.
Effect estimate: r=0.991 to 0.999
A miniature conductance catheter can reliably monitor in vivo relative right ventricular volume changes in small-animal hearts.
Soldà et al. (1992) studied Right ventricular volume changes assessment (n=11). Miniature (3.5F) six-electrode conductance catheter vs. Reference volumes and electromagnetic flow probe-derived estimates was evaluated on Correlation of measured conductance vs. reference volumes (r=0.991 to 0.999). A miniature conductance catheter reliably monitored right ventricular volume changes in rabbit hearts, with measured conductance highly correlated with reference volumes (r=0.991 to 0.999).
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