Utilization of regression analysis for conductance catheters:Considerable improvement in volume estimation


Journal Article

© 1992 IEEE. Error in a simulated conductance catheter volume system was reduced over 60% by statistically incorporating a priori information through training. The conventional deterministic model uses a specific cylindrical geometry but does not otherwise incorporate the relationship between potentials and volume. The statistical model uses a weighted sum of inverse differences of potentials, the weights determined through training. With a 288 point set of volume/potential training data a mean absolute root-mean-square error of 2.44% was obtained, while the conventional method gave 17.5% error. The conventional method underestimated the volume and exhibited an offset due to violations of the cylindrical model assumptions. The regression method yielded a substantial improvement in performance.

Full Text

Duke Authors

Cited Authors

  • Davis, JW; Glower, DD; Pilkington, TC

Published Date

  • January 1, 1992

Published In

  • Proceedings Computers in Cardiology, Cic 1992

Start / End Page

  • 715 - 718

Digital Object Identifier (DOI)

  • 10.1109/CIC.1992.269333

Citation Source

  • Scopus