The invention provides a method and system for reconstructing a high-fidelity pressure waveform with a balloon catheter used in a heart. First, a balloon catheter having an air line is inserted into the aorta of the heart. The air line is then closed and sufficient air is introduced in order to equalize...http://www.google.com/patents/US6398738?utm_source=gb-gplus-sharePatent US6398738 - Method and apparatus for reconstructing a high fidelity pressure waveform with a balloon catheter
