Computer-aided oesophageal manometry: prospects and problems

We describe a method in which computer-aided analysis has been applied to oesophageal manometry, and address some of the major problems which were encountered. The elimination of pressure artefacts caused by respiration and normal cardiac function is necessary in order to define accurately the parameters required from the analysis. The most promising method of solving this signal/noise problem is to include a fast Fourier transform in the analytical program.