PCT No. PCT/GB94/01117 Sec. 371 Date Jan. 30, 1996 Sec. 102(e) Date Jan. 30, 1996 PCT Filed May 20, 1994 PCT Pub. No. WO94/28494 PCT Pub. Date Dec. 8, 1994A method and apparatus of analysing Ventricular Late Potential (VLP) including determining a parameter related to the complexity of the VLP as a parameter for clinical evaluation. The method may include computing the fractal dimension of the attractor for the VLP as a parameter for clinical evaluation. The method may include performing a spectral analysis producing an assessment based on a discrete Hartley transform (DHT) vector spectrum by summing amplitude components between -f1 to -f2 and +f2 to +f1, where f1 is a number larger than f2.
Analysis of heart waveforms