The Inverse ECG problem is ill-conditioned and its solution requires a relatively high computing effort. Additional constraints are required in order to obtain a stable solution. A method is proposed in which the solution of the inverse ECG problem is approached in the frequency domain, taking advantage of the assumption that propagation delays may be ignored and the quasi-periodicity of ECG. In this method usual Tikhonov zero-order constraints are applied to the amplitudes of the signals for a selected frequency domain. This method ensures faster solutions that are spatially and temporally well behaved. Calculation of epicardial electrograms is compared to a basic method.
|Title of host publication||Unknown Host Publication|
|Number of pages||6|
|Publication status||Published - 15 Jul 2005|
|Event||18th IEEE Symposium on Computer-Based Medical Systems; Dublin - Dublin, Ireland|
Duration: 15 Jul 2005 → …
|Conference||18th IEEE Symposium on Computer-Based Medical Systems; Dublin|
|Period||15/07/05 → …|
- inverse problems
- medical signal processing
- Tikhonov zero-order
- epicardial electrogram
- frequency domain
- inverse ECG problem
- Frequency domain analysis.