P Wave Delineation Using Spatially Projected Leads From Wavelet Transform Loops

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2010

Autores

Almeida, R (Autor) Outra; Martinez, JP (Autor) Outra; Rocha, AP (Autor) FCUP; Laguna, P (Autor) Outra

Ata de Conferência Internacional

Título: COMPUTING IN CARDIOLOGY 2010, VOL 37

Páginas: 1003-1006

37th Annual Conference of the Computing-in-Cardiology

Belfast, NORTH IRELAND, SEP 26-29, 2010

Indexação

ISI Web of Knowledge - 3 Citações

Scopus - 5 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Biotecnologia ambiental

Outras Informações

ID Authenticus: P-007-Y11

Abstract (EN): A previously proposed automatic delineation strategy for multilead (ML) location of wave boundaries is now extended to P wave boundaries. The method obtains a transformed lead by projecting the wavelet transform spatial loop into a direction that optimizes the SNR. The performance was compared with single lead delineation (SL) and with the global marks obtained by post- processing rules (SLR) calculating the Sensitivity, mean and standard deviation [S(%), m +/- s (ms)] respectively for onset| end location errors. Validation is performed over CSE database files obtaining, using 3D loops [100,- 10.2 +/- 15.0] | [100, 7.8 +/- 14.2], and using 2D loops [96,- 2.4 +/- 7.4] | [96, 5.9 +/- 7.0]. SLR achieved [85, 2.1 +/- 5.6] | [89, 1.8 +/- 6.7], with SL producing always higher s values in one or both boundaries. We conclude that ML strategy is appropriate for P wave delineation, with higher S that SLR, and 2D loops are sufficient, allowing a more efficient processing when compared to SLR.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4