REAL -TIME WAVELET-BASED ALGORITHM FOR CARDIAC AND RESPIRATORY MRI GATING - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2005

REAL -TIME WAVELET-BASED ALGORITHM FOR CARDIAC AND RESPIRATORY MRI GATING

Résumé

A real time algorithm for cardiac and respiratory gating, which only requires an ECG sensor, is proposed here. Three ECG electrodes are placed in such a manner that the modulation of the recorded ECG by the respiratory signal would be maximal; hence, given only one signal we can achieve both cardiac and respiratory MRI gating. First, an off-line learning phase based on wavelet decomposition is run to compute an optimal QRS filter. Afterwards, on one hand the QRS filter is used to accomplish R peak detection, and on the other, a low pass filtering process allows the retrieval of the respiration cycle so that the image acquisition sequences would be triggered by the R peaks only during the expiration phase.
Fichier principal
Vignette du fichier
REAL -TIME WAVELET-BASED ALGORITHM.pdf (311.11 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01084363 , version 1 (19-11-2014)

Identifiants

  • HAL Id : hal-01084363 , version 1

Citer

D Abi-Abdallah, Agnès Drochon, V Robin, O Fokapu. REAL -TIME WAVELET-BASED ALGORITHM FOR CARDIAC AND RESPIRATORY MRI GATING. IFMBE Proceedings of the 3rd European Medical & Biological Engineering Conference, Nov 2005, Prague, Czech Republic. ⟨hal-01084363⟩
24 Consultations
127 Téléchargements

Partager

Gmail Facebook X LinkedIn More