TY - JOUR 
A1 - Martínez Cabeza De Vaca Alajarín, Juan de la Cruz
AU - López Alcantud, José Alejandro
AU - Ruiz Merino, Ramón Jesús
T1 - ASEPTIC: Aided System for Event-Based Phonocardiographic Telediagnosis with Integrated Compression
Y1 - 2006
UR - http://hdl.handle.net/10317/1400
AB - A general purpose system for telediagnosis of the valvular condition of the heart by analysing the phonocardiographic (PCG) signals generated by the heart is presented in this article. The system includes two main parts: a processing stage and a compression stage. The first one is arranged as a modular hierarchical structure with different abstraction levels, and performs a complete analysis of the PCG from the acquisition to the final diagnosis, following an event-based methodology. Analysis does not use auxiliary signals like ECG or pulse. The compression stage includes a lossy compression wavelet-based method with optimized parameters for an efficient transmission and storing of PCG signals. Results show a high degree of cardiac cycles in which all the events have been correctly delimited and identified, 91.27% and 65.65% for non-murmurs and for murmurs recordings, respectively, and compression rates between 2.6 and 5.6 times higher than the OGG Vorbis compression method.
KW - Electrónica
KW - ASEPTIC
KW - Ecocardiografía
KW - Procesamiento de señales médicas
KW - Diagnóstico del paciente
KW - Transmisión de la señal PCG
KW - Cardiac cycles
KW - Telediagnóstico fonocardiográfico
KW - Echocardiography
KW - Medical signal processing
KW - Patient diagnosis
KW - PCG signal transmission
KW - Phonocardiographic telediagnosis
LA - eng
PB - IEEE Engineering in Medicine and Biology Society
ER -