Medical decision support system
US9198634B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2010 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | Jul 23, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7239
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A process for pre-processing recorded and digitized heart sounds and corresponding digitized ECG signals is provided. The pre-processed signals (203) are suitable for input into an automatic decision support system implemented by means of a diagnostic decision network (205), used for diagnosing and differentiation between normal/functional (206) and pathological (207) heart murmurs, particularly in pediatric patients. The process includes identifying or predicting locations of individual heart beats within the heart sound signal, identifying the positions of the S1 and S2 heart pulses within the respective heart beats, predicting and identifying the locations and durations of the systole and diastole segments of the heart beats (302), determining if segmentation of the heart sound signal is possible based on the selected and isolated heart beats (305), and the segmentation of the respective heart beats into segments for allowing better feature extraction. The invention also provides a process for detecting the QRS complex of an ECG signal for optimizing the number of heart beat cycles detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.