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US 2006/0079783 A1Published application
Method and system for deriving a fetal heart rate without the use of an electrocardiogram in non-3D imaging applications
OwnerDavid Clarkinventor
Life of this patent
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Abstract
A system and method are provided for determining a fetal heart rate from ultrasound imaging data in near real-time. The heart rate is determined by analyzing spatial points on ultrasound cardiac volumes and calculating the peak spectral frequency of the changes in ultrasonic characteristics of the spatial points.
Claims8
A method for determining a heart rate from a set of ultrasound images comprising the steps of:
- acquiring a set of ultrasound images at a predetermined time sampling rate;
- selecting spatial points, and mapping said spatial points on each image of said set of ultrasound images;
- processing data corresponding to each of said spatial points, said processing step being performed substantially simultaneous with said acquiring step;
- determining a spectral peak frequency for said power spectrum;
- and
- scaling said spectral peak frequency according to said predetermined time sampling rate, said scaled spectral peak frequency is said heart rate.
3 more elements
A system for determining a heart rate from a set of ultrasound images comprising:
- means for acquiring a set of ultrasound images at a predetermined time sampling rate;
- means for selecting spatial points, and mapping said spatial points on each image of said set of ultrasound images;
- means for processing data corresponding to each of said spatial points;
- means for determining a spectral peak frequency for said power spectrum;
- and
- means for scaling said spectral peak frequency according to said predetermined time sampling rate, said scaled spectral peak frequency is said heart rate.
3 more elements
Dependencies are inferred from the claim text.