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US 10,588,577 B2Granted
Patient signal analysis based on affine template matching
AssigneeSiemens Healthcare GmbH
InventorHongxuan Zhang
Life of this patent
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Abstract
Disclosed herein is a framework for facilitating patient signal analysis. In accordance with one aspect, the framework performs affine template matching of a region of interest from patient signal data with a baseline signal portion by performing an affine waveform transformation of the region of interest. One or more affine ratios may be determined based on the matched region of interest and the baseline signal portion for generating a report or diagnosis of a cardiac event.
Claims19
A system for patient signal analysis, comprising:
- a non-transitory memory device;
- a processor device in communication with the memory device;
- and
- a signal analysis unit stored in the memory device and operative with the processor device to perform steps including
- receiving hemodynamic patient signal data acquired from a patient,
- extracting a region of interest from the hemodynamic patient signal data,
- performing affine template matching of the region of interest with a baseline signal portion by performing an affine waveform transformation of the region of interest,
- determining one or more affine ratios based on the matched region of interest and the baseline signal portion, wherein each of the one or more affine ratios quantitatively characterizes a difference between the matched region of interest and the baseline signal portion, wherein the difference quantifies a cardiac pathology,
- wherein determining the one or more affine ratios comprises determining an affine amplitude ratio in response to time durations of the matched region of interest and the baseline signal portion being similar,
- wherein determining the one or more affine ratios comprises determining an affine timing ratio in response to amplitudes at a key point of the matched region of interest and the baseline signal portion being similar, and
- controlling a medical treatment device based at least in part on the one or more affine ratios.
8 more elements
A method of patient signal analysis, comprising:
- receiving, from a patient monitor, patient signal data;
- extracting, by a processor device, a region of interest from the patient signal data;
- performing, by the processor device, affine template matching of the region of interest with a baseline signal portion by performing an affine waveform transformation of the region of interest;
- determining, by the processor device, one or more affine ratios based on the matched region of interest and the baseline signal portion, wherein each of the one or more affine ratios quantitatively characterizes a difference between the matched region of interest and the baseline signal portion, wherein the difference quantifies a cardiac pathology,
- wherein determining the one or more affine ratios comprises determining an affine amplitude ratio in response to time durations of the matched region of interest and the baseline signal portion being similar,
- wherein determining the one or more affine ratios comprises determining an affine timing ratio in response to amplitudes at a key point of the matched region of interest and the baseline signal portion being similar;
- and
- controlling, by the processor device, a medical treatment device based at least in part on the one or more affine ratios.
5 more elements
A non-transitory computer readable medium embodying a program of instructions executable by machine to perform steps for patient signal analysis, the steps comprising:
- receiving, from a patient monitor, patient signal data;
- extracting, by a processor device, a region of interest from the patient signal data;
- performing, by the processor device, affine template matching of the region of interest with a baseline signal portion by performing an affine waveform transformation of the region of interest;
- determining, by the processor device, one or more affine ratios based on the matched region of interest and the baseline signal portion, wherein each of the one or more affine ratios quantitatively characterizes a difference between the matched region of interest and the baseline signal portion, wherein the difference quantifies a cardiac pathology,
- wherein determining the one or more affine ratios comprises determining an affine amplitude ratio in response to time durations of the matched region of interest and the baseline signal portion being similar,
- wherein determining the one or more affine ratios comprises determining an affine timing ratio in response to amplitudes at a key point of the matched region of interest and the baseline signal portion being similar;
- and
- controlling a medical treatment device based at least in part on the one or more affine ratios.
5 more elements
Dependencies are inferred from the claim text.