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US 7,096,061 B2Granted
Apparatus for monitoring CHF patients using bio-impedance technique
AssigneeTel Aviv University Future Technology Development L.P.
InventorShimon Arad
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Abstract
A method is described for generating an impedance image of the chest, in which electrical data of the chest is acquired, and a finite volume method is used to calculate an impedance image from the electrical data, using an analytical expression for the Jacobian.
Claims15
A method for generating an impedance image of a subject's chest, comprising:
- acquiring electrical data of the chest;
- formulating an initial impedance image;
- using a finite volume method to calculate an expected set of electrical data if the impedance distribution of the chest matched the initial impedance image;
- determining a difference between the acquired electrical data and the expected electrical data;
- and
- generating a new impedance image based on said difference;
- wherein generating a new impedance image comprises expressing a Jacobian analytically.
4 more elements
An apparatus for making impedance images of a subject's chest, comprising:
- an impedance imaging data acquisition system which acquires impedance imaging data of the chest;
- a data analyzer which reconstructs an impedance image of the chest from said impedance imaging data, using a finite volume method and an analytic Jacobian.
Dependencies are inferred from the claim text.