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US 6,308,097 B1Granted
Tissue characterization based on impedance images and on impedance measurements
AssigneeTransScan Medical Ltd.
InventorAndrew L. Pearlman
Life of this patent
Estimating the term…
Abstract
Apparatus for aiding in the identification of tissue type for an anomalous tissue in an impedance image comprising: means for providing an polychromic immitance map of a portion of the body; means for determining a plurality of polychromic measures from one or both of a portion of the body; and a display which displays an indication based on said plurality of polychromic measures.
Claims60
Apparatus for impedance imaging or a region of a subject, comprising:
- a first, multi-element, probe comprising a plurality of sensing elements and adapted for mounting on a first side of the region;
- a second probe, including one or more sensing elements, adapted for mounting on a surface of the subject;
- and
- a controller which generates at least one impedance image, including a plurality of pixels, based on signals sensed by at least some of the sensing elements of the first probe and at least one of the one or more sensing elements of the second probe.
1 more element
A method of impedance imaging a body region of a subject, comprising:
- positioning a first, multi-element, probe, comprising a first plurality of sensing elements, on a first side of the region;
- positioning a second probe, comprising one or more second sensing elements, on a surface of the subject;
- and
- generating at least one impedance image based on signals sensed by at least some of the first elements and by at least one of the one or more elements of the second probe, while the first and second probes are not moved from their positions.
1 more element
A method of impedance imaging of a body region of a subject, comprising:
- positioning at least one multi-element probe, on at least one respective surface of the region;
- sensing signals from elements of the at least one multi-element probe;
- generating at least one impedance map based on signals sensed by the at least one multi-element probe;
- identifying an anomaly on the at least one impedance map;
- and
- determining a depth of the anomaly beneath the at least one probe responsive to the at least one map.
3 more elements
A method of impedance imaging of a body region of a subject, comprising:
- positioning a first multi-element probe, comprising a first plurality of elements, on one side of the region;
- positioning a second multi-element probe, comprising a second plurality of elements, on a second side of the region;
- electrifying a first group, including a first number, of elements of the first or second probe;
- sensing signals induced in the region responsive to the electrified elements of the first group, from a second group of elements of the first or second probe, wherein the second group includes a second number of elements greater than the first number;
- and
- generating an impedance map responsive to signals sensed by the second group of elements.
3 more elements
A method of impedance imaging of a region, comprising:
- positioning a multi-element probe, comprising a plurality of sensing elements, on one side of the region;
- providing electrifying signals to the region from one or more first locations;
- measuring first signals at at least some of the elements of the multi-element probe responsive to the signals from the one or more first locations;
- generating a first image of the region responsive to the measured first signals;
- providing electrifying signals to the region from one or more second locations different from the first locations;
- measuring second signals at at least some of the elements of the multi-element probe responsive to the signal from the one or more second locations;
- and
- generating a second image of the region responsive to the measured second signals,
- wherein the first and second images are generated while the multi-element probe is in substantially the same position.
6 more elements
Apparatus for impedance imaging of a region within a body, comprising:
- a first multi-element probe, comprising a plurality of sensing elements, for positioning on one side of the region;
- a second multi-element probe for positioning on a second side of the region and for generating signals to be sensed by the first multi-element probe;
- and
- a controller which electrifies a first group, including a first number, of elements of the second multi-element probe and generates a map responsive to signals sensed by a second group, including a second number greater than the first number, of sensing elements of the first probe.
1 more element
Apparatus for impedance imaging of a region of a body, comprising:
- a multi-element probe comprising a plurality of sensing elements and adapted for mounting on a first surface of the body, located on a side of the body region;
- a first electrode adapted for mounting on a second surface of the body;
- a second electrode for mounting on a third surface of the body;
- a source of electrical energy which provides an electrical signal at least to the first electrode;
- and
- a controller which senses signals, induced by the source of electrical energy, at least from the second electrode and one or more of the elements of the probe.
3 more elements
A method of impedance imaging of a body region of a subject, comprising:
- acquiring one or more electrical measurements at each of a plurality of surface points on the body region;
- calculating for each of the points a frequency representative of the point, responsive to the one or more measurements at the point;
- and
- displaying a map which has at each point a value which is a function of the calculated frequency of the point.
1 more element
Dependencies are inferred from the claim text.