Methods for assessing health conditions using single coil magnetic induction tomography imaging

Patent metadata

Field	Value
Publication number	US-10278609-B2
Application number	US-201615137581-A
Country	US
Kind code	B2
Filing date	Apr 25, 2016
Priority date	Feb 27, 2014
Publication date	May 7, 2019
Grant date	May 7, 2019

Abstract

Methods for assessing a health condition of an individual using single coil magnetic induction tomography imaging are provided. A target area for medical imaging on a patient can be identified. A plurality of coil property measurements can be obtained using a single coil. The plurality of coil property measurements can be performed with the single coil at a plurality of discrete locations relative to the target area. The coil property measurements can be processed to generate an image of the conductivity distribution of the target area. The image can be analyzed to assess a health condition of the patient.

First claim

What is claimed is:

1. A method for generating an electrical property distribution map for a specimen, the method comprising:
accessing, by one or more processors, a plurality of coil property measurements of a target area using a magnetic induction tomography device, the magnetic induction tomography device comprising single coil, the plurality of coil property measurements being performed with the single coil at a plurality of discrete locations relative to the target area;
generating, by the one or more processors, an image of an electrical property distribution of the target area using a model defining a relationship between coil property measurements obtained by the single coil at a plurality of different positions relative to the target area and a conductivity of the target area; and
outputting, by the one or more processors, the image for display on a display device.

2. The method of claim 1 , wherein the electrical property distribution comprises a conductivity distribution.

3. The method of claim 1 , wherein the electrical property distribution comprises a permittivity distribution.

4. The method of claim 1 , wherein the target area comprises tissue.

5. The method of claim 4 , wherein the target area comprises human tissue.

6. The method of claim 1 , wherein the coil property measurement comprises a coil loss measurement indicative of a change in impedance of the single coil resulting from eddy currents induced in the target area when the single coil is placed adjacent to the target area and energized with radio frequency energy.

7. The method of claim 1 , wherein the plurality of coil property measurements are obtained using a hand held magnetic induction tomography device.

8. The method of claim 7 , wherein the plurality of coil property measurements are obtained while the single coil is placed on one or more non-conductive sheets overlaying the specimen, the non-conductive sheets having indicia indicative of one or more of the discrete locations.

9. The method of claim 1 , wherein the plurality of coil property measurements are obtained while the target area is pressed against an insulative plate, the single coil being positioned at the plurality of discrete locations on the other side of the insulative plate.

10. The method of claim 1 , wherein the plurality of coil property measurements are obtained while the patient is located on a table having a non-conductive surface, the single coil being disposed within a cavity located in the table.

Assignees

• Kimberly Clark Co

Inventors

• Feldkamp Joseph R
• Sullivan Shawn Jeffery

Classifications

• A61B5/445

  Evaluating skin irritation or skin trauma, e.g. rash, eczema, wound, bed sore · CPC title

• A61B5/0536

  Impedance imaging, e.g. by tomography · CPC title

• A61B5/7425

  Displaying combinations of multiple images regardless of image source, e.g. displaying a reference anatomical image with a live image · CPC title

• A61B5/4255

  Intestines, colon or appendix · CPC title

• A61B5/0522 Primary

  Magnetic induction tomography · CPC title