Wideband bio-imaging system and related methods

• US 9,173,584 B2
• Filed: 12/19/2008
• Issued: 11/03/2015
• Est. Priority Date: 12/21/2007
• Status: Active Grant

• Current Assignee: Old Dominion University Research Foundation
• Original Assignee: Old Dominion University Research Foundation
• Inventors: Schoenbach, Karl H., Xiao, Shu
• Primary Examiner(s): Paulson, Sheetal R
• Application Number:
  US12/809,007
• Publication Number:
  US 20100278401A1
• Time in Patent Office: 2,510 Days
• Field of Search: 382/128
• US Class Current: 1/1
• CPC Class Codes: A61B 2576/00 Medical imaging apparatus involving image processing or analysis A61B1/00009, A61B6/52 and A61B8/52 take precedence; image processing per se G06T; details of algorithms for analysing medical images G06T7/0012
• CPC Class Codes: A61B 5/05 Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves impedance plethysmography A61B5/0295; measuring movement of the entire body or parts thereof A61B5/11; detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof A61B5/24
• CPC Class Codes: A61B 5/0507 using microwaves or terahertz waves
• CPC Class Codes: A61B 6/03 Computed tomography [CT] echo-tomography A61B8/14

Abstract

An imaging and recordation system is provided. The system includes a high-power, focusing antenna for illuminating biological tissue. The system further includes a power source for powering the antenna. The system further includes a data acquisition module, for recording the dielectric properties of tissues illuminated by the high-power, focusing antenna. The system illuminates the tissues using ultrashort electrical pulses.

Claims

1. An imaging and recordation system, comprising:

a high-power, focusing antenna for illuminating a remote, external focal point of the high power, focusing antenna;

a power source for generating ultrashort electrical pulses for the antenna; and

a data acquisition module, for recording the dielectric properties of one or more objects positioned at the focal point and illuminated by the high-power, focusing antenna;

wherein the high power, focusing antenna comprises a wave launching system for generating electromagnetic waves based on the ultrashort electrical pulses and a focusing reflector associated with the wave launching system and configured with reflecting surfaces for causing the electromagnetic waves from the wave launching system to converge at the focal point, wherein the reflecting surfaces define a prolate spheroidal reflector.

2. The system of claim 1, wherein the ultrashort electrical pulses have a duration on the order of 100 pico seconds (ps).

3. The system of claim 1, wherein the wave launching system comprises a conical wave launching system.

4. The system of claim 1, wherein the data acquisition module implements an inverse scattering algorithm.

5. The system of claim 1, wherein the power source is configured to feed the antenna high-power pulses with durations on the order of 50-150 pico seconds (ps).

6. The system of claim 1, further comprising an image-reconstruction module.

7. The system of claim 6, wherein the image-reconstruction module implements an image reconstruction algorithm used in an inverse scattering process.

8. The system of claim 7, wherein the image-reconstruction module is configured to generate a spatial resolution of an image with values of 1/7 or 1/10 of a wavelength based on a non-linear algorithm.

9. The system of claim 1, wherein the ultrashort electrical pulses have a duration greater than 10 pico seconds (ps) and less than 1000 ps.

10. The system of claim 1, wherein the power source is configured to feed the antenna high-power pulses with durations greater than 10 pico seconds (ps) and less than 1000 ps.

11. The system of claim 1, wherein the focusing antenna further comprises at least one lens.