IP Library › Granted Patent US 12,213,721
Granted Patent B2
US 12,213,721 · App. 16/864,415 · Granted Feb 4, 2025

System, method and computer-accessible medium for catheter-based optical determination of met-myoglobin content for estimating radiofrequency ablated, chronic lesion formation in tissue

Inventors: Christine Hendon (Riverdale, NY); Rajinder Singh-Moon (Mastic, NY); Soo Young Park (Seoul, KR)
Assignee: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
A61B18/12G16H20/40A61B5/14546A61B5/14552A61B5/7264A61B2017/00061A61B2018/00351A61B2018/00577A61B2018/00642A61B2090/061A61B2090/306
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Quick Facts
Patent No.
US 12,213,721
App. No.
16/864,415
Granted
Feb 4, 2025
Kind
B2
Abstract

Exemplary system, method and computer-accessible medium for determining a characteristic(s) of a tissue(s), can be provided which can include, for example, ablating the tissue(s), illuminating the tissue(s) during the ablation procedure; and continuously determining the characteristic(s) based on the ablation and illumination procedures. The tissue(s) can be ablated using radiofrequency ablation. The illumination procedure can be performed with a radiation in a visible spectrum.

Claims (28)

1. A method for determining at least one characteristic of at least one tissue, comprising:

ablating the at least one tissue;

illuminating, by a source, the at least one tissue during the ablation procedure;

receiving, by a detector, diffuse reflectance spectra in a wavelength range of 600 nm-1000 nm based on the illumination procedure; and

using a computer hardware arrangement, continuously determining the at least one characteristic based on the ablation and illumination procedures and the received diffuse reflectance spectra, wherein a separation distance between the source and the detector is between 0.8 mm and 1.7 mm.

2. The method of claim 1 , further comprising ablating the at least one tissue using radiofrequency ablation.

3. The method of claim 1 , wherein the illumination procedure is performed with a radiation in a visible spectrum.

4. The method of claim 1 , further comprising inverting the diffuse reflectance spectra using an inverse Monte Carlo procedure.

5. The method of claim 4 , further comprising determining a concentration of at least one of (i) an oxy-myoglobin, (ii) a deoxy-myoglobin or (iii) a met-myoglobin based on the inverted diffuse reflectance spectra.

6. The method of claim 4 , further comprising:

determining a concentration of a met-myoglobin based on the inverted diffuse reflectance spectra; and

performing at least one of (i) an analysis of variance test or (ii) a Tukey's multiple comparison test on the met-myoglobin concentration.

7. The method of claim 4 , further comprising fitting the inverted diffuse reflectance spectra to a wavelength dependent model.

8. The method of claim 7 , further comprising receiving a plurality of coefficients based on results of the fitting step, wherein the at least one characteristic is determined based on the coefficients.

9. The method of claim 1 , wherein the at least one characteristic includes a classification of the tissue.

10. The method of claim 9 , wherein the classification is regarding the at least one tissue having a lesion thereon.

11. The method of claim 1 , further comprising at least one of (i) repeating the ablation and illumination procedures until a permanent lesion is formed on the at least one tissue, (ii) determining a baseline diffuse reflectance spectra associated with the at least one tissue before the ablation procedure, (iii) flushing the at least one tissue, or (iv) electrically mapping a surface of the at least on tissue.

12. The method of claim 1 , wherein the at least one tissue is illuminated and the diffuse reflectance spectra is received using a single fiber.

13. The method of claim 1 , further comprising continuously and simultaneously detecting the ablating the at least one tissue and a return light radiation based on the illuminating of the at least one tissue.

14. A system for determining at least one characteristic of at least one tissue, comprising

a first electromagnetic radiation source configured to (i) generate at least one first radiation and (ii) provide the at least one first radiation to the at least one tissue so as to partially ablate the at least one tissue;

a second electromagnetic radiation source configured to (i) generate at least one second radiation, and (ii) provide the at least one second radiation to the at least one tissue;

a detector arrangement configured to (i) continuously obtain a return radiation from the at least one tissue that is based on the at least one second radiation impacting the at least one tissue and the at least partial ablation caused by the at least one first radiation, (ii) receive diffuse reflectance spectra in a wavelength range of 600 nm-1000 nm based on the illumination procedure, and (iii) provide data associated with at least one further characteristic of the returned radiation; and

a computer processing arrangement configured to continuously determine the at least one characteristic based on the data and the received diffuse reflectance spectra, wherein a separation distance between the second electromagnetic radiation source and the detector arrangement is between 0.8 mm and 1.7 mm.

15. The system of claim 14 , wherein the data includes information as to whether the at least one tissue has been permanently damaged.

16. The system of claim 14 , wherein at least one of (i) the at least one second radiation is in a visible spectrum, (ii) the at least one characteristic includes a classification of the tissue, or (iii) the classification is regarding the at least one tissue having a lesion thereon.

17. The system of claim 14 , further comprising at least one of (i) at least one flushing arrangement configured to flush the at least one tissue, or (ii) a voltage arrangement configured to generate at least one voltage, wherein the detector arrangement is further configured to obtain a return voltage from the at least one tissue that is based on the at least one second radiation impacting the at least one tissue.

18. The system of claim 14 , wherein at least one of the at least one first radiation or the at least one second radiation is provided in a single fiber, and wherein the detector receives the return radiation from the single fiber.

Assignments (1)
CONFIRMATORY LICENSE Recorded May 22, 2020
From: COLUMBIA UNIVERSITY
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 052742/0900 →
Continuity (6)
Continuation In Part 16259014 · Jan 28, 2019
Continuation In Part 15758639
Provisional Application 62968629 · Jan 31, 2020
Provisional Application 62622267 · Jan 26, 2018
Provisional Application 62217518 · Sep 11, 2015
Related Publication 20200330145A1 · Oct 22, 2020
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