Display options
Share it on

Biomed Opt Express. 2012 Nov 01;3(11):2700-6. doi: 10.1364/BOE.3.002700. Epub 2012 Oct 02.

In vivo detection of cortical optical changes associated with seizure activity with optical coherence tomography.

Biomedical optics express

Melissa M Eberle, Carissa L Reynolds, Jenny I Szu, Yan Wang, Anne M Hansen, Mike S Hsu, M Shahidul Islam, Devin K Binder, B Hyle Park

Affiliations

  1. Department of Bioengineering, University of California, Riverside, 900 University Ave., Riverside, CA 92521, USA.

PMID: 23162709 PMCID: PMC3493229 DOI: 10.1364/BOE.3.002700

Abstract

The most common technology for seizure detection is with electroencephalography (EEG), which has low spatial resolution and minimal depth discrimination. Optical techniques using near-infrared (NIR) light have been used to improve upon EEG technology and previous research has suggested that optical changes, specifically changes in near-infrared optical scattering, may precede EEG seizure onset in in vivo models. Optical coherence tomography (OCT) is a high resolution, minimally invasive imaging technique, which can produce depth resolved cross-sectional images. In this study, OCT was used to detect changes in optical properties of cortical tissue in vivo in mice before and during the induction of generalized seizure activity. We demonstrated that a significant decrease (P < 0.001) in backscattered intensity during seizure progression can be detected before the onset of observable manifestations of generalized (stage-5) seizures. These results indicate the feasibility of minimally-invasive optical detection of seizures with OCT.

Keywords: (100.2960) Image analysis; (110.4500) Optical coherence tomography; (170.3880) Medical and biological imaging

References

  1. J Biomed Opt. 2004 Jul-Aug;9(4):719-24 - PubMed
  2. Opt Express. 2004 May 17;12(10):2156-65 - PubMed
  3. Science. 1991 Nov 22;254(5035):1178-81 - PubMed
  4. Opt Lett. 2006 Dec 1;31(23):3459-61 - PubMed
  5. Appl Opt. 2010 Oct 20;49(30):5686-96 - PubMed
  6. Epilepsy Res. 2011 Dec;97(3):243-51 - PubMed
  7. Opt Lett. 2007 Sep 1;32(17):2614-6 - PubMed
  8. Brain Res Bull. 1998 Dec;47(6):649-55 - PubMed
  9. Methods Find Exp Clin Pharmacol. 2009 Sep;31(7):423-32 - PubMed
  10. Opt Express. 2003 Dec 29;11(26):3598-604 - PubMed
  11. J Neurosci. 2004 Sep 15;24(37):8049-56 - PubMed
  12. Opt Lett. 2003 Nov 1;28(21):2067-9 - PubMed
  13. Opt Express. 2003 Sep 8;11(18):2183-9 - PubMed
  14. Neuroreport. 2004 Feb 9;15(2):259-62 - PubMed
  15. Clin Neurophysiol. 2009 Aug;120(8):1465-78 - PubMed
  16. J Neurosci Methods. 2009 Mar 30;178(1):162-73 - PubMed
  17. Opt Express. 2012 Jul 2;20(14):14797-813 - PubMed
  18. Neurology. 2011 Jan 4;76(1):23-7 - PubMed
  19. Clin Hemorheol Microcirc. 2004;31(1):31-40 - PubMed
  20. J Neurosurg. 2011 Feb;114(2):470-7 - PubMed

Publication Types

Grant support