A Robust Method for Adjustment of Laser Speckle Contrast Imaging during Transcranial Mouse Brain Visualization

Vyacheslav Kalchenko, Anton Sdobnov, Igor Meglinski, Yuri Kuznetsov, Guillaume Molodij, Alon Harmelin

Research output: Contribution to journalLetter

Abstract

Laser speckle imaging (LSI) is a well-known and useful approach for the non-invasive visualization of flows and microcirculation localized in turbid scattering media, including biological tissues (such as brain vasculature, skin capillaries etc.). Despite an extensive use of LSI for brain imaging, the LSI technique has several critical limitations. One of them is associated with inability to resolve a functionality of vessels. This limitation also leads to the systematic error in the quantitative interpretation of values of speckle contrast obtained for different vessel types, such as sagittal sinus, arteries, and veins. Here, utilizing a combined use of LSI and fluorescent intravital microscopy (FIM), we present a simple and robust method to overcome the limitations mentioned above for the LSI approach. The proposed technique provides more relevant, abundant, and valuable information regarding perfusion rate ration between different types of vessels that makes this method highly useful for in vivo brain surgical operations.

Original languageEnglish
Article number80
JournalPhotonics
Volume6
Issue number3
DOIs
Publication statusPublished - 13 Jul 2019

Fingerprint

Speckle
brain
mice
Brain
Lasers
Visualization
adjusting
Imaging techniques
vessels
lasers
sinuses
rations
Microcirculation
flow visualization
arteries
veins
Neuroimaging
imaging techniques
systematic errors
Systematic errors

Bibliographical note

© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access
article distributed under the terms and conditions of the Creative Commons Attribution
(CC BY) license (http://creativecommons.org/licenses/by/4.0/).

Funding: The Henry Chanoch Krenter Institute for Biomedical Imaging and Genomics (Sta Scientists grant program), Academy of Finland (project 326204), NATO (project SPS G5147), MEPhI Academic Excellence Project (Contract No. 02.a03.21.0005), National Research Tomsk State University Academic D.I. Mendeleev Fund Program, Finnish Cultural Foundation (00180998) grant.

Keywords

  • Cerebral blood vessels
  • In vivo fluorescence imaging
  • Middle cerebral artery
  • Non-invasive optical imaging
  • Speckle contrast
  • Transcranial imaging

Cite this

Kalchenko, Vyacheslav ; Sdobnov, Anton ; Meglinski, Igor ; Kuznetsov, Yuri ; Molodij, Guillaume ; Harmelin, Alon. / A Robust Method for Adjustment of Laser Speckle Contrast Imaging during Transcranial Mouse Brain Visualization. In: Photonics. 2019 ; Vol. 6, No. 3.
@article{d0c043f40a66485fbcce240bfc1b6b10,
title = "A Robust Method for Adjustment of Laser Speckle Contrast Imaging during Transcranial Mouse Brain Visualization",
abstract = "Laser speckle imaging (LSI) is a well-known and useful approach for the non-invasive visualization of flows and microcirculation localized in turbid scattering media, including biological tissues (such as brain vasculature, skin capillaries etc.). Despite an extensive use of LSI for brain imaging, the LSI technique has several critical limitations. One of them is associated with inability to resolve a functionality of vessels. This limitation also leads to the systematic error in the quantitative interpretation of values of speckle contrast obtained for different vessel types, such as sagittal sinus, arteries, and veins. Here, utilizing a combined use of LSI and fluorescent intravital microscopy (FIM), we present a simple and robust method to overcome the limitations mentioned above for the LSI approach. The proposed technique provides more relevant, abundant, and valuable information regarding perfusion rate ration between different types of vessels that makes this method highly useful for in vivo brain surgical operations.",
keywords = "Cerebral blood vessels, In vivo fluorescence imaging, Middle cerebral artery, Non-invasive optical imaging, Speckle contrast, Transcranial imaging",
author = "Vyacheslav Kalchenko and Anton Sdobnov and Igor Meglinski and Yuri Kuznetsov and Guillaume Molodij and Alon Harmelin",
note = "{\circledC} 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Funding: The Henry Chanoch Krenter Institute for Biomedical Imaging and Genomics (Sta Scientists grant program), Academy of Finland (project 326204), NATO (project SPS G5147), MEPhI Academic Excellence Project (Contract No. 02.a03.21.0005), National Research Tomsk State University Academic D.I. Mendeleev Fund Program, Finnish Cultural Foundation (00180998) grant.",
year = "2019",
month = "7",
day = "13",
doi = "10.3390/photonics6030080",
language = "English",
volume = "6",
number = "3",

}

A Robust Method for Adjustment of Laser Speckle Contrast Imaging during Transcranial Mouse Brain Visualization. / Kalchenko, Vyacheslav; Sdobnov, Anton; Meglinski, Igor; Kuznetsov, Yuri; Molodij, Guillaume; Harmelin, Alon.

In: Photonics, Vol. 6, No. 3, 80, 13.07.2019.

Research output: Contribution to journalLetter

TY - JOUR

T1 - A Robust Method for Adjustment of Laser Speckle Contrast Imaging during Transcranial Mouse Brain Visualization

AU - Kalchenko, Vyacheslav

AU - Sdobnov, Anton

AU - Meglinski, Igor

AU - Kuznetsov, Yuri

AU - Molodij, Guillaume

AU - Harmelin, Alon

N1 - © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Funding: The Henry Chanoch Krenter Institute for Biomedical Imaging and Genomics (Sta Scientists grant program), Academy of Finland (project 326204), NATO (project SPS G5147), MEPhI Academic Excellence Project (Contract No. 02.a03.21.0005), National Research Tomsk State University Academic D.I. Mendeleev Fund Program, Finnish Cultural Foundation (00180998) grant.

PY - 2019/7/13

Y1 - 2019/7/13

N2 - Laser speckle imaging (LSI) is a well-known and useful approach for the non-invasive visualization of flows and microcirculation localized in turbid scattering media, including biological tissues (such as brain vasculature, skin capillaries etc.). Despite an extensive use of LSI for brain imaging, the LSI technique has several critical limitations. One of them is associated with inability to resolve a functionality of vessels. This limitation also leads to the systematic error in the quantitative interpretation of values of speckle contrast obtained for different vessel types, such as sagittal sinus, arteries, and veins. Here, utilizing a combined use of LSI and fluorescent intravital microscopy (FIM), we present a simple and robust method to overcome the limitations mentioned above for the LSI approach. The proposed technique provides more relevant, abundant, and valuable information regarding perfusion rate ration between different types of vessels that makes this method highly useful for in vivo brain surgical operations.

AB - Laser speckle imaging (LSI) is a well-known and useful approach for the non-invasive visualization of flows and microcirculation localized in turbid scattering media, including biological tissues (such as brain vasculature, skin capillaries etc.). Despite an extensive use of LSI for brain imaging, the LSI technique has several critical limitations. One of them is associated with inability to resolve a functionality of vessels. This limitation also leads to the systematic error in the quantitative interpretation of values of speckle contrast obtained for different vessel types, such as sagittal sinus, arteries, and veins. Here, utilizing a combined use of LSI and fluorescent intravital microscopy (FIM), we present a simple and robust method to overcome the limitations mentioned above for the LSI approach. The proposed technique provides more relevant, abundant, and valuable information regarding perfusion rate ration between different types of vessels that makes this method highly useful for in vivo brain surgical operations.

KW - Cerebral blood vessels

KW - In vivo fluorescence imaging

KW - Middle cerebral artery

KW - Non-invasive optical imaging

KW - Speckle contrast

KW - Transcranial imaging

UR - https://www.mdpi.com/2304-6732/6/3/80

UR - http://www.scopus.com/inward/record.url?scp=85071565090&partnerID=8YFLogxK

U2 - 10.3390/photonics6030080

DO - 10.3390/photonics6030080

M3 - Letter

VL - 6

IS - 3

M1 - 80

ER -