Diffuse Correlation Spectroscopy: A Review of Recent Advances in Parallelisation and Depth Discrimination Techniques
Diffuse correlation spectroscopy is a non-invasive optical modality used to measure cerebral blood flow in real time, and it has important potential applications in clinical monitoring and neuroscience. As such, many research groups have recently been investigating methods to improve the signal-to-n...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/23/23/9338 |
| _version_ | 1797399560664907776 |
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| author | Edward James Peter R. T. Munro |
| author_facet | Edward James Peter R. T. Munro |
| author_sort | Edward James |
| collection | DOAJ |
| description | Diffuse correlation spectroscopy is a non-invasive optical modality used to measure cerebral blood flow in real time, and it has important potential applications in clinical monitoring and neuroscience. As such, many research groups have recently been investigating methods to improve the signal-to-noise ratio, imaging depth, and spatial resolution of diffuse correlation spectroscopy. Such methods have included multispeckle, long wavelength, interferometric, depth discrimination, time-of-flight resolution, and acousto-optic detection strategies. In this review, we exhaustively appraise this plethora of recent advances, which can be used to assess limitations and guide innovation for future implementations of diffuse correlation spectroscopy that will harness technological improvements in the years to come. |
| first_indexed | 2024-03-09T01:42:56Z |
| format | Article |
| id | doaj.art-52a337072d924edeaf69683a99e7708c |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T01:42:56Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-52a337072d924edeaf69683a99e7708c2023-12-08T15:25:31ZengMDPI AGSensors1424-82202023-11-012323933810.3390/s23239338Diffuse Correlation Spectroscopy: A Review of Recent Advances in Parallelisation and Depth Discrimination TechniquesEdward James0Peter R. T. Munro1Department of Medical Physics and Biomedical Engineering, University College London, London WC1E 6BT, UKDepartment of Medical Physics and Biomedical Engineering, University College London, London WC1E 6BT, UKDiffuse correlation spectroscopy is a non-invasive optical modality used to measure cerebral blood flow in real time, and it has important potential applications in clinical monitoring and neuroscience. As such, many research groups have recently been investigating methods to improve the signal-to-noise ratio, imaging depth, and spatial resolution of diffuse correlation spectroscopy. Such methods have included multispeckle, long wavelength, interferometric, depth discrimination, time-of-flight resolution, and acousto-optic detection strategies. In this review, we exhaustively appraise this plethora of recent advances, which can be used to assess limitations and guide innovation for future implementations of diffuse correlation spectroscopy that will harness technological improvements in the years to come.https://www.mdpi.com/1424-8220/23/23/9338diffuse correlation spectroscopycerebral blood flowlaser speckle |
| spellingShingle | Edward James Peter R. T. Munro Diffuse Correlation Spectroscopy: A Review of Recent Advances in Parallelisation and Depth Discrimination Techniques Sensors diffuse correlation spectroscopy cerebral blood flow laser speckle |
| title | Diffuse Correlation Spectroscopy: A Review of Recent Advances in Parallelisation and Depth Discrimination Techniques |
| title_full | Diffuse Correlation Spectroscopy: A Review of Recent Advances in Parallelisation and Depth Discrimination Techniques |
| title_fullStr | Diffuse Correlation Spectroscopy: A Review of Recent Advances in Parallelisation and Depth Discrimination Techniques |
| title_full_unstemmed | Diffuse Correlation Spectroscopy: A Review of Recent Advances in Parallelisation and Depth Discrimination Techniques |
| title_short | Diffuse Correlation Spectroscopy: A Review of Recent Advances in Parallelisation and Depth Discrimination Techniques |
| title_sort | diffuse correlation spectroscopy a review of recent advances in parallelisation and depth discrimination techniques |
| topic | diffuse correlation spectroscopy cerebral blood flow laser speckle |
| url | https://www.mdpi.com/1424-8220/23/23/9338 |
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