The role of camera and illumination choices in absolute blood velocity measurements

J. C. Ramella-Roman; S. Winhoven

doi:10.1117/12.2081340

The role of camera and illumination choices in absolute blood velocity measurements

J. C. Ramella-Roman, S. Winhoven

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Non-invasive measurements of blood velocity at the capillary level are of great interest in many clinical applications. Recently we presented a new method for the quantitative estimation of blood flow velocity, based on the use of the Radon transform. The technique was based on narrow band illumination at 525 nm and tracking of non-uniform distribution of red blood cells within the vessel, rather than the individual blood cells themselves. Here we present a complete error analysis of this useful technique, highlighting the role of camera and illumination choices. Finally we propose in vivo examples on retinal flow imaging and compare the results obtained with this technique to the one proposed by a commercial system.

Original language	English (US)
Title of host publication	Dynamics and Fluctuations in Biomedical Photonics XII
Publisher	SPIE
Volume	9322
ISBN (Print)	9781628414127
DOIs	https://doi.org/10.1117/12.2081340
State	Published - 2015
Externally published	Yes
Event	Dynamics and Fluctuations in Biomedical Photonics XII - San Francisco, United States Duration: Feb 7 2015 → Feb 8 2015

Other

Other	Dynamics and Fluctuations in Biomedical Photonics XII
Country/Territory	United States
City	San Francisco
Period	2/7/15 → 2/8/15

Keywords

Flow
Red blood cells
Retina

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
Biomaterials
Radiology Nuclear Medicine and imaging

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10.1117/12.2081340

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title = "The role of camera and illumination choices in absolute blood velocity measurements",

abstract = "Non-invasive measurements of blood velocity at the capillary level are of great interest in many clinical applications. Recently we presented a new method for the quantitative estimation of blood flow velocity, based on the use of the Radon transform. The technique was based on narrow band illumination at 525 nm and tracking of non-uniform distribution of red blood cells within the vessel, rather than the individual blood cells themselves. Here we present a complete error analysis of this useful technique, highlighting the role of camera and illumination choices. Finally we propose in vivo examples on retinal flow imaging and compare the results obtained with this technique to the one proposed by a commercial system.",

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AU - Ramella-Roman, J. C.

AU - Winhoven, S.

PY - 2015

Y1 - 2015

N2 - Non-invasive measurements of blood velocity at the capillary level are of great interest in many clinical applications. Recently we presented a new method for the quantitative estimation of blood flow velocity, based on the use of the Radon transform. The technique was based on narrow band illumination at 525 nm and tracking of non-uniform distribution of red blood cells within the vessel, rather than the individual blood cells themselves. Here we present a complete error analysis of this useful technique, highlighting the role of camera and illumination choices. Finally we propose in vivo examples on retinal flow imaging and compare the results obtained with this technique to the one proposed by a commercial system.

AB - Non-invasive measurements of blood velocity at the capillary level are of great interest in many clinical applications. Recently we presented a new method for the quantitative estimation of blood flow velocity, based on the use of the Radon transform. The technique was based on narrow band illumination at 525 nm and tracking of non-uniform distribution of red blood cells within the vessel, rather than the individual blood cells themselves. Here we present a complete error analysis of this useful technique, highlighting the role of camera and illumination choices. Finally we propose in vivo examples on retinal flow imaging and compare the results obtained with this technique to the one proposed by a commercial system.

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KW - Retina

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DO - 10.1117/12.2081340

M3 - Conference contribution

AN - SCOPUS:84928540555

SN - 9781628414127

VL - 9322

BT - Dynamics and Fluctuations in Biomedical Photonics XII

PB - SPIE

T2 - Dynamics and Fluctuations in Biomedical Photonics XII

Y2 - 7 February 2015 through 8 February 2015

ER -

The role of camera and illumination choices in absolute blood velocity measurements

Abstract

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Keywords

ASJC Scopus subject areas

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