Single-wavelength blood oxygen saturation sensing with combined optical absorption and scattering
Blood oxygen saturation (SO2) reflects the oxygenation level in blood transport and tissue.
Previous studies have shown the capability of non-invasive quantitative measurements of …
Previous studies have shown the capability of non-invasive quantitative measurements of …
Quantitative blood oxygen saturation imaging using combined photoacoustics and acousto-optics
A Hussain, W Petersen, J Staley, E Hondebrink… - Optics letters, 2016 - opg.optica.org
In photoacoustic spectroscopy (PAS), wavelength dependent optical attenuation of
biological tissue presents a challenge to measure the absolute oxygen saturation of …
biological tissue presents a challenge to measure the absolute oxygen saturation of …
[HTML][HTML] Multiple irradiation sensing of the optical effective attenuation coefficient for spectral correction in handheld OA imaging
Spectral optoacoustic (OA) imaging enables spatially-resolved measurement of blood
oxygenation levels, based on the distinct optical absorption spectra of oxygenated and de …
oxygenation levels, based on the distinct optical absorption spectra of oxygenated and de …
Learned spectral decoloring enables photoacoustic oximetry
The ability of photoacoustic imaging to measure functional tissue properties, such as blood
oxygenation sO 2, enables a wide variety of possible applications. sO 2 can be computed …
oxygenation sO 2, enables a wide variety of possible applications. sO 2 can be computed …
Lifetime-based photoacoustic oxygen sensing in vivo
The determination of oxygen levels in blood and other tissues in vivo is critical for ensuring
proper body functioning, for monitoring the status of many diseases, such as cancer, and for …
proper body functioning, for monitoring the status of many diseases, such as cancer, and for …
Quantitative spatially resolved measurement of tissue chromophore concentrations using photoacoustic spectroscopy: application to the measurement of blood …
A new approach based on pulsed photoacoustic spectroscopy for non-invasively quantifying
tissue chromophore concentrations with high spatial resolution has been developed. The …
tissue chromophore concentrations with high spatial resolution has been developed. The …
Dynamic monitoring of blood oxygen saturation in vivo using double-ring photoacoustic sensor
G Yin, D Xing, S Yang - Journal of Applied Physics, 2009 - pubs.aip.org
Photoacoustic (PA) can distinguish oxygenated main chromophores which are hemoglobin
(HbO 2) and deoxygenated hemoglobin (Hb) in blood by the optical absorption at multiple …
(HbO 2) and deoxygenated hemoglobin (Hb) in blood by the optical absorption at multiple …
[HTML][HTML] Fluence-matching technique using photoacoustic radiofrequency spectra for improving estimates of oxygen saturation
Photoacoustic (PA) signals encode information about the optical absorption and spatial
distribution of absorbing chromophores as well as the light distribution in the medium. The …
distribution of absorbing chromophores as well as the light distribution in the medium. The …
New hybrid reflectance optical pulse oximetry sensor for lower oxygen saturation measurement and for broader clinical application
M Nogawa, CT Ching, T Ida, K Itakura… - Biomedical Sensing …, 1997 - spiedigitallibrary.org
A new reflectance pulse oximeter sensor for lower arterial oxygen saturation (Sa) 2)
measurement has been designed and evaluated in animals prior to clinical trials. The new …
measurement has been designed and evaluated in animals prior to clinical trials. The new …
Limitations of quantitative photoacoustic measurements of blood oxygenation in small vessels
We investigate the feasibility of obtaining accurate quantitative information, such as local
blood oxygenation level (sO 2), with a spatial resolution of about 50 µm from spectral …
blood oxygenation level (sO 2), with a spatial resolution of about 50 µm from spectral …