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Literature DB >> 31061774

Quantitative measurements of cerebral blood flow with near-infrared spectroscopy.

Thao Pham¹, Kristen Tgavalekos¹, Angelo Sassaroli¹, Giles Blaney¹, Sergio Fantini¹.

Abstract

We propose a new near-infrared spectroscopy (NIRS) method for quantitative measurements of cerebral blood flow (CBF). Because this method uses concepts of coherent hemodynamics spectroscopy (CHS), we identify this new method with the acronym NIRS-CHS. We tested this method on the prefrontal cortex of six healthy human subjects during mean arterial pressure (MAP) transients induced by the rapid deflation of pneumatic thigh cuffs. A comparison of CBF dynamics measured with NIRS-CHS and with diffuse correlation spectroscopy (DCS) showed a good agreement for characteristic times of the CBF transient. We also report absolute measurements of baseline CBF with NIRS-CHS (69 ± 6 ml/100g/min over the six subjects). NIRS-CHS can provide more accurate measurements of CBF with respect to previously reported NIRS surrogates of CBF.

Entities: Chemical Disease Species

Year: 2019 PMID： 31061774 PMCID： PMC6484993 DOI： 10.1364/BOE.10.002117

Source DB: PubMed Journal: Biomed Opt Express ISSN： 2156-7085 Impact factor: 3.732

48 in total

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2. In vivo cerebrovascular measurement combining diffuse near-infrared absorption and correlation spectroscopies.

Authors: C Cheung; J P Culver; K Takahashi; J H Greenberg; A G Yodh
Journal: Phys Med Biol Date: 2001-08 Impact factor: 3.609

Review 3. Capillary circulation in the brain.

Authors: W Kuschinsky; O B Paulson
Journal: Cerebrovasc Brain Metab Rev Date: 1992

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4 in total

Quantitative measurements of cerebral blood flow with near-infrared spectroscopy.

1. Non-invasive optical monitoring of the newborn piglet brain using continuous-wave and frequency-domain spectroscopy.

2. In vivo cerebrovascular measurement combining diffuse near-infrared absorption and correlation spectroscopies.

Review 3. Capillary circulation in the brain.

4. Comment on the modified Beer-Lambert law for scattering media.

5. Arterial fraction of cerebral blood volume in humans measured by positron emission tomography.

6. Measurement of cerebral perfusion with dual-echo multi-slice quantitative dynamic susceptibility contrast MRI.

7. Yield of transcranial Doppler in acute cerebral ischemia.

8. Identification of pressure passive cerebral perfusion and its mediators after infant cardiac surgery.

9. Cerebral intravascular oxygenation correlates with mean arterial pressure in critically ill premature infants.

10. Diffuse optical tomography of cerebral blood flow, oxygenation, and metabolism in rat during focal ischemia.

1. Algorithm for Determination of Thresholds of Significant Coherence in Time-Frequency Analysis.

Review 2. Frequency-Domain Techniques for Cerebral and Functional Near-Infrared Spectroscopy.

Review 3. Chest Compression in Neonatal Cardiac Arrest: Cerebral Blood Flow Measurements in Experimental Models.

4. A Novel Methodology for the Synchronous Collection and Multimodal Visualization of Continuous Neurocardiovascular and Neuromuscular Physiological Data in Adults with Long COVID.