Evidence map›Paper›PMID 26018458›Full record

ArticleJournal of clinical monitoring and computing2016

Near-infrared spectroscopy determined cerebral oxygenation with eliminated skin blood flow in young males.

Ai Hirasawa, Takahito Kaneko, Naoki Tanaka, Tsukasa Funane, Masashi Kiguchi, Henrik Sørensen, Niels H Secher, Shigehiko Ogoh

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Article in Journal of clinical monitoring and computing, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
3.8field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 24 citations in OpenAlex.

  1. Trial
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  4. Review
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  8. Article
  9. Oxygen metabolism in acute ischemic stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2018
    Review
  10. Article
  11. Article
  12. Prefrontal cortical responses in children with prenatal alcohol-related neurodevelopmental impairment: A functional near-infrared spectroscopy study.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2017
    Article
  13. Review
  14. Article
  15. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 2 countries.

Ai HirasawaGraduate School of Engineering, Toyo University, Kawagoe-shi, Saitama, Japan.
Takahito KanekoDepartment of Biomedical Engineering, Faculty of Science and Engineering, Toyo University, 2100 Kujirai, Kawagoe-shi, Saitama, 350-8585, Japan.
Naoki TanakaGraduate School of Engineering, Toyo University, Kawagoe-shi, Saitama, Japan.
Tsukasa FunaneCentral Research Laboratory, Hitachi, Ltd., Hatoyama-machi, Saitama, Japan.
Masashi KiguchiCentral Research Laboratory, Hitachi, Ltd., Hatoyama-machi, Saitama, Japan.
Henrik SørensenDepartment of Anesthesia, The Copenhagen Muscle Research Center, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
Niels H SecherDepartment of Anesthesia, The Copenhagen Muscle Research Center, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
Shigehiko OgohGraduate School of Engineering, Toyo University, Kawagoe-shi, Saitama, Japan. ogoh@toyo.jp.
Toyo University · JPHitachi (Japan) · JPRigshospitalet · DKUniversity of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We estimated cerebral oxygenation during handgrip exercise and a cognitive task using an algorithm that eliminates the influence of skin blood flow (SkBF) on the near-infrared spectroscopy (NIRS) signal. The algorithm involves a subtraction method to develop a correction factor for each subject. For twelve male volunteers (age 21 ± 1 yrs) +80 mmHg pressure was applied over the left temporal artery for 30 s by a custom-made headband cuff to calculate an individual correction factor. From the NIRS-determined ipsilateral cerebral oxyhemoglobin concentration (O2Hb) at two source-detector distances (15 and 30 mm) with the algorithm using the individual correction factor, we expressed cerebral oxygenation without influence from scalp and scull blood flow. Validity of the estimated cerebral oxygenation was verified during cerebral neural activation (handgrip exercise and cognitive task). With the use of both source-detector distances, handgrip exercise and a cognitive task increased O2Hb (P < 0.01) but O2Hb was reduced when SkBF became eliminated by pressure on the temporal artery for 5 s. However, when the estimation of cerebral oxygenation was based on the algorithm developed when pressure was applied to the temporal artery, estimated O2Hb was not affected by elimination of SkBF during handgrip exercise (P = 0.666) or the cognitive task (P = 0.105). These findings suggest that the algorithm with the individual correction factor allows for evaluation of changes in an accurate cerebral oxygenation without influence of extracranial blood flow by NIRS applied to the forehead.

Indexed as

Skin Physiological PhenomenaAlgorithmsBlood Flow VelocityBrainCerebrovascular CirculationDiagnosis, Computer-AssistedHumansMaleOximetryOxygenOxygen ConsumptionReproducibility of ResultsSensitivity and SpecificitySkinSpectroscopy, Near-InfraredYoung AdultOxygenExtracranial blood flowHeadband inflationOxyhemoglobinTemporal artery

Identifiers

PMID26018458
OpenAlexW403943506

What OpenQuestion holds

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Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.