Evidence map›Paper›PMID 25401026›Full record

ArticleBiomedical optics express2014

Ambiguity of mapping the relative phase of blood pulsations.

Victor Teplov, Ervin Nippolainen, Alexander A Makarenko, Rashid Giniatullin, Alexei A Kamshilin

Abstract read
In one paragraph

Article in Biomedical optics express, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
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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

5 authors.

Victor TeplovDepartment of Applied Physics, University of Eastern Finland, P.O. Box 1627, 70210 Kuopio, Finland.
Ervin NippolainenDepartment of Applied Physics, University of Eastern Finland, P.O. Box 1627, 70210 Kuopio, Finland.
Alexander A MakarenkoUniversity of Information Technology, Mechanics, and Optics, 197101 Saint Petersburg, Russia.
Rashid GiniatullinDepartment of Neurobiology, University of Eastern Finland, 70210 Kuopio, Finland ; Lab of Neurobiology, Kazan Federal University, 420008 Kazan, Russia.
Alexei A KamshilinDepartment of Applied Physics, University of Eastern Finland, P.O. Box 1627, 70210 Kuopio, Finland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Blood pulsation imaging (BPI) is a non-invasive optical method based on photoplethysmography (PPG). It is used for the visualization of changes in the spatial distribution of blood in the microvascular bed. BPI specifically allows measurements of the relative phase of blood pulsations and using it we detected a novel type of PPG fast waveforms, which were observable in limited areas with asynchronous regional blood supply. In all subjects studied, these fast waveforms coexisted with traditional slow waveforms of PPG. We are therefore presenting a novel lock-in image processing technique of blood pulsation imaging, which can be used for detailed temporal characterization of peripheral microcirculation.

Indexed as

(170.3880) Medical and biological imaging(280.1415) Biological sensing and sensors

Identifiers

PMID25401026
PMCPMC4230858

What OpenQuestion holds

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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.