Evidence map›Paper›PMID 33767305›Full record

ArticleScientific reports2021

Characterization of laser speckle flowgraphy pulse waveform parameters for the evaluation of the optic nerve head and retinal circulation.

Nobuko Enomoto, Ayako Anraku, Goji Tomita, Aiko Iwase, Takashi Sato, Nobuyuki Shoji, Tomoaki Shiba, Toru Nakazawa, Kazuhisa Sugiyama, Koji Nitta and 1 more

Abstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

  1. Article
  2. Article
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  5. Evaluation of ocular blood flow in the assessment of symptomatic carotid stenosis.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
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  14. Characteristics of laterality in the optic nerve head microcirculation obtained by laser speckle flowgraphy in healthy subjects.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2022
    Article
  15. Article
  16. Observational
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

11 authors.

Nobuko EnomotoDepartment of Ophthalmology, Toho University Ohashi Medical Center, 2-22-36, Ohashi Meguro-ku, Tokyo, 153-8515, Japan. nobuko.enomoto@med.toho-u.ac.jp.
Ayako AnrakuDepartment of Ophthalmology, Toho University Ohashi Medical Center, 2-22-36, Ohashi Meguro-ku, Tokyo, 153-8515, Japan.
Goji TomitaDepartment of Ophthalmology, Toho University Ohashi Medical Center, 2-22-36, Ohashi Meguro-ku, Tokyo, 153-8515, Japan.
Aiko IwaseTajimi Iwase Eye Clinic, Tajimi, Gifu, Japan.
Takashi SatoDepartment of Ophthalmology, Toho University Ohashi Medical Center, 2-22-36, Ohashi Meguro-ku, Tokyo, 153-8515, Japan.
Nobuyuki ShojiDepartment of Ophthalmology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan.
Tomoaki ShibaDepartment of Ophthalmology, School of Medicine, Toho University, Tokyo, Japan.
Toru NakazawaDepartment of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Kazuhisa SugiyamaDepartment of Ophthalmology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan.
Koji NittaFukui-ken Saiseikai Hospital, Fukui, Japan.
Makoto AraieKanto Central Hospital of the Mutual Aid Association of Public School Teachers, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To characterize laser speckle flowgraphy (LSFG) pulse waveform parameters for ocular circulation evaluation, a multicenter, prospective, cross-sectional study was conducted in 111 eyes of 86 healthy Japanese individuals. Optic nerve head (ONH) tissue-area, vessel-area mean blur rate (MT and MV, respectively), and MT and MV pulse waveform parameters were obtained using LSFG and ONH structural parameters using planimetry. Multivariate linear mixed-effects modeled regression analysis identified factors contributing to MT- or MV-waveforms using age, gender, smoking history, body mass index, systolic and diastolic blood pressure, heart rate, intraocular pressure, axial length, disc, rim, and β-peripapillary atrophy areas, MT or MV, central retinal artery, and vein equivalents (CRAE and CRVE) as explanatory variables. MT- and MV-waveforms significantly correlated with one or more systemic factors, consistent with previous studies. Following confounding factor adjustment, MT-Skew significantly negatively correlated with β-PPA area (P = 0.026); MT- and MV-flow acceleration index positively correlated with CRAE, MT, and MV (P = 0.041-< 0.001), compatible with these parameters' observed correlations to systemic factors. Significantly negative correlations of the blowout score and acceleration time index to CRAE partly conflicted with their correlations to systemic factors, and other waveform parameters showed little correlation to ocular factors. Thus, Skew and flow acceleration index assisted the in vivo ocular circulation characterization.

Indexed as

Intraocular PressureMicrocirculationRegional Blood FlowAdultAgedAged, 80 and overBlood Flow VelocityCross-Sectional StudiesFemaleHumansLaser-Doppler FlowmetryMaleMiddle AgedOptic DiskProspective StudiesPulse Wave Analysis

Identifiers

PMID33767305
PMCPMC7994841

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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.