Evidence map›Paper›PMID 34024055›Full record

ArticleJournal of biomedical optics2021

Real-time visualization of renal microperfusion using laser speckle contrast imaging.

Wido Heeman, Hanno Maassen, Joost Calon, Harry van Goor, Henri Leuvenink, Gooitzen M van Dam, E Christiaan Boerma

Abstract read
In one paragraph

Article in Journal of biomedical optics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–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

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Transplant international : official journal of the European Society for Organ Transplantation · 2024
    Pooled it
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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

7 authors.

Wido HeemanUniversity of Groningen, Faculty Campus Fryslân, Leeuwarden, The Netherlands.
Hanno MaassenUniversity Medical Centre Groningen, Department of Surgery, Groningen, The Netherlands.
Joost CalonZiuZ Visual Intelligence, Gorredijk, The Netherlands.
Harry van GoorUniversity Medical Centre Groningen, Department of Pathology and Medical Biology, Groningen, The Netherlands.
Henri LeuveninkUniversity Medical Centre Groningen, Department of Surgery, Groningen, The Netherlands.
Gooitzen M van DamUniversity Medical Centre Groningen, Department of Surgery, Groningen, The Netherlands.
E Christiaan BoermaMedical Centre Leeuwarden, Department of Intensive Care, Leeuwarden, The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

significanceIntraoperative parameters of renal cortical microperfusion (RCM) have been associated with postoperative ischemia/reperfusion injury. Laser speckle contrast imaging (LSCI) could provide valuable information in this regard with the advantage over the current standard of care of being a non-contact and full-field imaging technique.

aimOur study aims to validate the use of LSCI for the visualization of RCM on ex vivo perfused human-sized porcine kidneys in various models of hemodynamic changes. APPROACH: A comparison was made between three renal perfusion measures: LSCI, the total arterial renal blood flow (RBF), and sidestream dark-field (SDF) imaging in different settings of ischemia/reperfusion.

resultsLSCI showed a good correlation with RBF for the reperfusion experiment (0.94  ±  0.02; p  <  0.0001) and short- and long-lasting local ischemia (0.90  ±  0.03; p  <  0.0001 and 0.81  ±  0.08; p  <  0.0001, respectively). The correlation decreased for low flow situations due to RBF redistribution. The correlation between LSCI and SDF (0.81  ±  0.10; p  <  0.0001) showed superiority over RBF (0.54  ±  0.22; p  <  0.0001).

conclusionsLSCI is capable of imaging RCM with high spatial and temporal resolutions. It can instantaneously detect local perfusion deficits, which is not possible with the current standard of care. Further development of LSCI in transplant surgery could help with clinical decision making.

Indexed as

KidneyLaser Speckle Contrast ImagingAnimalsBlood Flow VelocityHumansLaser-Doppler FlowmetryRegional Blood FlowSwinekidneylaser speckle contrast imagingrenal microperfusionsidestream dark-field imagingtransplantation

Identifiers

PMID34024055
PMCPMC8140613

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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.