Evidence map›Paper›PMID 25071956›Full record

ArticleBiomedical optics express2014

Optimization of camera exposure durations for multi-exposure speckle imaging of the microcirculation.

S M Shams Kazmi, Satyajit Balial, Andrew K Dunn

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 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed.

  1. Article
  2. Wide-field intensity fluctuation imaging.Biomedical optics express · 2024
    Article
  3. Article
  4. Article
  5. Wide-field Intensity Fluctuation Imaging.bioRxiv : the preprint server for biology · 2023
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Intraoperative multi-exposure speckle imaging of cerebral blood flow.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2017
    Article
  14. Article
  15. Article
  16. Expanding applications, accuracy, and interpretation of laser speckle contrast imaging of cerebral blood flow.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2015
    Review
  17. Article
  18. 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

3 authors.

S M Shams KazmiDepartment of Biomedical Engineering, The University of Texas at Austin, 107 W. Dean Keeton C0800, Austin, Texas. 78712, USA.
Satyajit BalialDepartment of Biomedical Engineering, The University of Texas at Austin, 107 W. Dean Keeton C0800, Austin, Texas. 78712, USA.
Andrew K DunnDepartment of Biomedical Engineering, The University of Texas at Austin, 107 W. Dean Keeton C0800, Austin, Texas. 78712, USA.

Funding

Microscale Oxygenation Mapping During StrokeR01NS082518 · NINDS · UNIVERSITY OF TEXAS AT AUSTIN · PI DUNN, ANDREW K · 2013 to 2017
$1.7M
Neurovascular Mechanisms of Time-Dependencies in Stroke RehabilitationR01NS078791 · NINDS · UNIVERSITY OF TEXAS AT AUSTIN · PI DUNN, ANDREW K, JONES, THERESA A · 2012 to 2016
$1.7M
NINDS NIH HHS R01 NS078791NINDS NIH HHS R01 NS082518
6 · The paper itself

Abstract

Improved Laser Speckle Contrast Imaging (LSCI) blood flow analyses that incorporate inverse models of the underlying laser-tissue interaction have been used to develop more quantitative implementations of speckle flowmetry such as Multi-Exposure Speckle Imaging (MESI). In this paper, we determine the optimal camera exposure durations required for obtaining flow information with comparable accuracy with the prevailing MESI implementation utilized in recent in vivo rodent studies. A looping leave-one-out (LOO) algorithm was used to identify exposure subsets which were analyzed for accuracy against flows obtained from analysis with the original full exposure set over 9 animals comprising n = 314 regional flow measurements. From the 15 original exposures, 6 exposures were found using the LOO process to provide comparable accuracy, defined as being no more than 10% deviant, with the original flow measurements. The optimal subset of exposures provides a basis set of camera durations for speckle flowmetry studies of the microcirculation and confers a two-fold faster acquisition rate and a 28% reduction in processing time without sacrificing accuracy. Additionally, the optimization process can be used to identify further reductions in the exposure subsets for tailoring imaging over less expansive flow distributions to enable even faster imaging.

Indexed as

(110.6150) Speckle imaging(170.0170) Medical optics and biotechnology

Identifiers

PMID25071956
PMCPMC4102356

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

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.