Evidence map›Paper›PMID 30190551›Full record

ArticleNature protocols2018

Fit-free analysis of fluorescence lifetime imaging data using the phasor approach.

Suman Ranjit, Leonel Malacrida, David M Jameson, Enrico Gratton

Abstract read
PubMed Publisher
In one paragraph

Article in Nature protocols, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 196 papers.

0numbers the graph read from it
0cells of the map it votes in
196citing 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

196 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Flipper dendrimers.Chemical science · 2026
    Article
  12. Article
  13. Article
  14. Article
  15. Metabolic trajectories in developing human neocortical neurons.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

136 more citing papers are in PubMed but not listed here.

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

4 authors.

Suman Ranjit *Laboratory for Fluorescence Dynamics, Department of Biomedical Engineering, University of California at Irvine, Irvine, CA, USA.
Leonel Malacrida *Laboratory for Fluorescence Dynamics, Department of Biomedical Engineering, University of California at Irvine, Irvine, CA, USA.
David M JamesonDepartment of Cell and Molecular Biology, University of Hawaii at Manoa, Honolulu, HI, USA.
Enrico GrattonLaboratory for Fluorescence Dynamics, Department of Biomedical Engineering, University of California at Irvine, Irvine, CA, USA. egratton22@gmail.com.

Funding

Uncover Strategies Used By Biological SystemsP50GM076516 · NIGMS · UNIVERSITY OF CALIFORNIA-IRVINE · PI NIE, QING · 2007 to 2016
$25.1M
NIGMS NIH HHS P50 GM076516
6 · The paper itself

Abstract

Fluorescence lifetime imaging microscopy (FLIM) is used in diverse disciplines, including biology, chemistry and biophysics, but its use has been limited by the complexity of the data analysis. The phasor approach to FLIM has the potential to markedly reduce this complexity and at the same time provide a powerful visualization of the data content. Phasor plots for fluorescence lifetime analysis were originally developed as a graphical representation of excited-state fluorescence lifetimes for in vitro systems. The method's simple mathematics and specific rules avoid errors and confusion common in the study of complex and heterogeneous fluorescence. In the case of FLIM, the phasor approach has become a powerful method for simple and fit-free analyses of the information contained in the many thousands of pixels constituting an image. At present, the phasor plot is used not only for FLIM, but also for hyperspectral imaging, wherein phasors provide an unprecedented understanding of heterogeneous fluorescence. Undoubtedly, phasor plots will be increasingly important in the future analysis and understanding of FLIM and hyperspectral confocal imaging. This protocol presents the principle of the method and guides users through one of the popular interfaces for FLIM phasor analysis, namely, the SimFCS software. Implementation of the analysis takes only minutes to complete for a dataset containing hundreds of files.

Indexed as

Image Processing, Computer-AssistedMicroscopy, ConfocalMicroscopy, FluorescenceOptical ImagingSoftware

Identifiers

What OpenQuestion holds

Textmetadata
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.