Evidence map›Paper›PMID 34595120›Full record

ArticleFrontiers in oncology2021

Fluorescence Lifetime Imaging and Spectroscopic Co-Validation for Protoporphyrin IX-Guided Tumor Visualization in Neurosurgery.

David Reichert, Mikael T Erkkilae, Johanna Gesperger, Lisa I Wadiura, Alexandra Lang, Thomas Roetzer, Adelheid Woehrer, Marco Andreana, Angelika Unterhuber, Marco Wilzbach and 5 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in oncology, 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
1.4field-weighted citation impact, top 21% of its field
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, 22 citations in OpenAlex.

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  13. Fluorescein-guided resection for pediatric low-grade gliomas: institutional experience on two cases and a narrative literature review.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2023
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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

15 authors at 3 institutions in 2 countries.

David ReichertCenter for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.
Mikael T ErkkilaeCenter for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.
Johanna GespergerCenter for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.
Lisa I WadiuraDepartment of Neurosurgery, Medical University of Vienna, Vienna, Austria.
Alexandra LangDepartment of Neurosurgery, Medical University of Vienna, Vienna, Austria.
Thomas RoetzerDivision of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, Vienna, Austria.
Adelheid WoehrerDivision of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, Vienna, Austria.
Marco AndreanaCenter for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.
Angelika UnterhuberCenter for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.
Marco WilzbachAdvanced Development Microsurgery, Carl Zeiss Meditec AG, Oberkochen, Germany.
Christoph HaugerAdvanced Development Microsurgery, Carl Zeiss Meditec AG, Oberkochen, Germany.
Wolfgang DrexlerCenter for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.
Barbara KieselDepartment of Neurosurgery, Medical University of Vienna, Vienna, Austria.
Georg WidhalmDepartment of Neurosurgery, Medical University of Vienna, Vienna, Austria.
Rainer A LeitgebCenter for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.
Medical University of Vienna · ATCarl Zeiss (Germany) · DEChristian Doppler Laboratory for Thermoelectricity · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Maximal safe resection is a key strategy for improving patient prognosis in the management of brain tumors. Intraoperative fluorescence guidance has emerged as a standard in the surgery of high-grade gliomas. The administration of 5-aminolevulinic acid prior to surgery induces tumor-specific accumulation of protoporphyrin IX, which emits red fluorescence under blue-light illumination. The technology, however, is substantially limited for low-grade gliomas and weakly tumor-infiltrated brain, where low protoporphyrin IX concentrations are outweighed by tissue autofluorescence. In this context, fluorescence lifetime imaging has shown promise to distinguish spectrally overlapping fluorophores. We integrated frequency-domain fluorescence lifetime imaging in a surgical microscope and combined it with spatially registered fluorescence spectroscopy, which can be considered a research benchmark for sensitive protoporphyrin IX detection. Fluorescence lifetime maps and spectra were acquired for a representative set of fresh

Indexed as

fluorescence-guided surgeryfluorescence lifetime imaging (FLIM)fluorescence spectroscopyprotoporphyrin IXsurgical microscope

Identifiers

PMID34595120
PMCPMC8476921
OpenAlexW3201431524

What OpenQuestion holds

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LicenceCC BY
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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.