Evidence map›Paper›PMID 23644902›Full record

ArticleJournal of biomedical optics2013

Oxygen tomography by Čerenkov-excited phosphorescence during external beam irradiation.

Rongxiao Zhang, Scott C Davis, Jennifer-Lynn H Demers, Adam K Glaser, David J Gladstone, Tatiana V Esipova, Sergei A Vinogradov, Brian W Pogue

Open access · hybridAbstract read
In one paragraph

Article in Journal of biomedical optics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
6.4field-weighted citation impact, top 3% 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

23 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
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  6. High-Resolution pOInternational journal of radiation oncology, biology, physics · 2021
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  16. Activating Photodynamic Therapy in vitro with Cerenkov Radiation Generated from Yttrium-90.Journal of environmental pathology, toxicology and oncology : official organ of the International Society for Environmental Toxicology and Cancer · 2016
    Article
  17. Article
  18. Review
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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

8 authors at 3 institutions in 1 country.

Rongxiao ZhangDartmouth College, Department of Physics and Astronomy, Hanover, NH 03755, USA.
Scott C Davis
Jennifer-Lynn H Demers
Adam K Glaser
David J Gladstone
Tatiana V Esipova
Sergei A Vinogradov
Brian W Pogue
Dartmouth College · USCalifornia University of Pennsylvania · USUniversity of Pennsylvania · US

Funding

Translational Engineering in Cancer (TEC)P30CA023108 · NCI · DARTMOUTH COLLEGE · PI Steven D Leach · 1985 to 2026
$91.3M
Fluorescence Imaging to Optimize Cancer TherapyR01CA109558 · NCI · DARTMOUTH COLLEGE · PI POGUE, BRIAN WILLIAM · 2005 to 2015
$2.8M
Micro CT/NIR Molecular Imaging of CancerR01CA120368 · NCI · DARTMOUTH COLLEGE · PI POGUE, BRIAN WILLIAM · 2007 to 2011
$1.2M
NIRFASTR01CA132750 · NCI · DARTMOUTH COLLEGE · PI POGUE, BRIAN WILLIAM · 2009 to 2012
$1.2M
Cerenkov Tomography of 4D Radiation Therapy PlansR21EB017559 · NIBIB · DARTMOUTH COLLEGE · PI POGUE, BRIAN WILLIAM · 2013 to 2014
$419k
NCI NIH HHS P30 CA023108NCI NIH HHS R01 CA109558NCI NIH HHS R01CA109558NCI NIH HHS R01 CA120368NCI NIH HHS R01CA120368NCI NIH HHS R01 CA132750NIBIB NIH HHS R21 EB017559
6 · The paper itself

Abstract

The efficacy of radiation therapy depends strongly on tumor oxygenation during irradiation. However, current techniques to measure this parameter in vivo do not facilitate routine monitoring in patients. Herein, we demonstrate a noninvasive method for tomographic imaging of oxygen partial pressure (pO(2)) in deep tissue using the phosphorescence decay of an oxygen-sensitive probe excited by Čerenkov radiation induced by external beam radiotherapy. Tissue-simulating scattering phantoms (60 mm diameter with a 20 mm anomaly) containing platinum(II)-G4 (PtG4), a dendritic porphyrin-based phosphor, whose phosphorescence is quenched in the presence of oxygen, were irradiated with a clinical linear accelerator. The emitted phosphorescence was measured at various positions on the phantom boundary using a spectrograph coupled to an intensified charge-coupled device (ICCD). At each position, PtG4 phosphorescence decay curves were measured by synchronizing the ICCD to the linear accelerator pulses. Tomographic images of phosphorescence yield and lifetime were recovered for phantoms with homogenous PtG4 concentrations and heterogeneous pO(2). Since PtG4 lifetime is strongly and predictably dependent on pO(2) through the Stern-Volmer relationship, tomographic images of pO(2) were also reported, and showed excellent agreement with independent oxygenation measurements. Translating this approach to the clinic could facilitate direct sensing of pO(2) during radiotherapy.

Indexed as

Electromagnetic RadiationImage Processing, Computer-AssistedLuminescent MeasurementsOxygenPhantoms, ImagingTomographyOxygen

Identifiers

PMID23644902
PMCPMC3643897
OpenAlexW2061353820

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.