Evidence map›Paper›PMID 30961120›Full record

ArticlePolymers2018

A Polymer-Gel Eye-Phantom for 3D Fluorescent Imaging of Millimetre Radiation Beams.

Leonard H Luthjens, Tiantian Yao, John M Warman

Abstract read
In one paragraph

Article in Polymers, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Article
  5. 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.

Leonard H LuthjensDelft University of Technology, Faculty of Applied Sciences, Department of Radiation Science and Technology, Section Radiation and Isotopes for Health, Mekelweg 15, 2629 JB Delft, The Netherlands. l.h.luthjens@tudelft.nl.
Tiantian YaoDelft University of Technology, Faculty of Applied Sciences, Department of Radiation Science and Technology, Section Radiation and Isotopes for Health, Mekelweg 15, 2629 JB Delft, The Netherlands. t.yao@tudelft.nl.
John M WarmanDelft University of Technology, Faculty of Applied Sciences, Department of Radiation Science and Technology, Section Radiation and Isotopes for Health, Mekelweg 15, 2629 JB Delft, The Netherlands. j.m.warman@tudelft.nl.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have filled a 24 mm diameter glass sphere with a transparent polymer-gel that is radio-fluorogenic, i.e., it becomes (permanently) fluorescent when irradiated, with an intensity proportional to the local dose deposited. The gel consists of >99.9% tertiary-butyl acrylate (TBA), pre-polymerized to ~15% conversion, and ~100 ppm maleimido-pyrene (MPy). Its dimensions and physical properties are close to those of the vitreous body of the human eye. We have irradiated the gel with a 3 mm diameter, 200 kVp X-ray beam with a dose rate of ~1 Gy/min. A three-dimensional (3D) (video) view of the beam within the gel has been constructed from tomographic images obtained by scanning the sample through a thin sheet of UV light. To minimize optical artefacts, the cell was immersed in a square tank containing a refractive-index-matching medium. The 20⁻80% penumbra of the beam was determined to be ~0.4 mm. This research was a preparatory investigation of the possibility of using this method to monitor the millimetre diameter proton pencil beams used in ocular radiotherapy.

Indexed as

3D radiation imagingpolymer gel dosimetryradio-fluorogenic gelradiotherapy eye-phantomX-ray beam imaging

Identifiers

PMID30961120
PMCPMC6290594

What OpenQuestion holds

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Registered trials

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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.