Evidence map›Paper›PMID 32782339›Full record

ArticleScientific reports2020

Effect of irreversible electroporation parameters and the presence of a metal stent on the electric field line pattern.

Annemiek M Hogenes, Cornelis H Slump, Gerben A Te Riet O G Scholten, Martijn R Meijerink, Jurgen J Fütterer, Cornelis J H M van Laarhoven, Christiaan G Overduin, Martijn W J Stommel

Abstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
–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

14 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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.

Annemiek M HogenesDepartment of Radiology, Nuclear Medicine and Anatomy, Radboud University Medical Centre, P.O. box 9101 (766), 6500 HB, Nijmegen, The Netherlands. Annemiek.Hogenes@radboudumc.nl.
Cornelis H SlumpDepartment of Robotics and Mechatronics, University of Twente, Enschede, The Netherlands.
Gerben A Te Riet O G ScholtenDepartment of Robotics and Mechatronics, University of Twente, Enschede, The Netherlands.
Martijn R MeijerinkDepartment of Radiology and Nuclear Medicine, Amsterdam University Medical Centre, Vrije Universiteit-Cancer Centre Amsterdam, Amsterdam, The Netherlands.
Jurgen J FüttererDepartment of Radiology, Nuclear Medicine and Anatomy, Radboud University Medical Centre, P.O. box 9101 (766), 6500 HB, Nijmegen, The Netherlands.
Cornelis J H M van LaarhovenDepartment of Surgery, Radboud University Medical Centre, Nijmegen, The Netherlands.
Christiaan G OverduinDepartment of Radiology, Nuclear Medicine and Anatomy, Radboud University Medical Centre, P.O. box 9101 (766), 6500 HB, Nijmegen, The Netherlands.
Martijn W J StommelDepartment of Surgery, Radboud University Medical Centre, Nijmegen, The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The final ablation zone created with irreversible electroporation (IRE) depends on the size, shape and strength of the electric field that is influenced by several parameters. A profound understanding of the effect of IRE parameter alterations on the electric field are a prerequisite for a safe and effective treatment. Here, we demonstrate a semolina in castor oil model that enables visualization of the static electric field developed by a high-voltage generator between two needle-electrodes. We intuitively visualize the variation in electric field line pattern for selected IRE parameters; active needle length, inter-needle distance, applied voltage and presence of a nearby metal stent, by cameras in three dimensions. The observations were compared to and supported by two-dimensional numerical simulations of the electric field. Our semolina model visualizes the disturbance of the electric field by a metal stent, potentially leading to an incomplete tumour ablation between the needles. The reduction in electric field strength and the area at risk for incomplete tumour ablation are confirmed by the numerical simulations. The semolina model provides insight in the fundamental physics of the electric field, the effect of alterations in IRE parameter combinations and presence of a metal stent within the ablation zone.

Identifiers

PMID32782339
PMCPMC7421881

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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.