Evidence map›Paper›PMID 33146849›Full record

ArticleInternational journal of computer assisted radiology and surgery2021

The effect of artificial X-rays on C-arm positioning performance in a simulated orthopaedic surgical setting.

Michèle Touchette, Robyn Newell, Carolyn Anglin, Pierre Guy, Kelly Lefaivre, Meena Amlani, Antony Hodgson

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In one paragraph

Article in International journal of computer assisted radiology and surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. 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

7 authors.

Michèle TouchetteDepartment of Mechanical Engineering, University of British Columbia, Vancouver, V6T 1Z4, Canada. mtouchette2@gmail.com.ORCID http://orcid.org/0000-0002-1491-4597
Robyn NewellDepartment of Mechanical Engineering, University of British Columbia, Vancouver, V6T 1Z4, Canada.
Carolyn AnglinDepartment of Civil Engineering, University of Calgary, Calgary, T2N 1N4, Canada.
Pierre GuyDepartment of Orthopaedics, University of British Columbia, Vancouver, V5Z 1M9, Canada.
Kelly LefaivreDepartment of Orthopaedics, University of British Columbia, Vancouver, V5Z 1M9, Canada.
Meena AmlaniMedical Radiography, British Columbia Institute of Technology, Burnaby, V5G 3H2, Canada.
Antony HodgsonDepartment of Mechanical Engineering, University of British Columbia, Vancouver, V6T 1Z4, Canada.

Funding

Collaborative Health Research Project (CHRP): Natural Sciences and Engineering Research Council of Canada (NSERC) and Canadian Institute of Health Research (CIHR) 214110
6 · The paper itself

Abstract

purposeWe designed an Artificial X-ray Imaging System (AXIS) that generates simulated fluoroscopic X-ray images on the fly and assessed its utility in improving C-arm positioning performance by C-arm users with little or no C-arm experience.

methodsThe AXIS system was comprised of an optical tracking system to monitor C-arm movement, a manikin, a reference CT volume registered to the manikin, and a Digitally Reconstructed Radiograph algorithm to generate live simulated fluoroscopic images. A user study was conducted with 30 participants who had little or no C-arm experience. Each participant carried out four tasks using a real C-arm: an introduction session, an AXIS-guided set of pelvic imaging tasks, a non-AXIS guided set of pelvic imaging tasks, and a questionnaire. For each imaging task, the participant replicated a set of three target X-ray images by taking real radiographs of a manikin with a C-arm. The number of X-rays required, task time, and C-arm positioning accuracy were recorded.

resultsWe found a significant 53% decrease in the number of X-rays used and a moderate 10-26% improvement in lateral C-arm axis positioning accuracy without requiring more time to complete the tasks when the participants were guided by artificial X-rays. The questionnaires showed that the participants felt significantly more confident in their C-arm positioning ability when they were guided by AXIS. They rated the usefulness of AXIS as very good to excellent, and the realism and accuracy of AXIS as good to very good.

conclusionNovice users working with a C-arm machine supplemented with the ability to generate simulated X-ray images could successfully accomplish positioning tasks in a simulated surgical setting using markedly fewer X-ray images than when unassisted. In future work, we plan to determine whether such a system can produce similar results in the live operating room without lengthening surgical procedures.

Indexed as

AlgorithmsCone-Beam Computed TomographyFluoroscopyHumansImaging, Three-DimensionalManikinsOrthopedic ProceduresX-RaysArtificial X-raysC-armRadiationVirtual fluoroscopy

Identifiers

PMID33146849

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.