Evidence map›Paper›PMID 32231378›Full record

ArticlePloS one2020

In-Vitro MPI-guided IVOCT catheter tracking in real time for motion artifact compensation.

Florian Griese, Sarah Latus, Matthias Schlüter, Matthias Graeser, Matthias Lutz, Alexander Schlaefer, Tobias Knopp

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In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

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

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

  1. 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

7 authors.

Florian GrieseInstitute for Biomedical Imaging, Hamburg University of Technology, Hamburg, Germany.ORCID 0000-0003-3309-9783
Sarah LatusInstitute of Medical Technology, Hamburg University of Technology, Hamburg, Germany.
Matthias SchlüterInstitute of Medical Technology, Hamburg University of Technology, Hamburg, Germany.ORCID 0000-0002-2019-1102
Matthias GraeserInstitute for Biomedical Imaging, Hamburg University of Technology, Hamburg, Germany.
Matthias LutzDepartment of Internal Medicine, University Medical Center Schleswig-Holstein, Kiel, Germany.
Alexander SchlaeferInstitute of Medical Technology, Hamburg University of Technology, Hamburg, Germany.
Tobias KnoppInstitute for Biomedical Imaging, Hamburg University of Technology, Hamburg, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeUsing 4D magnetic particle imaging (MPI), intravascular optical coherence tomography (IVOCT) catheters are tracked in real time in order to compensate for image artifacts related to relative motion. Our approach demonstrates the feasibility for bimodal IVOCT and MPI in-vitro experiments. MATERIAL AND

methodsDuring IVOCT imaging of a stenosis phantom the catheter is tracked using MPI. A 4D trajectory of the catheter tip is determined from the MPI data using center of mass sub-voxel strategies. A custom built IVOCT imaging adapter is used to perform different catheter motion profiles: no motion artifacts, motion artifacts due to catheter bending, and heart beat motion artifacts. Two IVOCT volume reconstruction methods are compared qualitatively and quantitatively using the DICE metric and the known stenosis length.

resultsThe MPI-tracked trajectory of the IVOCT catheter is validated in multiple repeated measurements calculating the absolute mean error and standard deviation. Both volume reconstruction methods are compared and analyzed whether they are capable of compensating the motion artifacts. The novel approach of MPI-guided catheter tracking corrects motion artifacts leading to a DICE coefficient with a minimum of 86% in comparison to 58% for a standard reconstruction approach.

conclusionsIVOCT catheter tracking with MPI in real time is an auspicious method for radiation free MPI-guided IVOCT interventions. The combination of MPI and IVOCT can help to reduce motion artifacts due to catheter bending and heart beat for optimized IVOCT volume reconstructions.

Indexed as

ArtifactsCathetersMovementImaging, Three-DimensionalPhantoms, ImagingTomography, Optical Coherence

Identifiers

PMID32231378
PMCPMC7108728

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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.