Evidence map›Paper›PMID 32111935›Full record

ArticleScientific reports2020

Characterization of the Airflow within an Average Geometry of the Healthy Human Nasal Cavity.

Jan Brüning, Thomas Hildebrandt, Werner Heppt, Nora Schmidt, Hans Lamecker, Angelika Szengel, Natalja Amiridze, Heiko Ramm, Matthias Bindernagel, Stefan Zachow and 1 more

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 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed.

  1. Article
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  9. Review
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  12. Laminar Fluid Ejection for Olfactory Drug Delivery: A Proof of Concept Study.IEEE journal of translational engineering in health and medicine · 2024
    Article
  13. Article
  14. Article
  15. Article
  16. Asymmetrical nasal high flow ventilation improves clearance of COJournal of applied physiology (Bethesda, Md. : 1985) · 2023
    Article
  17. Article
  18. Article
  19. Article
  20. Human Multi-CompartmentFrontiers in physiology · 2022
    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

11 authors.

Jan BrüningInstitute for Imaging Science and Computational Modelling in Cardiovascular Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany. jan.bruening@charite.de.
Thomas HildebrandtInstitute for Imaging Science and Computational Modelling in Cardiovascular Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Werner HepptDepartment of Otorhinolaryngology, Head and Neck Surgery, Städtisches Klinikum Karlsruhe, Karlsruhe, Germany.
Nora SchmidtDepartment of Otorhinolaryngology, Head and Neck Surgery, Parkklinik Weißensee, Berlin, Germany.
Hans Lamecker1000shapes GmbH, Berlin, Germany.
Angelika Szengel1000shapes GmbH, Berlin, Germany.
Natalja Amiridze1000shapes GmbH, Berlin, Germany.
Heiko Ramm1000shapes GmbH, Berlin, Germany.
Matthias Bindernagel1000shapes GmbH, Berlin, Germany.
Stefan ZachowDepartment of Visual Data Analysis - Zuse Institute Berlin (ZIB), Berlin, Germany.
Leonid GoubergritsInstitute for Imaging Science and Computational Modelling in Cardiovascular Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study's objective was the generation of a standardized geometry of the healthy nasal cavity. An average geometry of the healthy nasal cavity was generated using a statistical shape model based on 25 symptom-free subjects. Airflow within the average geometry and these geometries was calculated using fluid simulations. Integral measures of the nasal resistance, wall shear stresses (WSS) and velocities were calculated as well as cross-sectional areas (CSA). Furthermore, individual WSS and static pressure distributions were mapped onto the average geometry. The average geometry featured an overall more regular shape that resulted in less resistance, reduced WSS and velocities compared to the median of the 25 geometries. Spatial distributions of WSS and pressure of the average geometry agreed well compared to the average distributions of all individual geometries. The minimal CSA of the average geometry was larger than the median of all individual geometries (83.4 vs. 74.7 mm²). The airflow observed within the average geometry of the healthy nasal cavity did not equal the average airflow of the individual geometries. While differences observed for integral measures were notable, the calculated values for the average geometry lay within the distributions of the individual parameters. Spatially resolved parameters differed less prominently.

Indexed as

AlgorithmsModels, BiologicalNasal CavityTomography, X-Ray ComputedAdultFemaleHumansMaleRetrospective StudiesWork of Breathing

Identifiers

PMID32111935
PMCPMC7048824

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.