Evidence map›Paper›PMID 36820960›Full record

ArticleThe international journal of cardiovascular imaging2023

Super-resolution 4D flow MRI to quantify aortic regurgitation using computational fluid dynamics and deep learning.

Derek Long, Cameron McMurdo, Edward Ferdian, Charlène A Mauger, David Marlevi, Martyn P Nash, Alistair A Young

Abstract read
In one paragraph

Article in The international journal of cardiovascular imaging, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. 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

7 authors.

Derek LongDepartment of Engineering Science, University of Auckland, Auckland, New Zealand. dlon450@aucklanduni.ac.nz.
Cameron McMurdoDepartment of Engineering Science, University of Auckland, Auckland, New Zealand.
Edward FerdianDepartment of Anatomy and Medical Imaging, University of Auckland, Auckland, New Zealand.
Charlène A MaugerAuckland Bioengineering Institute, University of Auckland, Auckland, New Zealand.
David MarleviInstitute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA.
Martyn P NashDepartment of Engineering Science, University of Auckland, Auckland, New Zealand.
Alistair A YoungDepartment of Anatomy and Medical Imaging, University of Auckland, Auckland, New Zealand.

Funding

The Cardiac Atlas ProjectR01HL121754 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI MCCULLOCH, ANDREW D., OMENS, JEFFREY H. · 2014 to 2023
$5.0M
NHLBI NIH HHS R01 HL121754
6 · The paper itself

Abstract

Changes in cardiovascular hemodynamics are closely related to the development of aortic regurgitation (AR), a type of valvular heart disease. Metrics derived from blood flows are used to indicate AR onset and evaluate its severity. These metrics can be non-invasively obtained using four-dimensional (4D) flow magnetic resonance imaging (MRI), where accuracy is primarily dependent on spatial resolution. However, insufficient resolution often results from limitations in 4D flow MRI and complex aortic regurgitation hemodynamics. To address this, computational fluid dynamics simulations were transformed into synthetic 4D flow MRI data and used to train a variety of neural networks. These networks generated super-resolution, full-field phase images with an upsample factor of 4. Results showed decreased velocity error, high structural similarity scores, and improved learning capabilities from previous work. Further validation was performed on two sets of in vivo 4D flow MRI data and demonstrated success in de-noising flow images. This approach presents an opportunity to comprehensively analyse AR hemodynamics in a non-invasive manner.

Indexed as

Aortic Valve InsufficiencyDeep LearningBlood Flow VelocityHemodynamicsHumansHydrodynamicsImaging, Three-DimensionalMagnetic Resonance ImagingPredictive Value of TestsAortic regurgitationComputational fluid dynamics (CFD)Deep learningFour-dimensional flow magnetic resonance imaging (4D flow MRI)Super-resolution

Identifiers

PMID36820960
PMCPMC10220149

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Registered trials

None linked

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.