Evidence map›Paper›PMID 26747260›Full record

ArticleEuropean radiology2016

Assessment of intracardiac flow and vorticity in the right heart of patients after repair of tetralogy of Fallot by flow-sensitive 4D MRI.

Daniel Hirtler, Julio Garcia, Alex J Barker, Julia Geiger

Open access · greenAbstract read
In one paragraph

Article in European radiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 5% of its field
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

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 67 citations in OpenAlex.

  1. Four-dimensional flow cardiovascular magnetic resonance in tetralogy of Fallot: a systematic review.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2021
    Pooled it
  2. Article
  3. Article
  4. Ferumoxytol-enhanced cardiovascular magnetic resonance imaging: applications and technical advances.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2025
    Review
  5. Article
  6. Assessment of abnormal transvalvular flow and wall shear stress direction for pediatric/young adults with bicuspid aortic valve: A cross-sectional four-dimensional flow study.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2024
    Article
  7. Society for Cardiovascular Magnetic Resonance 2022 Cases of SCMR case series.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2024
    Review
  8. Review
  9. Article
  10. Intracardiac Flow Analysis of the Right Ventricle in Pediatric Patients With Repaired Tetralogy of Fallot Using a Novel Color Doppler Velocity Reconstruction.Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography · 2023
    Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Moving beyond size: vorticity and energy loss are correlated with right ventricular dysfunction and exercise intolerance in repaired Tetralogy of Fallot.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2021
    Article
  18. Article
  19. Review
  20. 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

4 authors at 3 institutions in 3 countries.

Daniel HirtlerDepartment of Congenital Heart Defects and Pediatric Cardiology (Heart Center, University of Freiburg), University Hospital Freiburg, Mathildenstr. 1, 79106, Freiburg, Germany. Daniel.Hirtler@uniklinik-freiburg.de.
Julio GarciaDepartment of Radiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
Alex J BarkerDepartment of Radiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
Julia GeigerDepartment of Radiology, University Childrens' Hospital Zurich, Zurich, Switzerland.
Northwestern University · USUniversity Children's Hospital Zurich · CHUniversity of Freiburg · DE

Funding

Hemodynamic Loading of the Left Ventricle and Aorta in Aortic Valve DiseaseK25HL119608 · NHLBI · UNIVERSITY OF COLORADO DENVER · PI BARKER, ALEXANDER J. · 2014 to 2018
$819k
NHLBI NIH HHS K25 HL119608
6 · The paper itself

Abstract

objectivesTo comprehensively and quantitatively analyse flow and vorticity in the right heart of patients after repair of tetralogy of Fallot (rTOF) compared with healthy volunteers.

methodsTime-resolved flow-sensitive 4D MRI was acquired in 24 rTOF patients and 12 volunteers. Qualitative flow evaluation was based on consensus reading of two observers. Quantitative analysis included segmentation of the right atrium (RA) and ventricle (RV) in a four-chamber view to extract volumes and regional haemodynamic information for computation of regional mean and peak vorticity.

resultsRight heart intra-atrial, intraventricular and outflow tract flow patterns differed considerably between rTOF patients and volunteers. Peak RA and mean RV vorticity was significantly higher in patients (p = 0.02/0.05). Significant negative correlations were found between patients' maximum and mean RV and RA vorticity and ventricular volumes (p < 0.05). The main pulmonary artery (MPA) regurgitant flow was associated with higher RA and RV vorticity, which was significant for RA maximum and RV mean vorticity (p = 0.01/0.03).

conclusionThe calculation of vorticity based on 4D flow data is an alternative approach to assess intracardiac flow changes in rTOF patients compared with qualitative flow visualization. Alterations in intracardiac vorticity could be relevant with regard to the development of RV dilation and impaired function. KEY POINTS: • 4D flow MRI with vorticity calculation enables a novel approach to assess intracardiac flow. • Significantly higher intracardiac vorticity occurred in patients after repair of tetralogy of Fallot. • Regurgitant flow in the main pulmonary artery is associated with higher right heart vorticity.

Indexed as

AdolescentAdultChildChild, PreschoolCoronary CirculationFemaleHeart AtriaHeart VentriclesHemodynamicsHumansImaging, Three-DimensionalInfantMagnetic Resonance ImagingMaleTetralogy of FallotYoung Adult4D flow MRIIntracardiac flowRight heartTetralogy of FallotVorticity

Identifiers

PMID26747260
PMCPMC4938791
OpenAlexW2239597771

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.