Four-dimensional, flow-sensitive magnetic resonance imaging of blood flow patterns in thoracic aortic dissections

François, Christopher J.; Markl, Michael; Schiebler, Mark L.; Niespodzany, Eric; Landgraf, Benjamin R; Schlensak, Christian; Frydrychowicz, Alex

doi:10.1016/j.jtcvs.2012.07.019

Cited by 81 publications

(80 citation statements)

References 24 publications

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“…Furthermore, blood‐flow quantification and velocity mapping can demonstrate bidirectional flow within a false lumen that exhibits partial thrombosis. This turbulent or helical flow can induce aortic wall shear stress, which may be associated with an elevated risk of aneurysmal dilatation or tear 33, 35, 36. Therefore, partial thrombosis of the false lumen in patients with AAD may be reflective of a clinical context in which multiple risk factors exist.…”

Section: Discussionmentioning

confidence: 99%

False Lumen Status in Patients With Acute Aortic Dissection: A Systematic Review and Meta‐Analysis

et al. 2016

JAHA

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BackgroundThe long‐term association between the status of the false lumen and poor patient outcomes in acute aortic dissection (AAD) remains unclear. This systematic review and meta‐analysis investigated whether the status of the false lumen was a predictor of poor long‐term survival in AAD.Methods and ResultsEleven cohort studies (2924 participants) exploring the association between the false lumen status and long‐term outcomes (>1 year) in AAD were included. All studies reported multivariate‐adjusted hazard ratios (HRs) with 95% CIs for long‐term outcomes, according to false lumen status. Pooled HRs for mortality and aortic events were computed and weighted using generic inverse‐variance and random‐effect modeling. Residual patent false lumen was an independent predictor of long‐term mortality in AAD type A (HR, 1.71; 95% CI, 1.16–2.52; P=0.007) and type B (HR, 2.79; 95% CI, 1.80–4.32; P<0.001). AAD patients with residual patent false lumen exhibited an increased risk of aortic events (HR, 5.43; 95% CI, 2.95–9.99; P<0.001). Partial false lumen thrombosis was independently associated with long‐term mortality in type B AAD (HR, 2.24; 95% CI, 1.37–3.65; P=0.001). This association was not observed in AAD type A patients (HR, 1.75; 95% CI, 0.88–3.45; P=0.211).ConclusionsThe false lumen status influences late outcomes in AAD. Residual patent false lumen is independently associated with poor long‐term survival in AAD. However, only type B AAD patients with partial false lumen thrombosis had an increased late mortality risk.

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Section: Discussionmentioning

confidence: 99%

False Lumen Status in Patients With Acute Aortic Dissection: A Systematic Review and Meta‐Analysis

et al. 2016

JAHA

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“…MRI has an excellent diagnostic capability that is comparable with CTA and TOE and can be used for both pre-operative planning and follow up. 23 A major advantage of MRI is that it offers multiplanar evaluation with good differentiation between different soft tissues. Moreover, MRI can provide additional dynamic imaging regarding entry tear flow or arterial vessel involvement.…”

Section: Recommenda On 1 Level Of Evidence Referencesmentioning

confidence: 99%

“…Moreover, MRI can provide additional dynamic imaging regarding entry tear flow or arterial vessel involvement. 23 Although contrast is not usually required, the use of gadolinium enhances the quality of MRI. MRI can be used to visualize the aortic wall in detail and is, therefore, more commonly used in patients with aortic wall pathologies such as IMH or aortitis.…”

Section: Recommenda On 1 Level Of Evidence Referencesmentioning

confidence: 99%

Editor's Choice – Management of Descending Thoracic Aorta Diseases

Riambau¹,

Böckler²,

Brunkwall³

et al. 2017

European Journal of Vascular and Endovascular Surgery

957

259

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“…A voxel size with an isotropic edge length of 2.5 -3.0 mm for the heart and thoracic/abdominal vessels and 0.7 -1.5 mm for intracranial vessels has become established [1]. The highest possible temporal resolution of approximately 40 ms per 3 D dataset is needed to be able to record even brief flow phenomena [2]. ▶ Table 1 summarizes useful benchmarks for spatial and temporal resolution as well as the field of view.…”

Section: Techniquementioning

confidence: 99%

4D-Flow MRI: Technique and Applications

Sträter

Huber

Rudolph

et al. 2018

Fortschr Röntgenstr

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ABSTR AC TBackground Blood flow through the cavities of the heart and great vessels is pulsatile and is subject to time and multidirectional variations. To date, the recording of blood flow in multiple directions and phases has been limited. 4D-flow MRI offers advantages for the recording, visualization and analysis of blood flow.Method The status quo of the method was summarized through analysis with the PubMed database using the keywords "4D-flow MRI, phase-contrast magnetic resonance imaging, MR flow imaging/visualization, MR flow quantification, 3 D cine (time-resolved) phase-contrast CMR, threedirectional velocity-encoding MRI". Methode Basierend auf einer Literaturrecherche in der PubMed-Datenbank mit den Begriffen "4D-Flow-MRI, Phasecontrast magnetic-resonance-imaging, MR-flow-imaging/-visualization, MR-Flow-quantification, 3D-cine (time-resolved) phase-contrast CMR, three-directional velocity-encoding MR" wurde der aktuelle Stand der Methode in dieser Über-sichtsarbeit zusammengefasst.Ergebnisse/Schlussfolgerung Diese Übersichtsarbeit fasst den aktuellen Stand der technischen Entwicklung der 4D-Flussmessung zusammen, diskutiert ihre Vor-und Nachteile und zeigt Anwendungsmöglichkeiten auf. Schließlich werden die wichtigsten Prinzipien und Parameter erklärt, sodass der Leser über die Anwendung der Methode, die möglichen klinischen Indikationen, die Auswertung verschiedener Parameter durch Post-processing-Methoden und die Limitationen des Verfahrens relevante Informationen erhält. Review 1025Sträter A et al. 4D-Flow

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Four-dimensional, flow-sensitive magnetic resonance imaging of blood flow patterns in thoracic aortic dissections

Cited by 81 publications

References 24 publications

False Lumen Status in Patients With Acute Aortic Dissection: A Systematic Review and Meta‐Analysis

False Lumen Status in Patients With Acute Aortic Dissection: A Systematic Review and Meta‐Analysis

Editor's Choice – Management of Descending Thoracic Aorta Diseases

4D-Flow MRI: Technique and Applications

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