Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

 
 
DownloadE-Mail
  Real-time phase-contrast flow MRI of haemodynamic changes in the ascending aorta and superior vena cava during Mueller manoeuvre.

Fasshauer, M., Joseph, A., Kowallick, J. T., Unterberg-Buchwald, C., Merboldt, K. D., Voit, D., et al. (2014). Real-time phase-contrast flow MRI of haemodynamic changes in the ascending aorta and superior vena cava during Mueller manoeuvre. Clinical Radiology, 69(10), 1066-1071. doi:10.1016/j.crad.2014.06.004.

Item is

Dateien

einblenden: Dateien
ausblenden: Dateien
:
2069588.pdf (Verlagsversion), 809KB
Name:
2069588.pdf
Beschreibung:
-
OA-Status:
Sichtbarkeit:
Öffentlich
MIME-Typ / Prüfsumme:
application/pdf / [MD5]
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-
Lizenz:
-
:
2069588_Suppl_1.htm (Ergänzendes Material), 51KB
Name:
2069588_Suppl_1.htm
Beschreibung:
-
OA-Status:
Sichtbarkeit:
Öffentlich
MIME-Typ / Prüfsumme:
text/html / [MD5]
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-
Lizenz:
-
:
2069588_Suppl_2.htm (Ergänzendes Material), 51KB
Name:
2069588_Suppl_2.htm
Beschreibung:
-
OA-Status:
Sichtbarkeit:
Öffentlich
MIME-Typ / Prüfsumme:
text/html / [MD5]
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-
Lizenz:
-

Urheber

einblenden:
ausblenden:
 Urheber:
Fasshauer, M., Autor
Joseph, A.1, Autor           
Kowallick, J. T., Autor
Unterberg-Buchwald, C., Autor
Merboldt, K. D., Autor
Voit, D.1, Autor           
Steinmetz, M., Autor
Staab, W., Autor
Schätz, S.1, Autor           
Zhang, S.1, Autor           
Frahm, J.1, Autor           
Lotz, J., Autor
Sohns, J. M., Autor
Affiliations:
1Biomedical NMR Research GmbH, MPI for biophysical chemistry, Max Planck Society, ou_578634              

Inhalt

einblenden:
ausblenden:
Schlagwörter: -
 Zusammenfassung: AIM: To evaluate the potential of real-time phase-contrast flow magnetic resonance imaging (MRI) at 40 ms resolution for the simultaneous determination of blood flow in the ascending aorta (AA) and superior vena cava (SVC) in response to reduced intrathoracic pressure (Mueller manoeuvre). MATERIALS AND METHODS: Through-plane flow was assessed in 20 healthy young subjects using real-time phase-contrast MRI based on highly undersampled radial fast low-angle shot (FLASH) with image reconstruction by regularized non-linear inversion. Haemodynamic alterations (three repetitions per subject = 60 events) were evaluated during normal breathing (10 s), inhalation with nearly closed epiglottis (10 s), and recovery (20 s). RESULTS: Relative to normal breathing and despite interindividual differences, reduced intrathoracic pressure by at least 30 mmHg significantly decreased the initial peak mean velocity (averaged across the lumen) in the AA by -24 +/- 9% and increased the velocity in the SVC by +28 +/- 25% (p < 0.0001, n = 23 successful events). Respective changes in flow volume per heartbeat were -25 +/- 9% in the AA and +49 +/- 44% in the SVC (p < 0.0001, n = 23). Flow parameters returned to baseline during sustained pressure reduction, while the heart rate was elevated by 10% (p < 0.0001) after the start (n = 24) and end (n = 17) of the manoeuvre. CONCLUSIONS: Real-time flow MRI during low intrathoracic pressure non-invasively revealed quantitative haemodynamic adjustments in both the AA and SVC. (C) 2014 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved.

Details

einblenden:
ausblenden:
Sprache(n): eng - English
 Datum: 2014-07-222014-10
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1016/j.crad.2014.06.004
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Clinical Radiology
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 69 (10) Artikelnummer: - Start- / Endseite: 1066 - 1071 Identifikator: -