Respiratory dependent stroke volume changes assessed by real time MR velocity mapping at 3 Tesla – A validation study
H Körperich, P Barth, J Gieseke, H Esdorn, A Peterschröder, G Uges, D Kececioglu, W Burchert, KT Laser · RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren · 2012 · Heft 01
Bibliografische Angaben
Zusammenfassung
Background: Respiration has a strong impact on stroke volumes (SV) in great thoracic vessels [1]. Conventional MR techniques for quantitative flow (QF) measurements are unsuitable to differentiate between different respiration phases due to its averaging character. Real time flow velocity mapping may provide unique hemodynamic information that is not available with other methods. Methods: QF measurements were performed on a 3T-TX MR scanner (Philips) using a non-triggered, free-breathing, real-time phase-contrast EPI sequence (RT-QF). In-plane resolution was 2.7×2.7mm2, slice thickness 6mm. To keep temporal reso…
