In Vitro Validation of Phase Contrast Measurements at 3T versus 1.5T
R Doeker, M Gutberlet, GP Meyer, R Noeske, R Felix, M Galanski, J Lotz · RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren · 2004 · Heft 03
Bibliografische Angaben
Zusammenfassung
Purpose: Gated, fast cine phase contrast (PC) MR imaging provides the ability to measure blood flow in vessels within a breath-hold period. The increase in signal-to-noise ratio (SNR) of 3T compared to 1.5T might increase the accuracy of quantitative flow measurements. Therefore, the aim of this study is to compare PC flow measurements at 1.5T and 3T in vitro. Methods: An in vitro flow model was used to generate a laminar steady flow in glass tubes (inner diameter 4–8mm) embedded in Gd-doted agar gel. Flow was measured by an inductive flow meter. Experiments were performed on a 3.0 Tesla Signa and 1.5 Tesla Sign…
