Comparison of multistation MR angiography with integrated parallel acquisition technique versus conventional technique with a dedicated phased-array coil system in peripheral vascular disease

Journal of Vascular and Interventional Radiology : JVIR
K D HagspielNancy L Harthun

Abstract

To assess the impact of integrated parallel acquisition technique (iPAT) on signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), venous contamination, and overall image interpretability for peripheral magnetic resonance (MR) angiography with use of a dedicated phased-array coil system. Three-dimensional contrast material-enhanced conventional MR angiography and iPAT peripheral MR angiography was performed at three stations (pelvis, thigh, calf) in 38 consecutive patients on a 1.5-T high-performance cardiovascular system (conventional MR angiography, n=19; iPAT MR angiography, n=19). A total of 29 vessel segments per patient were analyzed. For each segment, arterial, muscle, and background signal were measured; SNR and CNR were calculated; and repeated-measures analysis of variance was performed. For each of the three stations, the degree of venous contamination and the overall confidence of interpretability were analyzed with use of ordinal logistic regression analysis accounting for correlated outcome data. A total of 1,018 vessel segments were available for analysis (477 with conventional MR angiography, 541 with iPAT MR angiography). Compared with conventional MR angiography, iPAT MR angiography resulted in decreased ...Continue Reading

References

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Feb 18, 2005·Radiology·Oliver A MeissnerStefan O Schoenberg

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Citations

Jun 6, 2006·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Hasan K Kabul, Klaus D Hagspiel
Dec 25, 2008·Circulation·Shellie C JosephsUNKNOWN American Heart Association Writing Group 3
Mar 24, 2010·Vascular and Endovascular Surgery·Ehab Abdel-GawadKlaus D Hagspiel
Jul 12, 2007·Journal of Magnetic Resonance Imaging : JMRI·Olaf DietrichStefan O Schoenberg

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