Aortic 4D flow: Quantification of signal‐to‐noise ratio as a function of field strength and contrast enhancement for 1.5T, 3T, and 7T

To investigate for the first time the feasibility of aortic four‐dimensional (4D) flow at 7T, both contrast enhanced (CE) and non‐CE. To quantify the signal‐to‐noise ratio (SNR) in aortic 4D flow as a function of field strength and CE with gadobenate dimeglumine (MultiHance).

[1]  K. Ugurbil,et al.  Very Fast Multi Channel B 1 Calibration at High Field in the Small Flip Angle Regime , 2008 .

[2]  Michael Markl,et al.  Bicuspid Aortic Valve Is Associated With Altered Wall Shear Stress in the Ascending Aorta , 2012, Circulation. Cardiovascular imaging.

[3]  J. Hennig,et al.  Quantitative 2D and 3D phase contrast MRI: Optimized analysis of blood flow and vessel wall parameters , 2008, Magnetic resonance in medicine.

[4]  Vahid Tarokh,et al.  Accelerated aortic flow assessment with compressed sensing with and without use of the sparsity of the complex difference image , 2013, Magnetic resonance in medicine.

[5]  G J Metzger,et al.  Initial results of cardiac imaging at 7 tesla , 2009, Magnetic resonance in medicine.

[6]  Jürgen Hennig,et al.  Highly k‐t‐space–accelerated phase‐contrast MRI , 2008, Magnetic resonance in medicine.

[7]  Matthias Gutberlet,et al.  In vitro validation of phase‐contrast flow measurements at 3 T in comparison to 1.5 T: Precision, accuracy, and signal‐to‐noise ratios , 2005, Journal of magnetic resonance imaging : JMRI.

[8]  M. Markl,et al.  Comprehensive 4D velocity mapping of the heart and great vessels by cardiovascular magnetic resonance , 2011, Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance.

[9]  Peter Boesiger,et al.  Accelerating cine phase‐contrast flow measurements using k‐t BLAST and k‐t SENSE , 2005, Magnetic resonance in medicine.

[10]  V. Lorusso,et al.  Safety, tolerance, biodistribution, and MR imaging enhancement of the liver with gadobenate dimeglumine: results of clinical pharmacologic and pilot imaging studies in nonpatient and patient volunteers. , 1999, Academic radiology.

[11]  J. Hennig,et al.  Time‐resolved 3D MR velocity mapping at 3T: Improved navigator‐gated assessment of vascular anatomy and blood flow , 2007, Journal of magnetic resonance imaging : JMRI.

[12]  F. Schick,et al.  Relaxivity of Gadopentetate Dimeglumine (Magnevist), Gadobutrol (Gadovist), and Gadobenate Dimeglumine (MultiHance) in Human Blood Plasma at 0.2, 1.5, and 3 Tesla , 2006, Investigative radiology.

[13]  M. Alley,et al.  Bicuspid Aortic Valve : Four-dimensional MR Evaluation of Ascending Aortic Systolic Flow Patterns 1 , 2010 .

[14]  Stefan Neubauer,et al.  Aortic Dilation in Bicuspid Aortic Valve Disease: Flow Pattern Is a Major Contributor and Differs With Valve Fusion Type , 2013, Circulation. Cardiovascular imaging.

[15]  David Saloner,et al.  Clinical evaluation of aortic coarctation with 4D flow MR imaging , 2010, Journal of magnetic resonance imaging : JMRI.

[16]  M. Langer,et al.  Aortic wall shear stress in Marfan syndrome , 2013, Magnetic resonance in medicine.

[17]  K Ugurbil,et al.  Comparison between eight‐ and sixteen‐channel TEM transceive arrays for body imaging at 7 T , 2012, Magnetic resonance in medicine.

[18]  Frederick H Epstein,et al.  Emerging MRI Methods in Translational Cardiovascular Research , 2011, Journal of cardiovascular translational research.

[19]  Jürgen Hennig,et al.  Four‐dimensional flow‐sensitive MRI of the thoracic aorta: 12‐ versus 32‐channel coil arrays , 2012, Journal of magnetic resonance imaging : JMRI.

[20]  M. Markl,et al.  Flow‐sensitive 4D MRI of the thoracic aorta: Comparison of image quality, quantitative flow, and wall parameters at 1.5 T and 3 T , 2012, Journal of magnetic resonance imaging : JMRI.

[21]  Peter Boesiger,et al.  k‐t BLAST and k‐t SENSE: Dynamic MRI with high frame rate exploiting spatiotemporal correlations , 2003, Magnetic resonance in medicine.

[22]  P. Boesiger,et al.  Electrodynamics and ultimate SNR in parallel MR imaging , 2004, Magnetic resonance in medicine.

[23]  P. V. van Zijl,et al.  Fast measurement of blood T1 in the human jugular vein at 3 Tesla , 2011, Magnetic resonance in medicine.

[24]  J. Hennig,et al.  4D phase contrast MRI at 3 T: Effect of standard and blood‐pool contrast agents on SNR, PC‐MRA, and blood flow visualization , 2010, Magnetic resonance in medicine.

[25]  J Keegan,et al.  A fully automatic and highly efficient navigator gating technique for high‐resolution free‐breathing acquisitions: Continuously adaptive windowing strategy , 2010, Magnetic resonance in medicine.

[26]  S. K. White,et al.  Normal variation of magnetic resonance T1 relaxation times in the human population at 1.5 T using ShMOLLI , 2013, Journal of Cardiovascular Magnetic Resonance.

[27]  Michael D Hope,et al.  4D flow CMR in assessment of valve-related ascending aortic disease. , 2011, JACC. Cardiovascular imaging.

[28]  J. Zwanenburg,et al.  Quantification and visualization of flow in the Circle of Willis: Time‐resolved three‐dimensional phase contrast MRI at 7 T compared with 3 T , 2013, Magnetic resonance in medicine.

[29]  Michael Markl,et al.  Aortic flow patterns in patients with Marfan syndrome assessed by flow‐sensitive four‐dimensional MRI , 2012, Journal of magnetic resonance imaging : JMRI.

[30]  D. Donoho,et al.  Sparse MRI: The application of compressed sensing for rapid MR imaging , 2007, Magnetic resonance in medicine.

[31]  Wilson Fong Handbook of MRI Pulse Sequences , 2005 .