Abstract
In this work we present a method to combine complex-valued phased array MR data based on a uniform sensitivity approach, which incorporates sensitivity profiles calculated from afore acquired data. The algorithm was implemented on a clinical 3T whole-body MR-Scanner and embedded into the vendor-specific standard reconstruction chain.
Additionally, it was linked with the GeneRalized Autocalibrating Partial Parallel Acquisition (GRAPPA) procedure to take advantage of partial parallel acquisition techniques as well. Thus, under-sampled data can be reconstructed with GRAPPA and subsequently combined with the presented method. Phase images reconstructed with the proposed method were in excellent agreement with reference data and did not suffer from errors due to incorrectly combined data.
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Rerferences
Jezzard P, Balaban RS (1995) Correction for geometric distortion in echo planar images from B0 field variations. Magn Reson Med 34(1):65–73
Dumoulin CL (1995) Phase contrast MR angiography techniques. Magn Reson Imaging Clin N Am 3(3):399–411
Reichenbach JR, Venkatesan R et al. (1997) Small vessels in the human brain: MR venography with deoxyhemoglobin as an intrinsic contrast agent. Radiology 204(1):272–277
Reichenbach JR, Haacke EM (2001) High-resolution BOLD venographic imaging: a window into brain function. NMR Biomed 14(7–8):453–467
Herrmann K-H, Rauscher A et al. (2006) Improved contrast in dynamic contrast enhanced MRI by combining complex in-phase and opposed-phase data: simulations and phantom experiment, Proc Intl Soc Mag Reson Med 14, Seattle, Washington, USA, 2006, p 1537
Noll DC, Nishimura DG et al. (1991) Homodyne Detection in Magnetic Resonance Imaging. IEEE Trans Med Imag 10(2):154–163
Roemer PB, Edelstein WA et al. (1990) The NMR phased array. Magn Reson Med 16(2):192–225
Griswold MA, Jakob PM et al. (2002) Generalized autocalibrating partially parallel acquisitions (GRAPPA). Magn Reson Med 47(6):1202–1210
Walsh DO, Gmitro AF et al. (2000) Adaptive reconstruction of phased array MR imagery. Magn Reson Med 43(5):682–690
Kittler J, Illingworth J (1986) Minimum error thresholding. Pat Rec 19(1):41–47
Pruessmann KP, Weiger M et al. (1999) SENSE: Sensitivity Encoding for Fast MRI. Magn Reson Med 42(5):952–962
Ben-Israel A, Greville TNE (2003) Generalized Inverses-Theory and Applications. Springer, Berlin
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© 2009 Springer-Verlag Berlin Heidelberg
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Ros, C., Witoszynskyj, S., Herrmann, K.H., Reichenbach, J.R. (2009). Reconstruction of phase images for GRAPPA accelerated Magnetic Resonance Imaging. In: Vander Sloten, J., Verdonck, P., Nyssen, M., Haueisen, J. (eds) 4th European Conference of the International Federation for Medical and Biological Engineering. IFMBE Proceedings, vol 22. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-89208-3_192
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DOI: https://doi.org/10.1007/978-3-540-89208-3_192
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-89207-6
Online ISBN: 978-3-540-89208-3
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