COMSPIRA: A common approach to spiral and radial MRI

The choice of what type of k-space coverage should be used depends on a given application and hardware limitations. So far, radial- and spiral-collected data have physical analogies in terms of sequence design, although they have not been presented, to our best knowledge, under the same pulse sequence. A mathematical formulation behind the combination of these non-Cartesian sampling methods under the same pulse sequence [(COMSPIRA) combined spiral and radial] is presented in this study. © 2004 Wiley Periodicals, Inc. Concepts Magn Reson Part B (Magn Reson Engineering) 20B: 40–44, 2004.

[1]  C. Crawford,et al.  Optimized gradient waveforms for spiral scanning , 1995, Magnetic resonance in medicine.

[2]  J. D. O'Sullivan,et al.  A Fast Sinc Function Gridding Algorithm for Fourier Inversion in Computer Tomography , 1985, IEEE Transactions on Medical Imaging.

[3]  G H Glover,et al.  Projection Reconstruction Techniques for Reduction of Motion Effects in MRI , 1992, Magnetic resonance in medicine.

[4]  P. Lauterbur,et al.  Image Formation by Induced Local Interactions: Examples Employing Nuclear Magnetic Resonance , 1973, Nature.

[5]  C. Meyer,et al.  Spiral Echo-Planar Imaging , 1998 .

[6]  G H Glover,et al.  Simple analytic spiral K‐space algorithm , 1999, Magnetic resonance in medicine.

[7]  A. Macovski,et al.  Selection of a convolution function for Fourier inversion using gridding [computerised tomography application]. , 1991, IEEE transactions on medical imaging.

[8]  C. Ahn,et al.  High-Speed Spiral-Scan Echo Planar NMR Imaging-I , 1986, IEEE Transactions on Medical Imaging.

[9]  D G Nishimura,et al.  Twisting radial lines with application to robust magnetic resonance imaging of irregular flow , 1992, Magnetic resonance in medicine.

[10]  V. Callot,et al.  Helium-3 MRI diffusion coefficient: correlation to morphometry in a model of mild emphysema , 2003, European Respiratory Journal.

[11]  D G Nishimura,et al.  Improved 2D time‐of‐flight angiography using a radial‐line k‐space acquisition , 1997, Magnetic resonance in medicine.