TY - JOUR
AU - Konijn, J.
AB - A new method for fast magnetic resonance imaging is presented. It provides a more rapid data acquisition than two‐dimensional Fourier imaging (2DFI) by a factor which may be chosen depending on the required signal‐to‐noise ratio of the image. In addition to the readout gradient of 2DFI, the present method employs an oscillating modulation gradient. In this way, a curved alternating trajectory in ; k space is sampled after each spin excitation. For a p ‐times accelerated data acquisition, the trajectory consists of ; p periods, where p is of the order of 2 to 8 for low‐frequency gradient modulation but can be chosen higher if certain hardware requirements are met. Adequate sampling density in ; k space is obtained by scanning shifted trajectories after subsequent spin excitations. The method can be combined with volume imaging (3DFI) and multiple slice 2DFI. It was implemented on a standard Philips Gyroscan system without any hardware modifications. Results obtained for an acceleration factor p =4 are shown.
TI - Magnetic resonance fast Fourier imaging
JF - Medical Physics
DO - 10.1118/1.595905
DA - 1986-03-01
UR - https://www.deepdyve.com/lp/american-association-of-physicists-in-medicine/magnetic-resonance-fast-fourier-imaging-r7jVTe6Xlx
SP - 248
EP - 253
VL - 13
IS - 2
DP - DeepDyve
ER -