Title:
Multi-echo PRESTO
Document Type and Number:
Japanese Patent JP6265976
Kind Code:
B2
Abstract:
A magnetic resonance imaging system (78) includes a magnetic resonance imaging device (80), one or more processors (104), and a display (106). The magnetic resonance imaging device (80) includes a magnet (82), gradient coils (88), and one or more radio frequency coils (92). The magnet (82) generates a Bo field. The gradient coils (88) apply gradient fields to the Bo field. The one or more radio frequency coils (92) generate a radio frequency pulse to excite magnetic resonance and measure generated gradient echoes. The one or more processors (104) are configured to activate (116) the one or more radio frequency coils (92) to generate a series of radio frequency pulses spaced by repetition times and to induce magnetic resonance. The one or more processors (104) are configured to control (118) the gradient coils to apply after each RF pulse readout gradient field pulses which refocus the resonance into a plurality of gradient echoes, shift and refocus gradient field pulses which shift and refocus at least one of the echoes to a subsequent repetition time, and receive and demodulate the gradient echoes to form k-space data lines. The one or more processors are configured to reconstruct (124) one or more images from the measured one or more gradient echoes. A display (106) displays the one or more reconstructed images.
Inventors:
Fisher, Stephanie
Jones, Craig Kenneth
Cotis, Melanie, Suzanne
Jones, Craig Kenneth
Cotis, Melanie, Suzanne
Application Number:
JP2015513333A
Publication Date:
January 24, 2018
Filing Date:
May 21, 2013
Export Citation:
Assignee:
KONINKLIJKE PHILIPS N.V.
International Classes:
A61B5/055; A61B5/05; G01N24/08
Domestic Patent References:
| JP2000511815A | ||||
| JP2001511054A | ||||
| JP2003010228A |
Foreign References:
| US20080272782 |
Other References:
Guoying Liu et al.,A Functional MRI Technique Combining Principles of Echo-Shifting with a Train of Obvervations (PRESTO),MAGNETIC RESONANCE IN MEDICINE,1993年12月 1日,vol.30, no.6,pages 764-768
JM Hoogduin et al.,Dual-Echo PRESTO: Fast 3D fMRI with simultaneous measurement of changes in baseline signal I0 and T2*,PROCEEDINGS OF THE INTERNATIONAL SOCIETY FOR MAGNETIC RESONANCE IN MEDICINE,1999年 5月22日,vol. 7,page 1763
Hans Hoogduin et al.,Multi-Echo PRESTO: T2* mapping for 3D fMRI,Proc. Intl. Soc. Reson. Med.,2000年 4月 1日,8TH ANNUAL MEETING AND EXHIBITION,page 59
S. Flacke et al.,Ultra-Fast Three-Dimensional MR Perfusion Imaging of the Entire Brain in Acute Stroke Assessment,JOURNAL OF MAGNETIC RESONANCE IMAGING,2000年 3月 1日,vol. 11, no. 3,pages 250-259
P. van Gelderen et al.,The PRESTO technique for fMRI,NeuroImage,2012年 1月 1日,vol. 62, no. 2,pages 676-681
JM Hoogduin et al.,Dual-Echo PRESTO: Fast 3D fMRI with simultaneous measurement of changes in baseline signal I0 and T2*,PROCEEDINGS OF THE INTERNATIONAL SOCIETY FOR MAGNETIC RESONANCE IN MEDICINE,1999年 5月22日,vol. 7,page 1763
Hans Hoogduin et al.,Multi-Echo PRESTO: T2* mapping for 3D fMRI,Proc. Intl. Soc. Reson. Med.,2000年 4月 1日,8TH ANNUAL MEETING AND EXHIBITION,page 59
S. Flacke et al.,Ultra-Fast Three-Dimensional MR Perfusion Imaging of the Entire Brain in Acute Stroke Assessment,JOURNAL OF MAGNETIC RESONANCE IMAGING,2000年 3月 1日,vol. 11, no. 3,pages 250-259
P. van Gelderen et al.,The PRESTO technique for fMRI,NeuroImage,2012年 1月 1日,vol. 62, no. 2,pages 676-681
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Shinsuke Onuki
Tadahiko Ito
Shinsuke Onuki
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