Title |
SPARE: A Robust Method for Magnetic Resonance Imaging in Inhomogeneous Fields
|
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Published in |
Journal of Magnetic Resonance, January 1998
|
DOI | 10.1006/jmre.1997.1256 |
Pubmed ID | |
Authors |
D.J.O. McIntyre, F. Hennel, P.G. Morris |
Abstract |
An imaging sequence based on a spin-echo train has been developed which is free from geometric distortions in the imaging plane due to main field inhomogeneity. Such inhomogeneities, and chemical shifts, cause only a displacement in the selected slice, which is minimized by the use of high gradient strengths and short radiofrequency pulses. Additionally, variations in the radiofrequency field strength cause variations in the image amplitude but cause no other artifacts. This allows the use of low-flip-angle refocusing pulses, reducing the power deposition to levels which are safe in vivo at high field strengths. The sequence was implemented on a Bruker whole-body 3T system. Example images from a perfluorocarbon phantom and a human head are presented. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 1 | 5% |
Germany | 1 | 5% |
Unknown | 18 | 90% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 8 | 40% |
Other | 3 | 15% |
Student > Ph. D. Student | 2 | 10% |
Unspecified | 1 | 5% |
Student > Doctoral Student | 1 | 5% |
Other | 3 | 15% |
Unknown | 2 | 10% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 4 | 20% |
Physics and Astronomy | 3 | 15% |
Chemistry | 3 | 15% |
Unspecified | 2 | 10% |
Engineering | 2 | 10% |
Other | 3 | 15% |
Unknown | 3 | 15% |