Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Patent
1997-02-05
1998-10-20
Lateef, Marvin M.
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
324309, 324320, A61B 5055
Patent
active
058239596
ABSTRACT:
The invention relates to an MR method for determining the frequency map in an examination zone as well as to an appropriate sequence in which the nuclear magnetization is read in conjunction with the read gradient of varying direction. Subsequent to an excitation of the nuclear magnetization, a plurality of MR echo signals are acquired. From the sub-images acquired with different echo times on the one hand the frequency map can be derived whereas on the other hand these sub-images can be combined so as to form an MR overall image of higher spatial resolution. The invention also relates to a device for carrying out this method.
REFERENCES:
patent: 4797615 (1989-01-01), Rotem et al.
patent: 4896113 (1990-01-01), Pelc
patent: 4987371 (1991-01-01), Glover et al.
patent: 5168232 (1992-12-01), Glover et al.
patent: 5307808 (1994-05-01), Dumoulin
patent: 5539289 (1996-07-01), van der Meulen
patent: 5539316 (1996-07-01), Sukumar
patent: 5587658 (1996-12-01), Sukumar
patent: 5617029 (1997-04-01), Schneider
"Fast Magnetic Resonance Imagin with Simultaneously Oscillating and Rotating Field Gradients" Stephen J. Norton, IEEE Transactions on Medical Imaging, vol. MI-6, No. 1, Mar. 1987, pp. 21-31.
Lateef Marvin M.
Renfrew, Jr. Dwight H.
Shaw Shawna J.
U.S. Philips Corporation
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