Frequency swept excitation for magnetic resonance

Details Frequency swept excitation for magnetic resonance Frequency swept excitation for magnetic resonance

2008-09-16

2008-09-16

Shrivastav, Brij B. (Department: 2831)

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

Reexamination Certificate

active

11548691

ABSTRACT:
A method of magnetic resonance is provided that uses a frequency swept excitation wherein the acquired signal is a time domain signal is provided. In one embodiment, the method comprises, applying a sweeping frequency excitation and acquiring a time domain signal. The sweeping frequency excitation has a duration and is configured to sequentially excite isochromats having different resonant frequencies. Acquisition of the time domain signal is done during the duration of the sweeping frequency excitation. The time domain signal is based on evolution of the isochromats.

REFERENCES:
patent: 3968424 (1976-07-01), Ernst
patent: 3975675 (1976-08-01), Dunand et al.
patent: 4209843 (1980-06-01), Hyatt
patent: 4553213 (1985-11-01), Hyatt
patent: 4553221 (1985-11-01), Hyatt
patent: 4581715 (1986-04-01), Hyatt
patent: 4602641 (1986-07-01), Feinberg
patent: 4658252 (1987-04-01), Rowe
patent: 4686655 (1987-08-01), Hyatt
patent: 4944036 (1990-07-01), Hyatt
patent: 5053983 (1991-10-01), Hyatt
patent: 5248882 (1993-09-01), Liang
patent: 5869959 (1999-02-01), Tomikawa
patent: 6201392 (2001-03-01), Anderson et al.
patent: 6392408 (2002-05-01), Barrall et al.
patent: 6740518 (2004-05-01), Duong et al.
patent: 2005/0016276 (2005-01-01), Guan et al.
patent: WO 96/10193 (1996-04-01), None
Idiyatullin et al., “Fast and quiet MRI using a swept radiofrequency”,Journal of Magnetic Resonance, Academic Press, Orlando, FL., vol. 181, No. 2, Aug. 2006, pp. 342-349, XP005569620 ISSN: 1090-7807.
Joshi, J. P. et al., “Rapid-scan EPR with triangular scans and fourier deconvolution to recover the slow-scan spectrum”,Journal of Magnetic Resonance, Academic Press, Orlando, FL., vol. 175, No. 1, Jul. 2005, pp. 44-51, XP004929524.
R.K. Gupta et al., “Rapid Scan Fourier Transform NMR Spectroscopy”,Journal of Magnetic Resonance, vol. 13, 1974, pp. 275-290, XP009076756.
Sindorf, D.W. et al., “Wide-Line NMR Spectroscopy in Solids Using Variable Frequency Pulses”,Journal of Magnetic Resonance, Academic Press, Orlando, FL, vol. 85, No. 3, Dec. 1, 1989, pp. 581-585, XP000102286 ISSN: 1090-7807.
Davies, G.R. et al., “Continuous-Wave Magnetic Resonance Imaging of Short T2 Materials”,Journal of Magnetic Resonance, Academic Press, Orlando, FL, vol. 148, No. 2, Feb. 2001, pp. 289-297., XP004406677.
J.W. Stoner et al., “Direct-detected rapid-scan EPR at 250 MHz”,Journal of Magnetic Resonance, vol. 170, 2004, pp. 127-135, XP002414028.
J.-Y. Park et al., “Imaging Pseudo-Echoes Produced by a Frequency-Swept Pulse”,Proc. Intl. Soc. Mag. Reson. Med. 11, 2004, p. 534, XP002414030.
Gatehouse, P.D. et al., “Magnetic Resonance Imaging of Short T2 Components in Tissue”,Clinical Radiology, Livingstone, Harlow, GB, vol. 58, No. 1, Jan. 2003, pp. 1-19, XP009033520, ISSN: 0009-9260.
Madio, D.P. et al., “Ultra-Fast Imaging Using Low Flip Angles and Fids”,Magnetic Resonance In Medicine, Academic Press, Duluth, MN, vol. 34, No. 4, Oct. 1, 1995, pp. 525-529, XP000535685, ISSN: 0740-3194.
A.H. Herlihy et al., “Continuous Scanning using Single Fast Spin Echo on a Short Bore Neonatal Scanner”,Proc. Intl. Soc. Mag. Reson. Med. 6, 1998, p. 1942, XP002414435.

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