Direct temporal encoding of spatial information

Details Direct temporal encoding of spatial information Direct temporal encoding of spatial information

2003-05-16

2009-11-17

Le, Long V (Department: 3768)

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

C600S407000, C324S307000, C324S308000, C324S309000, C324S310000

Reexamination Certificate

active

07620440

ABSTRACT:
An improved imaging technique and apparatus for direct temporal encoding of spatial information of an object is presented. The signal collected from the object after application of excitation energy in a magnetic field is directly representative of the spatial position of the object without the need for the signal to undergo mathematical transformation. This is a result of the excitation scheme that generates transverse magnetization across the field of view that is a function of X (read-out) and Z (slice select) positions, resulting in a two-dimensional phase profile that, upon application of a constant gradient along the Z axis, elicits a signal that is directly attributable to the spatial position along the read-out dimension without application of mathematical transformation.

REFERENCES:
patent: 4354499 (1982-10-01), Damadian
patent: 4411270 (1983-10-01), Damadian
patent: RE32619 (1988-03-01), Damadian
patent: RE32689 (1988-06-01), Damadian
patent: 5051698 (1991-09-01), Ordidge
patent: 5122748 (1992-06-01), Oh et al.
patent: 5153515 (1992-10-01), Leigh et al.
patent: 5347217 (1994-09-01), Leach et al.
patent: 5928146 (1999-07-01), Itagaki et al.
patent: 6087831 (2000-07-01), Bornert et al.
patent: 6445183 (2002-09-01), Shimizu et al.
patent: 6794865 (2004-09-01), Astley et al.
patent: 6995560 (2006-02-01), Duerk et al.
patent: 7511490 (2009-03-01), Abe
patent: 2002/0036501 (2002-03-01), Astley et al.
patent: 2004/0155652 (2004-08-01), Sodickson
patent: 2007/0219442 (2007-09-01), Aletras et al.
Elgort, et al., Direct Temporal Encoding of Spatial Information: A Novel Non-fourier Imaging Technique, 1 pg.
Schricker, et al., Dualband Spectral-Spatial RF Pulses for Prostate MR Spectroscopic Imaging, Magnetic Resonance in Medicine 46:1079-1087 (2001).
MR Image Encoding, 10 pgs.
Noll, A Primer on MRI and Functional MRI, Version 2.1, Jun. 21, 2001, 14 pgs.
Grabert, Lisa, Fourier Transform in Medical Imaging II, Jul. 1999, 10 pgs.
Rzepa, H. S., Processing the Free Induction Decay, 1 pg.
Pipe, James G., “Spatial Encoding and Reconstruction in MRI with Quadratic Phase Profiles” MRM (1995) 33:24-33.

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