Magnetic resonance methods and apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 23, 1991
Grant Date -
N/A
app pub date -
Jan 29, 1990
filing date -
Feb 1, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A magnetic resonance method comprising the steps of exciting magnetic resonance in nuclei in a planar region of a body, applying a first gradient magnetic field having a periodically reversing gradient in a first direction across the region in conjunction with a series of pulses of a second gradient magnetic field in a second direction across the region orthogonal to the first direction, progressively decreasing the time between successive pulses of the second gradient, sensing resonance signals from the nuclei, and subjecting the resonance signals to a two-dimensional Fourier Transform process to acquire data relating to the region of the body. In the method the time between successive pulses of the second gradient is decreased in such a manner as to avoid acquisition of data in respect of areas in the corners of a rectangular matrix defined by the first and second gradient fields. Also, in the method the time between successive reversals of the gradient of the first gradient field is caused to vary in corresponding manner to the time between successive pulses of the second gradient field.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully