Echo train preparation for fast spin-echo acquisition
AssigneeBeth Israel Deaconess Medical Center, Inc.
InventorDavid Alsop
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Abstract
In one aspect, a method of inducing nuclear magnetic resonance (NMR) signals from a region of an object to be imaged is provided. The method comprises applying to the region a preparation sequence configured to substantially establish a zero flip-angle pseudo steady state (PSS) for the region, applying to the region a transitioning sequence configured to transition the zero flip-angle PSS to a higher target flip-angle PSS, and applying a radio frequency (RF) pulse sequence configured to cause the region to emit detectable NMR signals.
Claims42
A method of inducing nuclear magnetic resonance (NMR) signals from a region of an object to be imaged, the method comprising:
- applying to the region a preparation sequence configured to substantially establish a zero flip-angle pseudo steady state (PSS) for the region;
- applying to the region a transitioning sequence configured to transition the zero flip-angle PSS to a higher target flip-angle PSS;
- and
- applying a radio frequency (RF) pulse sequence configured to cause the region to emit detectable NMR signals.
An apparatus adapted to deliver sequences configured to cause a region of an object to be imaged to emit NMR signals, the apparatus comprising:
- a transmit component adapted to provide radio frequency (RF) electromagnetic radiation to a region;
- a reception component adapted to detect NMR signals emitted from the region;
- and
- a controller adapted to operate the transmit component to provide a preparation sequence configured to substantially establish a zero flip-angle pseudo steady state (PSS) for the region, a transitioning sequence configured to transition an established zero flip-angle PSS to a higher target flip-angle PSS, and a radio frequency (RF) pulse sequence configured to cause the region to emit detectable NMR signals.
Dependencies are inferred from the claim text.