Echo train preparation for fast spin-echo acquisition
First Claim
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1. 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.
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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.
17 Citations
42 Claims
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1. A method of inducing nuclear magnetic resonance (NMR) signals from a region of an object to be imaged, the method comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus adapted to deliver sequences configured to cause a region of an object to be imaged to emit NMR signals, the apparatus comprising:
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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. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification