System and method for generating gating signals for a...

Details System and method for generating gating signals for a... System and method for generating gating signals for a...

2005-08-30

2005-08-30

Smith, Ruth S. (Department: 3737)

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

C600S413000, C600S437000, C600S443000, C600S453000, C600S534000

Reexamination Certificate

active

06937883

ABSTRACT:
A magnetic resonance imaging system is disclosed to perform an imaging pulse sequence that acquires data to generate an image of at least a portion of the patient. The magnetic resonance imaging system comprises an acoustic transducer to irradiate an anatomic structure in the patient using ultrasonic energy. A receiver, in response to ultrasonic energy, generates echo signals. Using the echo signals, a signal analyzer generates a plurality of gating signals, including a first gating signal in response to a first period of motion of the anatomic structure and the second gating signal in response to a second period of motion of the structure. The magnetic resonance imaging system, in response to the first gating signal, acquires data from the center of k-space, and, in response to the second gating signal, acquires the periphery of k-space.

REFERENCES:
patent: 5032793 (1991-07-01), Yamamoto et al.
patent: 6198959 (2001-03-01), Wang

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