Abstract: Systems and methods for processing magnetic resonance imaging (MRI) data are provided. A method includes receiving MRI data comprising a plurality of k-space points and deriving a plurality of image data sets based on the MRI data, each of the plurality of MRI image sets obtained by zeroing a different one of the plurality of k-space points. The method further includes computing image space metric values for each of the plurality of image data sets and adjusting a portion of the MRI data associated with ones of the image space metric values that fail to meet a threshold value to yield adjusted MRI data.

Abstract: Systems and methods for processing magnetic resonance imaging (MRI) data are provided. A method includes receiving MRI data comprising a plurality of k-space points and deriving a plurality of image data sets based on the MRI data, each of the plurality of MRI image sets obtained by zeroing a different one of the plurality of k-space points. The method further includes computing image space metric values for each of the plurality of image data sets and adjusting a portion of the MRI data associated with ones of the image space metric values that fail to meet a threshold value to yield adjusted MRI data.

Abstract: A system for monitoring a physical parameter of a subject includes a sensor, a transmitter, a repeater, and a base station. The sensor is located within the body of the subject and is operable to sense a physical parameter of the subject. The transmitter is electrically connected to the sensor, and is operable to transmit a spread spectrum encoded signal using a digital spreading code, the encoded signal carrying information indicative of the sensed physical parameter and being transmitted to a local region outside the body. The repeater is located in the local region, is movable with the subject, and is operable to receive the transmitted encoded signal and retransmit it to a remote region outside the body. The base station is located in the remote region and is operable to receive and decode the retransmitted encoded signal.

Abstract: A series of fMRI image frames are acquired along with interleaved navigator signals. The navigator signals are acquired while three orthogonal readout gradients are applied such that a spherical surface is sampled in k-space. The navigator signals are analyzed to measure subject rotational and translational motion during the scan.

Abstract: A series of fMRI image frames are acquired along with interleaved navigator signals. The navigator signals are acquired while three orthogonal readout gradients are applied such that a spherical surface is sampled in k-space. The navigator signals are analyzed to measure subject rotational and translational motion during the scan.