K-space


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K-space

In magnetic resonance imaging, the computer memory where frequency multiecho data can be stored prior to full reconstruction of the image.
References in periodicals archive ?
Eibert, "A diagonalized multilevel fast multipole method with spherical harmonics expansion of the k-space integrals," IEEE Transactions on Antennas and Propagation, vol.
The term [[gamma].sup.[mu]][[phi].sub.(n,k,x)][[gamma].sup.v][[phi].sub.(n,k,x)] refers to the normalized information flux density passing through an elementary surface d[k.sup.[mu]]d[k.sup.v] in K-space. The gradient of the flux density yields the baseband bandwidth [k.sub.(n)[mu]].
In the first step, free breathing cardiac phases without motion estimation are recovered from undersampled k-space data.
This condition not only enforces restrictions on the choice of k-space trajectories sampling the entire IR but also renders imagespace methods unlikely to fully exploit the inherent redundancy in the data (i.e., about 1000 radial spokes for a 4s acquisition).
The effects of time varying intravascular signal intensity and k-space acquisition order on three-dimensional MR angiography image quality.
As this work is supposed to be a proof of concept, we favored simulating motion artefacts in k-space rather than simulating a motion-corrupted raw MRI signal using tools such as the Physics-Oriented Simulated Scanner for Understanding MRI (POSSUM) [8].
However, the MRI data sampled in the spatial Fourier transform or K-space of an object are acquired sequentially in time.
A sequence space X with a linear topology is called a K-space if each of the projection maps [P.sub.i]: X [right arrow] C defined by [P.sub.i](x) = x(i) for x = [(x(i)).sup.[infinity].sub.i=1] [member of] X is continuous for each natural i.
Ann Arbor, MI, December 29, 2012 --(PR.com)-- Specialists in real-time, in-situ, thin-film process monitoring tools, k-Space Associates has hired Michigan social media agency Ingenex Digital Marketing to plan and implement a social media marketing and search engine optimization campaign for their brand.
The acquired data corresponds to the Fourier transform of the image, A([k.sub.x], [k.sub.y]), also called the k-space data.