Compressed sensing MRI
… A nonzero at (i, j) means that linear reconstruction of pixel i suffers interference by a unit
impulse in pixel j = i. In short, the PSF measures the tendency of zero-filled linear reconstruction …
impulse in pixel j = i. In short, the PSF measures the tendency of zero-filled linear reconstruction …
Metal-induced artifacts in MRI
OBJECTIVE. The purpose of this article is to review some of the basic principles of imaging
and how metal-induced susceptibility artifacts originate in MR images. We will describe …
and how metal-induced susceptibility artifacts originate in MR images. We will describe …
[HTML][HTML] Hyperpolarized 13C MRI: path to clinical translation in oncology
…, DA Mankoff, ME Merritt, SJ Nelson, JM Pauly… - Neoplasia, 2019 - Elsevier
This white paper discusses prospects for advancing hyperpolarization technology to better
understand cancer metabolism, identify current obstacles to HP (hyperpolarized) 13 C …
understand cancer metabolism, identify current obstacles to HP (hyperpolarized) 13 C …
Sparse MRI: The application of compressed sensing for rapid MR imaging
… Under Nyquist sampling there is no interference between pixels and PSF(i;j)| i≠j = 0. … (i;j)|
i≠j are used to measure the incoherence of a sampling trajectory. We would like TPSF(i;j)| i≠j …
i≠j are used to measure the incoherence of a sampling trajectory. We would like TPSF(i;j)| i≠j …
ESPIRiT—an eigenvalue approach to autocalibrating parallel MRI: where SENSE meets GRAPPA
Purpose Parallel imaging allows the reconstruction of images from undersampled multicoil
data. The two main approaches are: SENSE, which explicitly uses coil sensitivities, and …
data. The two main approaches are: SENSE, which explicitly uses coil sensitivities, and …
Control over brain activation and pain learned by using real-time functional MRI
If an individual can learn to directly control activation of localized regions within the brain,
this approach might provide control over the neurophysiological mechanisms that mediate …
this approach might provide control over the neurophysiological mechanisms that mediate …
SPIRiT: Iterative self‐consistent parallel imaging reconstruction from arbitrary k‐space
A new approach to autocalibrating, coil‐by‐coil parallel imaging reconstruction, is presented.
It is a generalized reconstruction framework based on self‐consistency. The reconstruction …
It is a generalized reconstruction framework based on self‐consistency. The reconstruction …
Parameter relations for the Shinnar-Le Roux selective excitation pulse design algorithm (NMR imaging)
An overview of the Shinnar-Le Roux (SLR) algorithm is presented. It is shown how the
performance of SLR pulses can be very accurately specified analytically. This reveals how to …
performance of SLR pulses can be very accurately specified analytically. This reveals how to …
A k-space analysis of small-tip-angle excitation
J Pauly, D Nishimura, A Macovski - Journal of Magnetic Resonance (1969), 1989 - Elsevier
We present here a method for analyzing selective excitation in terms of spatial frequency (k)
space. Using this analysis we show how to design inherently refocused selective excitation …
space. Using this analysis we show how to design inherently refocused selective excitation …
Projection reconstruction techniques for reduction of motion effects in MRI
… Inspection of [ 31 shows that the integrand is negligible if the radius p is small because the
Bessel function J,(x) - 0 unless the argument is comparable to the order. Thus, away from the …
Bessel function J,(x) - 0 unless the argument is comparable to the order. Thus, away from the …