منابع مشابه
Single-shot line scan imaging using stimulated echoes.
A new high-speed MRI method is described for single-shot line scan imaging (LSI) based on stimulated echoes (STE). To allow for multislice imaging, the technique comprises a series of slice-selective preparation pulses (each corresponding to the first RF pulse of a STE sequence), a slab-selective refocusing pulse (second RF pulse), and multiple line-selective read pulses (third RF pulses). An a...
متن کاملHigh angular resolution diffusion imaging with stimulated echoes: compensation and correction in experiment design and analysis
Stimulated echo acquisition mode (STEAM) diffusion MRI can be advantageous over pulsed-gradient spin-echo (PGSE) for diffusion times that are long compared with T2 . It therefore has potential for biomedical diffusion imaging applications at 7T and above where T2 is short. However, gradient pulses other than the diffusion gradients in the STEAM sequence contribute much greater diffusion weighti...
متن کاملNanosecond image processing using stimulated photon echoes.
Processing of two-dimensional images on a nanosecond time scale is demonstrated using the stimulated photon echoes in a rare-earth-doped crystal (0.1 at. % Pr(3+):LaF(3)). Two spatially encoded laser pulses (pictures) resonant with the (3)P(0)-(3)H(4) transition of Pr(3+) were stored by focusing the image pulses sequentially into the Pr(3+):LaF(3) crystal. The stored information is retrieved an...
متن کامل3D Metabolic Imaging with Stimulated Echoes for Flow Suppression
Introduction: The Dynamic Nuclear Polarization (DNP) method for dissolution of hyperpolarized compounds has allowed for in vivo metabolic imaging, primarily done with hyperpolarized [1-C]-pyruvate [1]. One shortcoming of current hyperpolarized MRSI methods is that they do not distinguish between in-flowing labeled-metabolites and those generated within the region of interest. By using a stimula...
متن کاملNutational stimulated photon echoes.
Stimulated photon echoes (SPEs) with time duration comparable to the coherent lifetime and Rabi period have been investigated theoretically and experimentally with an angled beam configuration. The Rabi oscillation effects on both the transmitted field (optical nutation) and the SPE fields are explained by analytic solutions of Maxwell-Bloch equations. The theory also predicts that an echo can ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 1991
ISSN: 0740-3194,1522-2594
DOI: 10.1002/mrm.1910190208