✦ LIBER ✦

Effect of the sampling rate on magnetic resonance imaging

✍ Scribed by S. Vinitski; R. Griffey; M. Fuka; N. Matwiyoff; R. Prost

Publisher: John Wiley and Sons
Year: 1987
Tongue: English
Weight: 411 KB
Volume: 5
Category: Article
ISSN: 0740-3194
DOI: 10.1002/mrm.1910050309

No coin nor oath required. For personal study only.

✦ Synopsis

Effects of the sampling rate on spatial resolution and the signal-to-noise ratio in spin-echo MR imaging were calculated. The theoretical results suggest that as T2* decreases, due to either static magnetic field inhomogeneities or shortened T2 relaxation times, the calculated optimum sampling rate increases accordingly. Since biological tissues exhibit wide variations in their magnetic susceptibilities and T2 relaxation times for various isotopes but modern magnets are characterized by good magnetic field homogeneity, the optimum sampling rate should exhibit an observable dependence on the tissue type. Proton and sodium imaging experiments confirm this conclusion.

📜 SIMILAR VOLUMES

Effect of the rate of gadolinium injecti

Effect of the rate of gadolinium injection on magnetic resonance pulmonary perfusion imaging

✍ Shin Matsuoka; Katsuhiro Uchiyama; Hideki Shima; Hiroaki Terakoshi; Sonomi Oishi 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 437 KB 👁 1 views

## Abstract ## Purpose To determine whether the injection rate of contrast agent affects the dynamics of enhancement of the pulmonary parenchyma on magnetic resonance (MR) pulmonary perfusion imaging. ## Materials and Methods Fifteen healthy volunteers underwent enhanced MR pulmonary perfusion i

Effects of periodic flow fluctuations on

Effects of periodic flow fluctuations on magnetic resonance flow images

✍ Yusuf Uludag; Robert L. Powell; Michael J. McCarthy 📂 Article 📅 2004 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 285 KB 👁 2 views

Efficient magnetic resonance imaging met

Efficient magnetic resonance imaging methods for automated quantitation of magnetic resonance parameters from multiple samples

✍ Stephen D. Evans; Kevin P. Nott; Ashwini Kshirsagar; Laurance D. Hall 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 387 KB 👁 2 views

Magnetic resonance imaging methods have been developed which simultaneously measure the bulk magnetic resonance parameters of many samples contained in stacks of multi-well sample plates using either a 2.35 T, 31 cm or a 2 T, 100 cm horizontal bore magnet each with a quadrature "birdcageÏ resonator.

Magnetic resonance imaging of the elbow

📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 34 KB

Cell internalization of anionic maghemit

Cell internalization of anionic maghemite nanoparticles: Quantitative effect on magnetic resonance imaging

✍ C. Billotey; C. Wilhelm; M. Devaud; J.C. Bacri; J. Bittoun; F. Gazeau 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 378 KB 👁 1 views

## Abstract Anionic iron oxide nanoparticles are efficiently internalized into macrophages where they concentrate within micrometric endosomes, conferring on them a high magnetic susceptibility. The uptake of anionic maghemite nanoparticles by macrophages was quantified by an electron spin resonanc

The effects of microscopic tissue parame

The effects of microscopic tissue parameters on the diffusion weighted magnetic resonance imaging experiment

✍ David G. Norris 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 190 KB 👁 1 views

## Abstract This review examines the way in which microscopic tissue parameters can affect MR experiments which are sensitive to diffusion. The interaction between the intra‐ and extravascular as well as that between the intra‐ and extracellular spaces is examined. Susceptibility gradients due to t