𝔖 Bobbio Scriptorium
✦   LIBER   ✦

NMR imaging in the earth's magnetic field

✍ Scribed by J. Stepišnik; V. Eržen; M. Kos

Publisher
John Wiley and Sons
Year
1990
Tongue
English
Weight
344 KB
Volume
15
Category
Article
ISSN
0740-3194

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The most important and very expensive part of a magnetic resonance imaging set‐up is the magnet, which is capable of generating a constant and highly homogeneous magnetic field. Here a new MR imaging technique without the magnet is introduced. This technique uses the earth's magnetic field instead of a magnetic field created by a magnet. This new method has not yet reached the stage of medical application, but the first images obtained by MRIE (magnetic resonance imaging in the earth's field) show that the resolution is close to that expected based on sensitivity estimations. © 1990 Academic Press, Inc.

📜 SIMILAR VOLUMES

Environmental optimization and shielding
Environmental optimization and shielding for nmr experiments and imaging in the earth's magnetic field
✍ B. Favre; J. P. Bonhe; H. Mehier; J. O. Peyrin 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 335 KB

For many years, a number of laboratories have been working on the applications of very low field NMR. In 1985, our laboratory presented the first NMR images using the earth's magnetic field. However, the use of this technique was limited by the weakness of the signal and the disturbing effects of th

Self-Diffusion Imaging by Spin Echo in E
Self-Diffusion Imaging by Spin Echo in Earth's Magnetic Field
✍ Aleš Mohorič; Janez Stepišnik; Miha Kos; Gorazd Planinšič 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 116 KB

The NMR of the Earth's magnetic field is used for diffusionweighted imaging of phantoms. Due to a weak Larmor field, care needs to be taken regarding the use of the usual high field assumption in calculating the effect of the applied inhomogeneous magnetic field. The usual definition of the magnetic

Optimizing Sudden Passage in the Earth's
Optimizing Sudden Passage in the Earth's-Field NMR Technique
✍ B.F. Melton; V.L. Pollak 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 209 KB

The equation of motion dM/dt Å gM 1 B(t) is solved numeriing which limiting case applies, and we analyze the motion cally for the case B(t) Å jB p (t) / kB e . The field B e is a small of M under the second assumption. We show that by introstatic field, typically the earth's field. The field B p (t)