Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 1

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1
Publication available in full text mode
Content available

Magnetic Resonance Imaging at Low Magnetic Field Using Hyperpolarized ^3He Gas

100%
Suchanek M., Cieślar K., Pałasz T., Suchanek K., Dohnalik T., Olejniczak Z.
Acta Physica Polonica A
|
2005
|
vol. 107
|
issue 3
491-506
EN
A low magnetic field magnetic resonance imaging system for small animal lung imaging using hyperpolarized ^3He gas is presented. The hyperpolarized ^3He gas at 1 mbar pressure and 30% polarization is obtained by the metastability exchange optical pumping technique. The magnetic resonance imaging unit is based on a permanent magnet of open geometry, built from a new generation Nd-B-Fe magnetic material. It produces the magnetic field of 88 mT with homogeneity better than 50 ppm in the 10 cm diameter sphere, after application of passive shimming. The magnetic field gradients of 30 mT/m are generated by a set of biplanar, actively shielded gradient coils. The first ^1H images of various biological objects, as well as ^3He images of the rat lung in vivo obtained in the described system are shown. In terms of sensitivity and resolution, the technique is superior to conventional ^1H magnetic resonance imaging, and offers great possibilities in early diagnosis of lung diseases.
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.