✦ LIBER ✦

Spin locking for magnetic resonance imaging with application to human breast

✍ Scribed by Giles E. Santyr; R. Mark Henkelman; Michael J. Bronskill

Publisher: John Wiley and Sons
Year: 1989
Tongue: English
Weight: 682 KB
Volume: 12
Category: Article
ISSN: 0740-3194
DOI: 10.1002/mrm.1910120104

No coin nor oath required. For personal study only.

✦ Synopsis

The dependence of rotating frame spin-lattice relaxation, T1 rho on locking field frequency, f1, was measured for phantom materials and human breast tissues. These data were used to predict the relative signal strengths obtainable in a spin-locking imaging sequence. This imaging sequence was implemented on a 0.15-T imaging system and measurements of phantom and tissue signal strength for various imaging parameters agreed with predicted signal strengths. Compared to T1 and T2, T1 rho appears to have unique capability to distinguish tumor from normal fat and fibrous breast tissues. The applications of T1 rho to tissue characterization and imaging at high static field strengths are discussed.

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