Volume-selective determination of the spin-lattice relaxation time in the rotating frame T1 rho, and T1 rho imaging.
A method for the volume- and resonance line-selective determination of the longitudinal relaxation time in the rotating frame, T1 rho, is described. The spin-lock pulse intrinsic to the T1 rho sequence simultaneously replaces the first slice-selective pulse of the VOSY method for localized spectroscopy. This is a further parameter suitable for the local characterization of tissue. On the same basis, T1 rho can be used as a new contrast parameter for biomedical imaging purposes. An appropriate pulse sequence for T1 rho imaging is presented. Test experiments which promise some striking advantages compared with conventional magnetic resonance imaging are reported.
Rommel
E
E
Sektion Kernresonanzspektroskopie, Universität Ulm, Federal Republic of Germany.
Kimmich
R
R
D000818:Animals; D002417:Cattle; D002645:Chickens; D004531:Eggs; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008433:Mathematics; D008460:Meat