Word: mri
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...course of his research at CfA, Ronald L. Walsworth and his team have developed a xenon gas laser polarization technique that may enhance the capabilities of MRI...
...further their research into the origin ofmatter, Walsworth, Oteiza and Timothy E. Chupp ofthe University of Michigan developed aninexpensive technique for producing the magnetizedxenon gas needed to measure the dipole. Only aftertalking to scientists doing similar research atPrinceton and SUNY Stonybrook did Walsworthrealize the advantages his magnetizer couldprovide for MRI...
...MRI relies on magnetizing the hydrogen atoms inwater molecules in the patient's body, settingthem spinning in one direction so that they createa weak electrical signal which is then convertedto a computer image...
Because the gas is premagnetized, MRI machinesdetecting xenon only require a weak magnetic fieldand can probably be made much smaller thanconventional imagers. Walsworth says he hopes thenew MRI's compact size will allow it to be broughtaboard the space shuttle to provide data on howzero gravity affects the body...
Although Walsworth is busy applying xenonmagnetization to MRI, he says he is not postponingany of his astrophysical research. "We're notgoing to slow down at all," he says. "We'reexpanding and not switching gears...