Get started
Work

A system for open‐access 3He human lung imaging at very low field

Year: 2006
Type: article
Abstract: We describe a prototype system built to allow open-access very-low-field MRI of human lungs using laser-polarized (3)He gas. The system employs an open four-coil electromagnet with an operational B(0) field of 4 mT, and planar gradient coils that generate gradient fields up to 0.18 G/cm in the x and y direction and 0.41 G/cm in the z direction. This system was used to obtain (1)H and (3)He phantom images and supine and upright (3)He images of human lungs. We include discussion on challenges unique to imaging at 50 -200 kHz, including noise filtering and compensation for narrow-bandwidth coils.
DOI: 10.1002/cmr.b.20075
Authors: I.C. Ruset, L.L. Tsai, R.W. Mair, S. Patz, M.I. Hrovat, M.S. Rosen, I. Muradian, J. Ng, G.P. Topulos, J.P. Butler, R.L. Walsworth, F.W. Hersman
Institutions: University of New Hampshire, Harvard University, Harvard–MIT Division of Health Sciences and Technology, Center for Astrophysics Harvard & Smithsonian, Massachusetts Institute of Technology, Brigham and Women's Hospital, Mirtech (United States)
Language: English
Open Access status: green
OpenAlex ID: W1992398319
FWCI: 1.287
Cites: 29
Cited by: 24
Related to: 10