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

Ruset I.C. | Zendy; Tsai L.L. | Zendy; Mair R.W. | Zendy; Patz S. | Zendy; Hrovat M.I. | Zendy; Rosen M.S. | Zendy; Muradian I. | Zendy; Ng J. | Zendy; Topulos G.P. | Zendy; Butler J.P. | Zendy; Walsworth R.L. | Zendy; Hersman F.W. | Zendy

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

Author(s) -

Ruset I.C.,

Tsai L.L.,

Mair R.W.,

Patz S.,

Hrovat M.I.,

Rosen M.S.,

Muradian I.,

Ng J.,

Topulos G.P.,

Butler J.P.,

Walsworth R.L.,

Hersman F.W.

Publication year - 2006

Publication title -

concepts in magnetic resonance part b: magnetic resonance engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.286

H-Index - 32

eISSN - 1552-504X

pISSN - 1552-5031

DOI - 10.1002/cmr.b.20075

Subject(s) - imaging phantom , physics , optics , planar , supine position , human lung , laser , nuclear magnetic resonance , computer science , lung , medicine , computer graphics (images)

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. © 2006 Wiley Periodicals, Inc. Concepts Magn Reson 29B: 210–221, 2006.

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