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Observing curved flow using RUFIS
Author(s) -
Gach H. Michael,
Lowe Irving J.
Publication year - 1999
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/(sici)1522-2594(199906)41:6<1258::aid-mrm24>3.0.co;2-c
Subject(s) - spins , curvature , physics , flow (mathematics) , tube (container) , measure (data warehouse) , nuclear magnetic resonance , flow velocity , sequence (biology) , mechanics , geometry , optics , materials science , chemistry , mathematics , condensed matter physics , biochemistry , database , computer science , composite material
The rotating ultra‐fast imaging sequence (RUFIS) is used to image spins flowing through the curved portion of a 180° U‐tube with a circular cross section and a ratio of inner diameter to curvature diameter of 0.41. A velocity‐encoding preparation sequence is used with RUFIS to measure quantitatively the axial velocity distribution for spins under steady‐flow conditions. The resulting velocity contours confirm that higher velocity spins migrate toward the outer wall of the curve as the Dean number is increased. Magn Reson Med 41:1258–1263, 1999. © 1999 Wiley‐Liss, Inc.