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Rapid mapping of flow velocity using a new PARSE method
Author(s) -
Zuo Jin,
Walsh Edward G.,
Deutsch Georg,
Twieg Donald B.
Publication year - 2006
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/mrm.20750
Subject(s) - parsing , computer science , flow (mathematics) , imaging phantom , range (aeronautics) , inverse , measure (data warehouse) , signal (programming language) , shot (pellet) , blood flow , flow velocity , algorithm , artificial intelligence , physics , mathematics , mechanics , optics , data mining , geometry , materials science , medicine , metallurgy , composite material , programming language
A new method for flow velocity mapping is presented here. Instead of the conventional approach of employing two images (velocity sensitive and control) to generate velocity information, in the new method one determines the velocity directly from a single‐shot acquisition by solving an inverse problem. This technique is a variant of single‐shot parameter assessment by retrieval from signal encoding (SS‐PARSE). The results of simulation and phantom studies show strong agreement with the actual velocities. The prototype method can measure velocities in the range of –50 to 50 cm/s, which is roughly appropriate for future applications in dynamic blood flow measurement in carotid arteries. Magn Reson Med, 2006. © 2005 Wiley‐Liss, Inc.