NDLI: Blood velocity estimation feasibility using high resolution time-resolved MR sequences

Content Provider	IEEE Xplore Digital Library
Author	Darwich, A. Langevin, F.
Copyright Year	2010
Description	Author affiliation: Advanced Medical Imaging Center, CIMA, University of technology of Compiègne, UMR 6600, France (Darwich, A.; Langevin, F.)
Abstract	Blood velocity quantification is a challenge for vascular flow observation and arterial pathogenesis comprehension. In this context, magnetic resonance dynamic sequences could be used for spatial velocity encoding. On one hand, phase contrast techniques use spins phase modification for velocity information extraction. On the other hand, time of flight (TOF) technique has a high temporal resolution, but it is still considered a vascular visualization technique. The aim of this study is to check feasibility to estimate blood velocity from gradient echo TOF-based images. This is advantageous as high temporal resolution (≪10 ms) has the potential to produce more precise exploration of vessel, and blood movements. This work represents an experimental analysis of MR signal behavior as a function of velocity, in fast gradient echo TOF-based sequence. The study of this relationship's shape is necessary for later velocity quantification methods design. MR signal behavior is studied for a full scale of velocity, and reproducibility is checked. Imaging parameters influence is also reported. High temporal resolution, blood velocity estimation feasibility are finally discussed.
Starting Page	124
Ending Page	128
File Size	465419
Page Count	5
File Format	PDF
ISBN	9781424467754
e-ISBN	9781424467754
DOI	10.1109/ICBBT.2010.5478997
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-04-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pathogens Visualization Magnetic resonance Blood velocity estimation Image sequence analysis Encoding Data mining Blood Signal resolution Magnetic resonance imaging Time of flight technique Spatial resolution Signal analysis
Content Type	Text
Resource Type	Article

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