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Real‐time interactive magnetic resonance imaging with multiple coils for the assessment of left ventricular function
Author(s) -
Weber Oliver M.,
Eggers Holger,
Spiegel Marcus A.,
Scheidegger Markus B.,
Proksa Roland,
Boesiger Peter
Publication year - 1999
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/(sici)1522-2586(199911)10:5<826::aid-jmri30>3.0.co;2-i
Subject(s) - magnetic resonance imaging , frame rate , real time mri , computer science , closing (real estate) , ventricular function , computer vision , artificial intelligence , medicine , radiology , political science , law
Interactive real‐time examination of left ventricular function in healthy volunteers both under rest and stress conditions has been performed. For this purpose, a system combining an interactive user interface, an ultrafast segmented echo‐planar imaging sequence, and real‐time reconstruction and display of the acquired images was designed. Magnetic resonance images were acquired at rates of up to 20 images per second with multiple receiver coils. By using a sliding window reconstruction technique, reconstruction rates of up to 60 images per second were achieved with a latency of < 100 msec. The quality of the real‐time images was evaluated both qualitatively and quantitatively and was found to be appropriate for the determination of left ventricular function. It is concluded that the combination of dedicated components provides a convenient modality for the high‐quality visualization of left ventricular function under rest and stress conditions at video frame rates with magnetic resonance imaging. J. Magn. Reson. Imaging 1999;10:826–832. © 1999 Wiley‐Liss, Inc.