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Continuous Rapid Quantification of Stroke Volume Using Magnetohydrodynamic Voltages in 3T Magnetic Resonance Imaging
Author(s) -
T. S. Gregory,
John N. Oshinski,
Ehud J. Schmidt,
Raymond Y. Kwong,
William G. Stevenson,
Zion Tsz Ho Tse
Publication year - 2015
Publication title -
circulation cardiovascular imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.584
H-Index - 99
eISSN - 1942-0080
pISSN - 1941-9651
DOI - 10.1161/circimaging.115.003282
Subject(s) - magnetic resonance imaging , stroke volume , beat (acoustics) , nuclear magnetic resonance , stroke (engine) , medicine , nuclear medicine , biomedical engineering , cardiology , heart rate , physics , blood pressure , radiology , acoustics , thermodynamics
To develop a technique to noninvasively estimate stroke volume in real time during magnetic resonance imaging (MRI)-guided procedures, based on induced magnetohydrodynamic voltages (VMHD) that occur in ECG recordings during MRI exams, leaving the MRI scanner free to perform other imaging tasks. Because of the relationship between blood flow (BF) and VMHD, we hypothesized that a method to obtain stroke volume could be derived from extracted VMHD vectors in the vectorcardiogram (VCG) frame of reference (VMHDVCG).

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