CONTINUOUS AND RAPID QUANTIFICATION OF STROKE VOLUME FROM MAGNETOHYDRODYNAMIC VOLTAGES IN MAGNETIC RESONANCE IMAGING

摘要

Described here are systems and methods for providing a non-invasive and continuous quantitative measurement of left ventricular stroke volume ("SV") and flow volume during a magnetic resonance imaging ("MRI") scan. In general, the method estimates quantitative measurements of SV from magnetohydrodynamic ("MHD") voltages generated by blood flowing through the subject's vasculature while the subject is positioned in the magnetic field of an MRI system. A rapid calibration technique is provided to convert MHD voltages to estimates of blood flow, from which quantitative measurements of SV can be computed.