An apparatus for validating a non-invasively obtained estimate of LVEDP includes a non-invasive system for non-invasively obtaining a first estimate of the LVEDP; an invasive system for invasively obtaining a second estimate of the LVEDP concurrent with the first estimate; and a processor for comparing the first and second estimates of the LVEDP.

 
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< Electrode structure for measuring electrical responses from the human body

> Double echo magnetic resonance imaging sequence and apparatus for the implementation thereof
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