Wireless measurement of intrabody dimensions for patient monitoring and diagnosis

Abstract

Disclosed is a method for continuous or intermittent wireless monitoring of the volume of cardiac chambers, with the ability to combine these with pressure measurements for optimal remote monitoring of cardiac patients. A set of wireless position sensors or reflectors is placed within a cardiac chamber (i.e., the left ventricle), means for sensing the pressure within one or more cardiac chamber, and an external device adapted to interrogate the wireless sensors, to determine their relative and / or absolute positions with respect to each other and / or the external device and calculating the resulting volume of the cardiac chamber and creating pressure-volume loops.

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