Cardiovascular monitoring using combined measurements

A system for collecting data for assessment of cardiovascular function, comprising:

• a first monitoring device comprising a first sensor configured to measure a first signal in response to cardiovascular activity during a time period, the first signal including data relating to a plurality of cardiac cycles during the time period, the first monitoring device including a first communication interface;
• a second monitoring device comprising an optical sensor configured to measure a second signal in response to the cardiovascular activity during the time period, wherein the second signal includes a cardiovascular component attributable to the cardiovascular activity and an artifact component not attributable to the cardiovascular activity, the second monitoring device including a second communication interface;
• and
• a controller including:
• a third communication interface configured to be communicatively coupled to the first communication and second communication interfaces;
• at least one data storage device;
• and
• at least one processor configured to:
• (i) receive, via the third communication interface, the measurement of the first signal from the first monitoring device and the measurement of the second signal from the second monitoring device;
• (ii) determine cardiac cycle information from the data in the first signal, wherein the cardiac cycle information provides a reference signal;
• and (iii) identify the cardiovascular component by comparing the measurement of the second signal to the reference signal.