Quantitative analysis of jugular venous pulse obtained by using a   general-purpose ultrasound scanner
  This is a self-published methodological note distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The note contains an original reasoning of mine and the goal to share thoughts and methodologies, not results. Therefore before using the contents of these notes, everyone is invited to verify the accuracy of the assumptions and conclusions. 
Francesco Sisini
physics.med-ph