I THINK THE DOPPLER VELOCITY RELATED TO ANGLE OF INSONATION DECREASES FROM 0 DEGRE TO - 180 DEGRE AND BECOMES EQUAL TO ZERO AT 90 DEGRE .. .SO IN THIS TOPIC THE VELOCITY AT 60 DEGRE SHOULD BE MORE HIGHER THAN AT 70 DEGRE .. IN SUMMARY WE SHOULD HAVE THE OPPOSITE TO WHAT IT IS SHOWN IN THIS INTERESTING VIDEO IN THE OTHER HAND THE RESPIRATORY PHASICITY COULD BE SEEN IN ALMOST ALL VENOUS SYSTEM AT DIFFENTS DEGREES ,BUT THE CARDIAC PULSATILIY COULD BE SEEN IN BOTH VENOUS AND ARTERIEL SYSTEMS WHICH ARE NEAR THE HEART LIKE CHEST .UPPER ABDOMEN ,THE PROXIMAL UPPER LIMBS ... THE CARDIAC PULSATILITY IN THE LOWER LIMBS OR IN THE PORTAL VEIN IS INTERPRETED AS A HEART FAILURE ,TRISCUPID REGURGITATION .PULMMONARY EMBOLISM ..PHTA .etc . IN THIS VIDEO I THINK IT IS THE OVER CROSSING OF THE LEFT COMMON VEÎN BY THE RIGHT COMMON ILIAC ARTERY THAT TRANSMIT THE CARDIAC PULSATILITY TO THE RIGHT CFV
