“…1,2 Therefore, the radiological anatomy of the IJV has been studied using ultrasonography, accounting for position, size, depth from the skin and variations of IJV in relation to their carotids with neck rotation. [3][4][5][6] Ultrasonography, however, has its limitations with respect to delineating the anatomy of the jugular veins, in being operator dependent with technique variability. 3,[7][8][9] During the procedure, there is an external compression of the veins, which may result in an inaccurate view of the vein.…”