Detection of air microbubbles in the internal jugular vein after intravenous injection of contrast agent for the diagnosis of patent foramen ovale.
Ratanakorn D, Myers LG, Tegeler CH. Detection of air microbubbles in the internal jugular vein after intravenous injection of contrast agent for the diagnosis of patent foramen ovale. J Clin Ultrasound. 2002 Oct; 30(8):506-9.