PMC4900303_01
Left panel - short axis view showing unicuspid valve. Right panel - long axis view showing valve and flow direction in internal jugular vein
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PMC4900303_01_ACA-18-106-g001.jpg
F1
We then performed vascular ultrasound examination using Philips HD11 XE ultrasound system, and found to have a large venous valve in right IJV [Figures 1 and 2].
Color flow Doppler image of internal jugular vein (IJV: Internal jugular vein, ICA: Internal carotid artery)
ACA-18-106-g002.jpg
PMC4900303_01_ACA-18-106-g002.jpg
F2
We then performed vascular ultrasound examination using Philips HD11 XE ultrasound system, and found to have a large venous valve in right IJV [Figures 1 and 2].