RESUMEN
This research was designed to study the values of ultrasound guidance in radial artery cannulation in comparison to conventional technique. Two groups of patients each is twenty cases for whom radial artery cannulation was indicated, first group [A] the artery were cannulated using the ultrasound guidance, and the second group [B] the radial artery.was cannulated by the conventional technique.B.oth groups were studied regarding duration of cannulation success rate, incidence of complications. The ultrasound guided radial artery cannulation technique showed more short duration, high success rate lower incidence of complications in comparison to the conventional technique of cannulation. It was concluded that the ultrasound guided technique is highly valuable in cannulation of radial artery