ACCUvein Measure Before ULtrasound as A facilitataTION Tool for Venous Marking

"Intervention is marking of the saphenous veins with ACCUVEIN system. The AccuVein® AV400 vein illumination system is a laser imaging system that detects superficial veins up to 10 mm deep and digitally displays, through a projected red light, a map of the vascularization on the surface of the skin. in real time, allowing clinicians to check vein permeability and position.~This system is portable and lightweight. It can be easily cleaned, and requires no calibration or adjustment. It does not require any contact with the patient. Second time is completion of marking by ultrasound if necessary"

Intervention is marking with ultrasound imaging as in usual practice.