Incredible Ultrasound Guided Sclerotherapy References. Web sclerotherapy is the targeted chemical ablation of a varicose vein by intravenous injection of a liquid or foam sclerosant [ 1, 2 ]. Sclerosant, in the form of a foam, is intended to have good surface area contact with the vein walls the procedure may be carried out with local anaesthesia.

Sclerosant, in the form of a foam, is intended to have good surface area contact with the vein walls the procedure may be carried out with local anaesthesia. In foam sclerotherapy for varicose veins, ultrasound can track the spread of foam in only one direction. Sclerotherapy is typically done in a health care provider's office.