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A dilated vein. The dilation may occur in almost any part of the body but is most common in the lower extremities and in the esophagus.   

Removal of an embolus from a vessel. It may be done surgically or by the use of enzymes that dissolve the clot.

Restoration of blood flow to a blocked artery using endovascular techniques- typically a balloon. 

A soft, flexible catheter that is inserted into the pulmonary artery of patients in shock or acute pulmonary edema to determine intracardiac pressures, oxygen saturation, and other hemodynamic parameters. (capitalize the first words- they are Drs. last names)

A specially equipped operating room designed to perform endovascular and open surgical procedures.

An abnormal sound made when blood rushes through a partly blocked blood vessel. It is a periodic hissing, whooshing, or sibilant sound.

Radiographic imaging of the size, shape, and luminal structure of blood vessels after the introduction of a radiopaque contrast medium.  (done in either a vein or artery)

Division into two branches; “Y” shaped of an artery or a graft after separation into two smaller vessels. 

A moving substance in the vascular system.  This may may consist of air, a blood clot, atherosclerotic plaque, or fat.

A spasm of a blood vessel usually resulting in constriction.