Radiology Terminology

Deciphering Radiology One Term at a Time

# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
There are 18 names in this directory beginning with the letter V.
vacuum-assisted biopsy
A type of biopsy in which a vacuum-powered instrument is inserted through the skin to the site of an abnormal growth to collect and remove a sample of cells for analysis. Using vacuum pressure, the abnormal cells and tissue are removed without having to withdraw the probe after each sampling as in core needle biopsy.
vagina
The genital canal in the female, extending from the uterus to the vulva.
vagus nerve
One of two nerves that run on opposite sides of the body from the brainstem through the neck and chest to the abdomen. The vagus nerves are involved in bodily functions that are not under voluntary control, such as breathing and digestion, as well as regulation of the heart rate.
varicocele
An abnormal enlargement of a vein in the scrotum draining the testicles.
varicose
Abnormally swollen and enlarged.
vascular
Relating to or containing blood vessels.
vascular disease
Any condition that affects the (circulatory) system of blood vessels that carries blood from the heart throughout the rest of the body. This includes diseases of the arteries, veins, and lymph vessels and blood disorders that affect circulation.
vasospasm
The narrowing of a blood vessel due to excessive contraction of the vessel wall.
vein
One of a large system of branching vessels that collect blood which the arteries have distributed to body tissues and returns it to the heart and then the lungs.
vein stripping
A procedure in which varicose veins, abnormally swollen and enlarged blood vessels, are removed surgically, usually from the leg.
venogram
X-ray imaging of the veins following contrast material injection into the veins.
venous insufficiency
Enlarged veins with faulty valves that permit blood to pool by gravity instead of returning to the heart for re-circulation.
ventilation
1. Replacement of air or other gas in a space by fresh air or gas. 2. Movement of gas(es) into and out of the lungs.
ventricles
1. In the brain, the hollow cavities containing cerebrospinal fluid (CSF). 2. The main pumping chambers in the heart.
vertebra
An individual bone in the column of bones that extends from the base of the skull to the pelvis which permits us to stand upright and serves to enclose and protect the spinal cord.
vertebral compression fractures
Fractures of the vertebrae caused by the compression, or excessive pushing, of one bone against another.
virtual private network (VPN)
A computer network in which links between computers or other hardware devices are carried on an open connection or over the Internet instead of being directly connected by physical wires; software encryption ensures that only authorized users can access the network.
volumetric modulated arc therapy (VMAT)
Volumetric Arc Therapy (VMAT) is an advanced form of intensity-modulated radiotherapy (IMRT) that delivers a targeted three-dimensional dose of radiation to a tumor in one or more treatments.