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 20 names in this directory beginning with the letter T.
technetium-99m
A radiotracer commonly used in nuclear medicine for many different types of examination. It decays within 24 hours, leaving no residual radiation.
technologist
One trained in and using the techniques of a profession, art, or science.
temporomandibular joint disorder
Also known as TMJ. A group of disorders associated with pain in the face affecting the jaw muscles, temporomandibular joints (upper temporal bone and lower mandible jaw bone that form the joint) and nerves.
tension headache
A headache in which pressure and a band-like tightness begins in the back of the head and upper neck and gradually encircles the head.
testicular torsion
The twisting of the spermatic cord that contains the vessels that supply blood to the testicles.
therapeutic radiology
A medical specialty and the study of radiation treatment of abnormal tissue (nonmalignant or cancerous) through the use of x-rays or radionuclides.
therapist
One professionally trained and/or skilled in the practice of a particular type of therapy.
thrombolytic agent
One of a group of medications used to dissolve clots within the blood vessels of the body.
thrombolytic therapy
The use of medication used to break up or dissolve clots within blood vessels.
thrombophlebitis
Inflamation of a vein that results when a blood clot, a thickened mass of blood, forms along the wall of a blood vessel.
thyroid gland
One of nine endocrine glands in the body, located in front of the neck just below the Adam's apple. It is shaped like a butterfly, with two lobes on either side of the neck connected by a narrow band of tissue. The thyroid gland produces thyroid hormones that set the rate the body carries on its necessary functions (metabolic rate). Some of the functions controlled by thyroid hormones include heart rate, cholesterol level, body weight, energy level, muscle strength, skin condition and vision.
tomography
Making a radiographic image of a selected plane by means of reciprocal linear or curved motion of the x-ray tube and film cassette; images of all other planes are blurred ("out of focus") by being relatively displaced on the film.
trachea
Also known as the windpipe, the tube that connects the lungs and mouth.
transabdominal
Through or across the abdomen.
transducer
A hand-held device that sends and receives ultrasound signals.
transrectal
Passing through or performed by way of the rectum.
transvaginal
Across or through the vagina (the genital canal in the female, extending from the uterus to the vulva).
trocar
A hollow needle with a sharply pointed end that is inserted into a blood vessel, body cavity or bone. Needles, tubes or other instruments are then inserted through the trocar be inserted to reach the treatment area.
tuberculosis
A highly contagious infection transmitted through the air that attacks the lungs and other parts of the body.
tumor ablation
The removal of a tumor.