Radiology

Question 1

Medical specialty concerned with the study and application of x-rays and other technologies (such as ultrasound and magnetic resonance) to produce and interpret images of the human body for the diagnosis of disease.

Answer 1

radiology

Question 2

Invisible waves of energy that are produced by an energy source and are useful in the diagnosis and treatment of disease.

Answer 2

x-rays

Question 3

Medical specialty that uses radioactive substances in the diagnosis and treatment of disease.

Answer 3

nuclear medicine

Question 4

Materials that emit high-speed particles and energy-containing rays from the interior of their matter.

Answer 4

radioactive substances (radionuclides)

Question 5

A physician who specializes in the practice of diagnostic radiology.

Answer 5

radiologist

Question 6

Specializes in diagnostic radionuclide scanning procedures.

Answer 6

nuclear medicine physician

Question 7

Allowed health care professionals who work with physicians in the fields of radiology and nuclear medicine.

Answer 7

radiologic technologists

Question 8

Radiologic technologists who aid physicians in administering diagnostic x-ray procedures.

Answer 8

radiographer

Question 9

Radiologic technologists who attend to patients undergoing nuclear medicine procedures and operate devices under the direction of a nuclear physician.

Answer 9

nuclear medicine technologists

Question 10

Radiologic technologists who aid physicians in performing ultrasound procedures.

Answer 10

sonographers

Question 11

A substance is _____ if it permits passage of most of the x-rays.

Answer 11

radiolucent

Question 12

A substance is _____ if it absorbs most of the x-rays it is exposed to, allowing only a small fraction of the x-rays to reach the x-ray plate.

Answer 12

radiopaque

Question 13

Item worn by workers exposed to x-rays to detect and record the amount of radiation to which they have been exposed.

Answer 13

film badge

Question 14

Chemical process in which the energy of an x-ray beam causes rearrangement and disruption within a substance, so that previously natural particles are changed to charged particles.

Answer 14

ionization

Question 15

A form of x-ray imaging in which digital x-ray sensors are used instead of traditional photographic film.

Answer 15

digital radiography

Question 16

Uses low-dose x-rays to visualize breast tissue.

Answer 16

mammography

Question 17

Scan made by beaming x-rays at multiple angles through a section of the patient’s body. Creates multiple cross-sectional images.

Answer 17

CT scan (formerly CAT scan)

Question 18

Material placed into a structure or fluid to distinguish it from surrounding structures of similar density (which makes radiographic imaging less clear).

Answer 18

contrast medium

Question 19

Radiopaque substance that is mixed in water and used for examination of the upper and lower GI tract.

Answer 19

barium sulfate

Question 20

Involves oral ingestion of barium sulfate so that the esophagus, stomach, and duodenum can be visualized.

Answer 20

upper GI (UGI) series

Question 21

Traces the passage of barium in a sequential manner as it moves through the small intestine.

Answer 21

small bowel follow-through (SBFT) series

Question 22

Lower GI series that opacifies the lumen (passageway) of the large intestine using a contrast enema. Has largely been replaced by endoscopy.

Answer 22

barium enema (BE) study

Question 23

Uses both a radiopaque and a radiolucent contrast medium.

Answer 23

double-contrast study

Question 24

X-ray image of blood vessels and heart chambers is obtained after iodine contrast is injected through a catheter into the appropriate blood vessel or heart chamber.

Answer 24

angiography (angiogram and arteriogram used interchangeably)

Question 25

X-ray imaging after injection of iodine contrast into bile ducts.

Answer 25

cholangiography

Question 26

X-ray image of iodine contrast-injected blood vessels is produced by taking two x-ray pictures (the first without contrast) and using a computer to subtract obscuring shadows from the second image.

Answer 26

digital subtraction angiography (DSA)

Question 27

X-ray record of the endometrial cavity and fallopian tubes is obtained after injection of iodine contrast material through the vagina and into the endocervical canal.

Answer 27

hysterosalpingography

Question 28

X-ray imaging of the spinal cord after injection of iodine contrast agent into the subarachnoid space surrounding the spinal cord.

Answer 28

myelography

Question 29

X-ray imaging of the renal pelvis and urinary tract.

Answer 29

pyelography

Question 30

The use of x-rays and a fluorescent screen to produce real-time video images.

Answer 30

fluoroscopy

Question 31

Radiologists who perform invasive procedures (therapeutic or diagnostic) usually under ultrasound guidance or with fluoroscopic imaging.

Answer 31

interventional radiologist

Question 32

Destruction of tumors and tissues done by interventional radiologists.

Answer 32

radiofrequency ablation

Question 33

Uses high-frequency inaudible sound waves that bounce off body tissues and are then recorded to give information about the anatomy of an internal organ.

Answer 33

ultrasonography

Question 34

Instrument placed on or near the skin which emits sound waves during an ultrasound.

Answer 34

transducer (or probe)

Question 35

Record produced by ultrasound imaging.

Answer 35

sonogram

Question 36

Uses magnetic fields and radio waves rather than x-rays. Better than CT scans for soft tissue images.

Answer 36

magnetic resonance imaging (MRI)

Question 37

Contrast agent most commonly used in MRI examinations.

Answer 37

gadolinium (Gd)