Radiology and Diagnostic Imaging Flashcards Preview

Medical Terminology > Radiology and Diagnostic Imaging > Flashcards

Flashcards in Radiology and Diagnostic Imaging Deck (116):
1

angiocardiography

A specialized diagnostic procedure in which a catheter (a hollow, flexible tube) is introduced into a large vein or artery, usually of an arm or a leg, and then threaded through he circulatory system to the hear.

2

angiography

a series of X-ray films allowing visualization of internal structures after the introduction of a radiopaque substance.

3

cerebral angiography

the injection of a radiopaque contrast medium into an arterial blood vessel (carotid, femoral, or brachial) to make visualization of the cerebral vascular system via X-ray possible

4

renal angiography

X-ray visualization of the internal anatomy of the renal blood vessels after injection of a contrast medium

5

arteriography

X-ray visualization of arteries following the introduction of a radiopaque contrast medium into the bloodstream through a specific vessel by way of a catheter.

6

arthrography

the process of taking X-rays of the inside of a joint after a contrast medium (substance that makes the inside of the joint visible) has been injected into the joint.

7

barium enema (BE)

infusion of a radiopaque contrast medium, barium sulfate, into the rectum. The contrast medium is retained in the lower intestinal tract while the X-ray films are obtained of the lower GI tract.

8

barium swallow

Oral administration of a radiopaque contrast medium, barium sulfate, which flows into the esophagus as the person swallows.

9

bronchography

a bronchial examination via X-ray following the coating of the bronchi with a radiopaque substance.

10

cholangiography

visualizing and outlining of the major bile ducts following an intravenous injection of a contrast medium

11

cholangiography (percutaneous transhepatic) (PTC, PTHC)

an examination of the bile duct structure, using a needle to pass directly into a intrahepatic bile duct to inject a contrast medium

12

cholangiopancreatography (endoscopic retrograde) (ERCP)

a procedure that examines the size and filling of the pancreatic and biliary ducts through direct radiographic visualization with a fiberoptic endoscope

13

cholecystography (oral)

visualization of the gallbladder through X-ray following the oral ingestion of pills containing a radiopaque iodinated dye.

14

cineradiography

a diagnostic technique combining the techniques of fluoroscopy, radiography, and cinematography by filming the images that develop on a fluorescent screen with a movie camera.

15

computed axial tomography (CT, CAT)

a painless, noninvasive diagnostic X-ray procedure using ionizing radiation that produces a cross-sectional image of the body; also called computed tomography.

16

voiding cystourethrography

X-ray visualization of the bladder and urethra during the voiding process, after the bladder has been filled with a contrast material. The record produced is known as a cystourethrogram

17

digital subtraction angiography (DSA)

X-ray images of blood vessels only, appearing without any background due to the use of a computerized digital video subtraction process.

18

echocardiography

a diagnostic procedure for studying the structure and motion of the heart. It useful in evaluating structural and functional changes in a variety of heart disorders.

19

fluoroscopy

a radiological technique used to examine the function of an organ or a body part by using a fluoroscope.

20

hysterosalpingography

an x-ray of the uterus and the fallopian tubes by injecting a contrast material into these structures.

21

lymphangiography

an X-ray assessment of the lymphatic system following injection of a contrast medium into the lymph vessels in the had or foot

22

magnetic resonance imaging (MRI)

a noninvasive scanning procedure that provides visualization of fluid, soft tissue, and bony structures by using electromagnetic energy,

23

mammography

the process of taking X-rays of the soft tissue of the breast to detect various benign and/or malignant growths before they can be felt.

24

myelography

introduction of contrast medium into the lumbar subarachnoid space through a lumbar puncture to visualize the spinal cord and vetebral canal through X-ray examination.

25

positron emission tomography (PET)

scan is a noninvasive diagnostic imaging method that demonstrates the biological functin of the body before anatomical changes take place. The scan produces computerized radiographic images of the body structures when radioactive substances (positrons) are administered to the patient (inhaled or injected).

26

pyelography (intravenous) (IVP)

also known as intravenous pyelogram or excretory urogram, this radiographic procedure provides visualization of the entire urinary tract; that is, the kidneys, ureters, bladder, and urethra.

27

radiation therapy

the treatment of neoplastic disease by using X-rays or gamma rays, usually from a cobalt source, to deter the growth of malignant cells by decreasing the rate of cell division or impairing DNA synthesis. Also called radiotherapy
The delivery of ionizing radiation to accomplish one or more of the following:
1. Destruction of tumor cells
2. Reduction of tumor size
3. Decrease in pain
4. Relief of obstruction
5. To slow or stop the spread of cancer cells

28

radioactive iodine uptake

an examination that determines the position, size, shape, and physiological function of the thyroid gland through the use of radionuclear scanning.

29

scanning (bone, brain, liver, lungs)

the process of recording the emission of radioactive waves using gamma camera (scanner) after an intravenous injection of a radionuclide material into the particular part of the body being studied.

30

single-photon emission computer tomography (SPECT)

a nuclear imagine procedure that shows how blood flows to tissues and organs.

31

small bowel follow-through

oral administration of a radiopaque contrast medium, barium sulfate, which flows through the GI system. X-ray films are obtained at timed intervals to observe the progression of the barium through the small intestine.

32

tomography

an X-ray technique used to construct a detailed cross section, at a predetermined depth, of a tissue structure.

33

ultrasonography

also called ultrasound; sonogram. This is a procedure in which sound waves are transmitted into the body structures as a small transducer is passed over the patient's skin.

34

venography

also called phlebography; it is a technique used to prepare an X-ray image of veins that have been injected with a contrast medium that is radiopaque

35

X-rays

the use of high-energy electromagnetic waves, passing through the body onto photographic film, to produce a picture of the internal structures of the body for diagnosis and therapy. A chest X-ray is a visualization of the interior of the chest; critical in the complete evaluation of the cardiac and pulmonary systems.

36

abduction

movement of a limb away from the body

37

adduction

movement of a limb toward the axis of the body

38

anteroposterior

from the front to the back of the body, commonly associated with the direction of the X-ray beam.

39

aortography

a radiographic process in which the aorta and its branches are injected with any of various contrast media for visualization.

40

arthrography

a method of radiographically visualizing the inside of a joint by injecting air or contrast medium

41

axial

pertaining to or situated on the axis of a structure of part of the body

42

betatron

a cyclic accelerator that produces high-energy electrons for radiotherapy treatments

43

brachytherapy

the placement of radioactive sources in contact with or implanted into tissues to be treated.

44

digital radiography

any method of X-ray image formation that uses a computer to store and manipulate data.

45

Doppler effect

the apparent change in frequency of sound or light waves emitted by a source as it moves away from or toward an observer

46

eversion

a turning outward or inside out, such as a turning of the food outward at the ankle

47

extension

a movement allowed by certain joints of the skeleton that increases the angle between two adjoining bones, such as extending the leg (which increases the angle between the femur and the tibia)

48

flexion

a movement allowed by certain joints of the skeleton that decreases the angle between two adjoining bones, such as bending the elbow (which decreases the angle between the humerus and the ulna)

49

fluorescence

the emission of light of one wavelength (usually ultraviolet) when exposed to light of a different (usually shorter) wavelength; a property possessed by certain substances

50

gamma camera

a device that uses the emission of light from a crystal struck by gamma rays to produce an image of the distribution of radioactive material in a body organ

51

gamma rays

an electromagnetic radiation of short wavelength emitted by the nucleus of an atom during a nuclear reaction. Also called gamma radiation

52

half-life

the time required for a radioactive substance to lose 50% of its activity through decay

53

interstitial therapy

radiotherapy in which needles or wires that contain radioactive material are implanted directly into tumor areas.

54

inversion

an abnormal condition in which an organ is turned inside out, such as a uterine inversion; also refers to turning inward, as in inversion of the ankle.

55

ionization

the process in which a neutral atom or molecule gains or loses electrons and thus acquires a negative or positive electrical charge.

56

irradiation

exposure to any form of radiant energy (such as heat, light, or X-ray)

57

lethal

capable of causing death

58

linear accelerator

an apparatus for accelerating charged subatomic particles used in radiotherapy, physics research, and the production of radionuclides

59

lymphangiography

the X-ray examination of lymph glands and lymphatic vessels after an injection of contrast medium

60

nuclear medicine

a medical discipline that uses radioactive isotopes in the diagnosis and treatment of disease

61

orthovoltage

the voltage range of 100 to 350 KeV supplied by some X-ray generators used for radiation therapy

62

palliative

to sooth or relieve

63

piezoelectric

the generation of a voltage across of solid when a mechanical stress is applied.

64

posteroanterior

the direction from back to front

65

prone

being in horizontal position when lying face down

66

pyelography

a technique in radiology for examining the structures and evaluating the function of the urinary system.

67

rad

abbreviatgion for radiation abosorbed dose; the basic unit of asorbed dose of ionizing radiation

68

radioactivity

the ability of a substance to emit rays or particles (alpha, beta, or gamma) from its nucleus

69

radiographer

an allied health professional trained to use X-ray machines and other imaging equipment to produce images of the internal structures of the body; also known as a radiologic technologist.

70

radioimmunoassay

a technique in radiology used to determine the concentration of an antigen, antibody, or other protein in the serum

71

radioisotope

is used for therapeutic and diagnostic purposes

72

radiologist

a physician who specializes in radiology

73

radiology

the study of the diagnostic and therapeutic uses of X-rays; also known as roentgenology

74

radiolucent

pertaining to materials that allow X-rays to penetrate with a minimum of absorption

75

radionuclide (radioisotope)

an isotope (or nuclide) that undergoes radioactive decay

76

radiopaque

not permitting the passage of X-rays or other radiant energy

77

radiopharmaceutical

a drug that contains radioactive atoms

78

recumbent

lying down or leaning backward

79

roentgenology

the study of the diagnostic and terapeutic uses of X-rays; also known as radiology

80

supine

lying horizontally on the back

81

teletherapy

radiation therapy administered by a machine position at some distance from the patient

82

tomography

an x-ray technique that produces a film representing a detailed cross section of tissue structure at a predetermined depth

83

transducer

a handheld device that sends and receives a sound-wave signal.

84

ultrasound

sound waves at the very high frequency of more than 20,000 kHz (vibrations per second)

85

uptake

the drawing up or absorption of a substance.

86

AP

anteroposterior

87

Ba

barium

88

BE

barium enema

89

CAT

computed axial tomography

90

C-spine

cervical spine (film)

91

CT

computed tomography

92

CXR

chest X-ray

93

DSA

digital subraction angiography

94

DSR

dynamic spatial reconstructor

95

ECHO

echocardiogram

96

ERCP

endoscopic retrograde cholangiopancreatography

97

Fx

fracture

98

IVC

intravenous cholangiography

99

IVP

intravenous pyelogram

100

IVU

intravenous urography

101

KUB

kidneys, ureters, bladder

102

LGI

lower gastrointestinal (serious)

103

MRA

magnetic resonance angiography

104

MRI

magnetic resonance imaging

105

NMR

nuclear magnetic resonance (imaging)

106

NPO

nothing by mouth

107

PA

posteroanterior

108

PET

positron emission tomography

109

PTC, PTHC

percutaneous transhepatic cholangiography

110

rad

radiation absorbed dose

111

RAI

radioactive iodine

112

RIA

radioimmunoassay

113

SBS

small bowel series

114

SPECT

single-photon emission computed tomography

115

UGI

upper gastrointestinal (series)

116

u/s

ultrasound