language of medicine chapter 20

63 terms by tntcook

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nuclear medicine

medical specialty that studies the characteristics and uses of radioactive substances in diagnosis of disease

radiologist

specializes diagnostic techniques such as ultrasound, MRI, and CT scans

radiopaque substance

absorbs most of the x-rays it is exposed to

barium enema

iodine compound is given and x-rays are taken of the intestinal tract

IVP

x-ray of the renal pelvis and urinary tract after injecting dye into a vein

myelogram

x-ray of the spinal cord

arthrogram

x-ray of the joint

tomography

x-ray test to show an organ in depth

characteristics of a CT scan

uses ionizing x-rays and computer to produce a transverse image of the body organs

characteristics of an MRI

sagittal, frontal, and cross-sectional images are produced using magnetic and radio waves

PA view

x-ray of a patient upright with their back to the x-ray machine and the film to the chest

adduction

moving the part of the body toward the midline of the body

radioisotope

substance that gives off high-energy particles or rays

perfusion study of the lung

test that is a radiopharmaceutical injected intravenously and traced within the vessels of the lung

vivo test

experiments are performed in a living organism

liver and spleen scans can detect

cirrhosis and splenomegaly due to abscess or tumor

interventional radiologists perform

placement of drainage catheters, occlusion of bleeding vessels, istillation of antibiotics or chemotherapy via catheters

ultrasound

uses a transducer

PACS

system to replace traditional films with digital equivalents

thallium-201

contrast material

FDG

radiopharmaceutial used in a PET scan

DICOM

protocol for transmission between imaging devices

SPECT

technique using a radioactive substance and a computer to create three-dimensional images

radiopaque

obstructing the passage of x-rays

radiolucent

permitting the passage of x-ray

sonographer

aids physicians in performing ultrasound procedures

radioisotape

radioactive element that gives off energy in the form of radiation

radiopharmaceutical

radioactive drug administered for diagnostic purposes

ionization

transformation of stable substances into changed particles

radiologist

a physician who specializes in diagnostic radiology

nuclear medicine

study of uses of radioactive substances in the diagnosis of disease

contrast studies

radiopaque substances are given and x-rays taken

cineradiography

use of motion picture techniques to record x-ray images

positron emission tomography

radioactive substance is given intravenously and a cross-sectional image is created of cellular metabolism based on local concentration of the radioactive substance

ultrasonography

echoes of high-frequency sound waves are used to diagnose disease

fluoroscopy

x-ray beams are focused from the body onto an image intensifier that glows as a result of the ionizing effect of x-rays

magnetic resonance imaging

a magnetic field and radio waves are used to form images of the body

computed tomography

x-ray pictures are taken circularly around an area of the body and a computer synthesizes the information into a composite axial picture

interventional radiology

therapeutic procedures are performed by a radiologist under the guidance of fluoroscopy or ultrasound

myelography

spinal cord

pyelography

renal pelvis of kidney and the urinary tract

angiography

blood vessels

arthrography

joints

upper GI series

esophagus, stomach, and small intestine

cholangiography

bile vessels

barium enema

lower gastrointestinal tract

hysterosalpingography

uterus and fallopian tubes

fluor/o

luminous, fluorescence

pharmaceut/o

drug

radi/o

x-rays

roentgen/o

x-rays

son/o

sound

therapeut/o

treatment

vitr/o

glass

viv/o

life

-gram

record

-graphy

process of recording

-lucent

to shine

-opaque

obscure

cine-

movement

echo-

a repeated sound

ultra-

beyond

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