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angiocardiography
cardiac catheterization
catheter into a large vein or artery and threaded through the circulatory system to the heart
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angiography
series of X-ray films allowing visualization of internal structures after the introduction of a radiopaque substance
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cerebral angiography
injection of a radiopaque contrast medium into an arterial blood vessel to amke visualization of the cerebral vascular system via X-ray possible
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arteriography
X-ray visualization of arteries following the introduction of a radiopaque contrast medium into the bloodstream thorugh a specific vessel by way of a catheter
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arthrography
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
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cholangiography
visualization and outlining of the major bile ducts following an intravenous injection of a contrast medium
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cholangiography (percutaneous transheptaic) (PTC, PTHC)
examination of the bile duct structure, using a needle to pass direclty into an intrahepatic bile duct to inject a contrast medium
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cholangiopancreatography
procedure that examines the size and filling of the pancreatic and biliary ducts through direct radiographic visualization with a fiberoptic endoscope
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cholecystography (oral)
visualization of the gallbaldder through X-ray following the oral ingestion of pills ocntaining a radiopaque iodinated dye
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cineradiography
combining the techniques of fluoroscopy, radiography, and cinematography of by filming the images that develop of a fluorescent screen with a movie camera
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computed axial tomography (CT, CAT)
computed tomography
painless noninvasive diagnostic X-ray procedure using ionizing radiation that produces a cross-sectional image of the body
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voiding cystourethrography
x-ray visualization of the bladder and urethra during the voiding process, after the bladder ahs been filled with contrast material
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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
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echocardiography
studying the structure and motion of the heart
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fluoroscopy
examine the function of an organ or a body part by using a fluoroscope
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magnetic resonance imaging (MRI)
noninvasive scanning procedure that provides visualization of fluid, soft tissue, and bony structures by using electromagnetic energy
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myelography
introdcution of contrast medium into the lumbar subarachnoid space through a lumbar puncture to visualize the spinal cord and vertebral canal through X-ray examination
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positron emission tomography (PET)
noninvasive demonstrates the biological function of the body before anatomical changes take place
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pyelography
intravenous
IVP
excretory urogram
visualiztion of the entire urinary tract
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radioactive iodine uptake
examination that determines the position, size, shape, and physiologiacl function of the thyroid gland through the use of radionuclear scanning
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scanning (bone, brain, liver, lungs)
recording the emission of radioactive waves using a gamma camera after an intravenous injection of a radionuclide material into the particualr part of the body being studied
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single-phantom emission computed tomography (SPECT)
shows how blood flows to tissues and organs
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small bowel follow-through
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
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tomography
x-ray technique used to construct a detailed cross section, at a predetermined depth, of a tissue structures
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venography
phlebography
prepare an x-ray images of veins that have been injected a contrast medium that is radiopaque
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aortography
aorata and its branches are injected with any of various contrast media for visualization
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betatron
cyclic accelerator that produces high-energy electrongs for radiotherapy treatments
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brachytherapy
placement of radioactive sources in contact with or implanted into the tissues to be treated
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Doppler effect
apparent changes in frequency of sound or light waves emitted by a source as it moves away from or toward an observer
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fluoresence
emission of light of any wavelength (usually ultraviolet) when exposed to light of a different (usually shorter) wavelength
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interstitial therapy
radiotherapy in which needles or wires that contain radioactive material are implanted directly into tumor areas
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ionization
process in which a neutral atom or molecule gains or loses electrons and thus acquires a negative or positive electric charge
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irradiation
exposure to any form of radiant energy
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linear accelerator
apparatus for accelerating charged subatomic particles used in radiotherapy, physics research, and the production of radionuclides
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lymphangiography
x-ray examination of lymph glands and lymphatic vessels after an injection of contrast medium
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orthovoltage
voltage range fo 100 to 350 KeV supplied by some X-ray generators used for radiation therapy
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palliative
too soothe or relieve
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piezoelectric
generation of voltage across a solid when a mechanical stress is applied
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rad (RAD)
radiation absorbed dose; basic unit of absorbed dose of inoizing radiation
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radioactivity
ability of a substance to emit rays or particles form its nucleus
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radioimmunoassay
technique in radiology used to determine the ocncentration of an antigen, antibody, or other protein in the serum
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radioisotope
radioacive isotope used for therapeutic and diagnostic purposes
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radiolucent
pertaining to materials that allow X-rays to penetrate with a minimum of absorption
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radionuclide
isotope (nuclide) that undergoes radioactive decay
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radiopaque
not permitting the passage of X-rays or other radiant energy
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radiopharmaceutical
drug that contains radioactive atoms
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telethrapy
radiation therapy administered by a machine positioned at some distance from the patient
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transducer
handheld device that sends and receives a sound-wave signal
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uptake
drawing up or absorption of a substance
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