Radiology And Diagnostic Imaging

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Aorta

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A radiographic process in which the aorta and it's branches are injected with any of various contract media for visualization

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Axial

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

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Betatron

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A cyclic accelerator that produces high energy electrons for radiotherapy treatments

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Brachytherapy

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

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Bronchography

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An x ray examination of the interior passageways of the lower respiratory tract (larynx trachea and bronchi) following the coating of these structures with a radiopaque substance

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Breakdown word

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Cineradiography

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The filming with a movie camera of the images that appear on a fluorescent screen especially those images of the body structures that have been injected with a nontoxic radiopaque medium diagnostic purposes.

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Computed tomography

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An x ray technique that produces a film representing a detailed cross section of tissue structure

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Digital radiography

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Any method of x image formation that uses a computer to store and manipulate data

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Doppler effect

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

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Eversion

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A turning outward or inside out such as a turning of the foot outward at the ankle

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Fluorescence

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The emission of light of one wavelength (usually ultraviolet) when exposed to light of a different (usually shorter) wavelength

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Fluoroscopy

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A technique in radiology for visually examining a part if the body or the function of an organ using fluoroscope

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Gamma camera

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

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Gamma rays

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

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Half life

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The time required for a radioactive substance to lose 50% of it's activity through decay

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Interstitial therapy

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Radiotherapy in which needles or wires that contain radioactive material implanted directly into tumor areas

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Inversion

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An abnormal condition in which an organ is turned inside out such as uterine inversion also refers to turning inward

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Ionization

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The 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

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Exposure to any form of radiant energy such as heat light or x ray

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Lethal

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Capable of causing death

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Linear accelerator

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

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MRI

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Medical imaging that uses radio frequency signals as it's source of energy

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Nuclear medicine

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

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Orthovoltage

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The voltage range of 100 KeV to 350 KeV supplied by some x ray generators used for radiation therapy

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Piezoelectric

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The generation of a voltage across a solid when a mechanical stress is applied

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Positron emission tomography

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A computerized radiographic technique that employs radioactive substances to examine the metabolic activity of various body structures

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Pyelography

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

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Rad

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Abbreviation for radiation absorbed dose. The basic unit of absorbed dose of ionizing radiation

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Radiation therapy

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The treatment of neoplastic disease by using x rays or gamma rays usually from Cobalt source to deter the growth of malignant cells by decreasing the rate of cell division or impairing DNA synthesis.

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Radioactivity

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The ability of a substance to emit rays or particles (alpha beta or gamma) from it's nucleus

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Radiographer

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An allied health professional trained to use x ray machines and other imaging

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Radiommunoassay

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

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Radioisotope

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A radioactive isotope (of an element) used for therapeutic and diagnostic purposes

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Radiolucent

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Pertaining to material that allow x rays to penetrate with minimum absorption

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Radionuclide (radioisotope)

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An isotope or nuclide that undergoes radioactive decay

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Radiopaque

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Not permitting the passage of X Rays or other radiant energy

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Radiopharmaceutical

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A drug that contains radioactive atoms

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Recumbent

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Lying down or leaning forward

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Scanning

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A technique for carefully studying area organ or system of the body by recording and displaying an image of the area

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Single-photon emission computed tomography

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A variation of computerized tomography scanning in which gamma camera detectors rotate around the patients body collecting data

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Teletherapy

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Radiation therapy administered by a machine positioned at some distance from the patient

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Tomography

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

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Transducer

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A held hand device that sends and receives a sound wave signal

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Ultrasound

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Sound waves at a very high frequency of more than 20000 kHz (vibrations per second)

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Uptake

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The drawing up or absorption of a substance

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Chol/e

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Bile

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Cine

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Pertaining to movement

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Cyst

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Sac bladder or cyst

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Fluor/o

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Luminous

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Hyster/o

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Uterus

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Pyel

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Renal pelvis

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Radi

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Radiation or radius

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Ren/o

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Kidney

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Son/o

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Sound

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Tel/e

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Distance

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Tom/o

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To cut

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Ven/o

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Vein

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Xer

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Dry

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AP

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Anterioposterior

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BA

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Barium

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BE

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Barium enema

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CAT

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Computed axial tomography

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C-Spine

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Cervical spine (film)

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CT

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Computed tomography

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CXR

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Chest x-ray

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DSA

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Digital substraction angiography

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DSR

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Dynamic spatial reconstructor

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ECHO

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Echocardiogram

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ERCP

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Endoscopic retrograde cholangiopancreatography

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IVC

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Intravenous cholangiography

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KUB

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Kidneys ureters bladder

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LGI

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Lower gastrointestinal series

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MRA

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Magnetic resonance angiography

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MRI

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Magnetic resonance imaging

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NMR

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Nuclear magnetic resonance imaging

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NPO

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Nothing by mouth

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PA

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Posteroanterior

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PET

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Positron emission tomography

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PTC PTHC

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Percutaneous transhepatic cholangiography

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Rad

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Radiation absorbed dose

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RAI

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Radioactive iodine

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RIA

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Radioimmunoassay

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RAIU

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Radioactive iodine uptake (scan)

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SBS

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Small bowel series

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SPECT

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Single photon emission computed tomography

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UGI

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Upper gastrointestinal series

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U/s

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Ultrasound