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kinn's Chapter 50

TermDefinition
angiocardiography Radiography of the heart and great vessels using an iodine contrast medium.
angiography Radiography of blood vessels using an iodine contrast medium.
angioplasty An interventional technique in which a catheter is used to open or widen a blood vessel to improve circulation.
anteroposterior (AP) A frontal projection in which the patient is supine or facing the x-ray tube.
aortogram Radiography of the aorta using an iodine contrast medium.
arteriography Radiography of arteries using an iodine contrast medium.
arthrogram Fluoroscopic examination of the soft tissue components of joints with direct injection of a contrast medium into the joint capsule.
axial projections Radiographs taken with a longitudinal angulation of the x-ray beam; sometimes referred to as semiaxial projections.
bucky A moving grid device that prevents scatter radiation from fogging the film.
cathartics Laxative preparations.
computed tomography (CT) A computerized x-ray imaging modality that provides axial and three-dimensional scans.
contrast media Radiopaque substances used to enhance the visibility of soft tissues in imaging studies.
coronal plane The plane that divides the body into anterior and posterior parts.
coulombs per kilogram (C/kg) The international unit of radiation exposure.
dosimeter A badge for monitoring radiation exposure of personnel.
embolization An interventional technique in which a catheter is used to block off a blood vessel to prevent hemorrhage.
fluoroscopy Direct observation of an x-ray image in motion.
frontal projection A radiographic view in which the coronal plane of the body or body part is parallel to the film plane; AP or PA.
gantry A doughnut-shaped portion of a scanner that surrounds the patient and functions, at least partly, to gather imaging data.
Gray (Gy) The international unit of radiation dose.
intravenous urogram (IVU) Radiographic examination of the urinary tract using intravenous injection of an iodine contrast medium.
latent image Invisible changes in exposed film that become an image when the film is processed.
lateral projections Radiographic views in which the sagittal plane of the body or body part is parallel to the film.
limited radiography Usually in an outpatient setting, that does not require the same credentials as for professional radiologic technology; also called practical radiography.
lower gastrointestinal series Fluoroscopic examination of the colon, usually using rectal administration of barium sulfate as a contrast medium; also called a barium enema.
magnetic resonance imaging (MRI) An imaging modality that uses a magnetic field and radiofrequency pulses to create computer images of both bones and soft tissues in multiple planes.
myelography Fluoroscopic examination of the spinal canal with spinal injection of an iodine contrast medium.
NPO Nothing by mouth.
nuclear medicine An imaging modality that uses radioactive materials injected or ingested into the body to provide information about the function of organs and tissues.
oblique projections Radiographic views in which the body or part is rotated so that the projection is neither frontal nor lateral.
phosphors Fluorescent crystals that give off light when exposed to x-rays.
posteroanterior (PA) A frontal projection in which the patient is prone or facing the x-ray film or image receptor.
rad The conventional unit of radiation dose.
radiograph An x-ray image.
radiographer A person qualified to perform radiographic examinations.
radiography The process of taking diagnostic images using x-rays.
radiologist A physician who specializes in medical imaging or therapeutic applications of radiation.
radiolucent Pertaining to a substance that is easily penetrated by x-rays; these substances appear dark on radiographs.
rem The conventional unit of radiation dose equivalent.
roentgen (R) The conventional unit of radiation exposure.
sagittal plane The plane that divides the body into right and left parts.
Sievert (Sv) The international unit of radiation dose equivalent.
sonography An imaging modality that uses sound waves to produce images of soft tissues.
tracers Radioactive substances administered to patients for nuclear medicine imaging procedures.
transducer The part of the sonography machine that is in contact with the patient.
transverse plane The plane that divides the body into superior and inferior parts.
upper gastrointestinal (UGI) series Fluoroscopic examination of the esophagus, stomach, and duodenum using oral administration of barium sulfate as a contrast medium.
Created by: mrsdancona