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Radiology
| Term | Definition |
|---|---|
| Anechoic | images that appear black on ultrasound scans. |
| Bucky | A component of X-ray units that hold the x-ray film cassettes and moves the grid during the x-ray exposure. |
| Anode | A positively charged electrode by which the electrons leave a device. |
| Cathode | The negatively charged electrode by which electrons enter an electrical device. |
| Annular array | Fabricated by cutting concentric rings into a transducer substrate to create a series of annular elements. |
| Collimators | Devices used in the x-rays tube housing, along with an arrangement of mirrors and lights. |
| ALARA | As low as reasonably achievable. Making every reasonable effort to maintain exposures to radiation. |
| Contrast | The difference in density or difference in the degree of grayness between areas of the radiographic image. |
| Direct Exposure film | A film consists of a thin, transparent sheet of polyester or similar material. |
| Distance enhancement | couldn't find this one i don't have my book today. |
| Echoic | the imitation of a natural sound. |
| Film latitude | the ability of an emulsion to record a wide range of densities. |
| Film-focal Distance (FFD) | the distance between the center of the anode of the x-ray tube and the film |
| Fluroscopy | a study of moving body structures - similar to and X-ray. |
| Focused Grids | a device consisting essentially of a series of narrow lead strips closely spaced on their edges and separated by spacers of low density materials |
| Heel effect | a variation of the intensity of x-rays emitted by the anode depending on the direction of emission along the anode-cathode axis. |
| Hyperechoic | Lesion defined by an echogenicity greater than that of subcutaneous fat or equal to that. |
| Hypoechoic | Mass tissue in the body thats more dense or solid than usual. |
| Intensifying Screens | used in the x-ray cassette to intensify the effect of the x-ray photon by producing a larger number of light photons. |
| Isoechoic | A mammograpic mass located in fatty tissue and not depicted at fundamental US. |
| Kilovoltage peak(kVp) | The maximum high voltage applied across an x-ray tube during the creation of x-rays within it. |
| Latent Image | an invisible image produced by the exposure to light of a photosensitive material such as photographic film. |
| Maximum permissible dose (MPD) | the amount of ionizing radiation a person may be exposed to supposedly without being harmed. |
| Milliamperage(mA) | a major factor in determining the quantity of x-rays produced |
| Mirror Image | when an ultrasound beam is not reflected directly back to the transducer after hitting a reflective surface. |
| Object Film Distance(OFD) | The distance between the object and the film. |
| Penumbra Effect | A half-shadow that occurs when a light source is only partly covered by an object. |
| Radiographic Density | a measure of the degree of film darkening. |
| Radiolucent | transparent to x-rays |
| Radiopaque | opaque to x-rays or similar radiation. |
| Rem | a unit of effective absorbed dose of ionizing radiation in human tissue. |
| Sievert(SV) | The SI unit for the amount of ionizing radiation required to produce the same biological effect as one rad of high-penetration x-rays, equivalent to a gray for x-rays |
| Slice thickness | The resolution of the scan |
| Sonolucent | allowing passage of ultrasonic waves without production of echoes that are due to reflection of some of the waves |
| Source-image distance(SID) | The distance measured between the focal spot target on a x-ray tube to the image receptor of a x-ray cassette. |
| Ultrasonography | a technique using echoes of ultrasound pulses to delineate objects or areas of different density in the body. |
| Thorax | A chest radiograpgh |
| Abdomen | abdominal x-ray uses a very small dose of ionizing radiation to produce pictures of the inside of the abdominal cavity |
| Xyphoid | the smallest of the three parts of the sternum |
| Thoracic inlet | The most superior aperture to the thorax and the boundary of the roof of the mediastinum. |
| Axillary | A view useful for detecting anterior or posterior shoulder dislocations that are not evident in the AP view. |
| Inguinal | swelling or pain in the groin. |
| Ventral | Body area situated toward the back or top line of quadrupeds |
| Dorsal | Toward the back |
| Medial | toward the mid line |
| Lateral | away from the median |
| Cranial | toward the head |
| Caudal | towards the tail |
| Rostral | towards the nose |
| Palmar | caudal aspect on the front limb |
| Plantar | caudal aspect of the rear limb. |
| Analgesia | the inibility to feel pain |
| arrhythmia | improper beating of the heart |
| atelectasis | complete or partial collapse of a lung or lobe of a lung |
| auscultation | the action of listening to sounds from the heart, lungs, or other organs. |
| Bradycardia | slower than expected heart rate. |
| capillary refill time | time needed for the color to return |
| Central catheter | a catheter placed into a large vein for access |
| closed suction drain | used to remove fluids that build up in areas of your body after surgery or when you have an infection. |
| debridement | the removal of damaged tissue or foreign objects from a wound. |
| decubital ulcer | technical term for bedsore |
| dyspnea | difficult breathing |
| eschar | dead tissue that eventually sloughs off healthy skin after an injury |
| euthanasia | the painless killing of a patient suffering from an incurable and painful disease or in an irreversible coma. |
| hyperthermia | when the body loses heat faster than it can produce heat, causing a dangerously low body temperature. |
| hypothermia | when the body loses heat |
| intraosseous | the process of injecting directly into the marrow of a bone. |
| lavage | washing out of a body cavity, such as the colon or stomach. |
| Mentation | mental activity |
| Normothermia | the condition at which a body is at normal temp |
| Nystagmus | involuntary eye movement which may cause the eye to move rapidly |
| orthopnea | discomfort when lying down flat |
| penrose drain | a soft, flexible rubber tube used as a surgical drain |
| percussion | a method of physical examination |
| phlebitis | inflammation if a vein |
| presenting complaint | couldnt find |
| Tachy cardia | faster heart rate then normal |
| Tenesmus | a continual or recurrent inclination to evacuate the bowels, cause by disorder of the rectum or other illness |
| Sertor | couldnt find |
| Stridor | a high - pitched, whistling sound most often heard while taking in a breath. |
| Pulse deficit | a deficit that occurs when there are fewer pulses than there are heartbeats |
| tachypnea | breathing that is abnormally rapid and often shallow |
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