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radiology
| Question | Answer |
|---|---|
| ALARA concept | concept of radiation protection that states that all exposures should be kept as low as reasonably achievable |
| Anode | The positive electrode in the X-ray tube |
| Atom | The basic Unit of matter |
| Bremsstrahlung radiation | braking radiation the sudden deceleration of electrons as they interact with highly positively |
| Cathode | The negative electrode in the X-ray tube |
| central ray | at the center of the bream |
| contrast | difference in degrees of blackness on an image |
| control panel | the portion of the X-ray unit that contains the master switch the indicator light, the selector buttons and the exposure button |
| density | the overall darkness or blackness on an image |
| dental radiography | the process of recording images of the teeth and adjacent structures by exposure to radiation |
| Digital imaging | a filmless method of capturing an image and displaying it by using an image receptor an electronic signal and a computer to process and store the image |
| distortion | change in the size of an image caused by an incorrect vertical angulation |
| dose | the amount of energy absorbed by tissues |
| dosimeter | a device used to detect and measure an accumulated dosage of radiation |
| electron | a negatively charged particle in the atom |
| energy | the ability to do work |
| extension arm | flexible arm that is attached to the x-ray tube head |
| genetic | effects of radiation that are [assed on to future generations |
| image | film based or digitally produced recordings of anatomic structures |
| image receptor | a recording medium for an image normally film phosphor storage plate or a digital sensor |
| intensity | the total energy of the xray beam |
| ion | an electrically charged particle |
| ionization | process by which electrons are removed from atoms |
| ionizing | radiation that produces ionization resulting in harmful effects |
| kilovoltage | highest voltage of xray tube used during an exposure |
| latent | time between exposure to ionizing radiation and appearance of symptoms |
| lead apron | device used to protect the reproductive and blood forming tissues from scatter radiation |
| magnification | the proportional enlargement |
| Milliampere | one thousandth of an ampere a unit of measurement used to describe the intensity off of electrical current |
| photon | a mixture bundle of pure energy that has no weight or mass |
| primary bean | the most penetrating beam produced at the target of the anode |
| primary radiation | same as primary beam |
| radiation | forms of waves of energy emission through space or material |
| radiograph | image produced on photosensitive film by exposing the film to radiation and then processing It |
| radiology | the science or study of radiation as used in medicine |
| sensor | a solid state image receptor that contains a silicon chip with an electric circuit |
| sharpness | a measure of how well an image reproduces that fine details or outline of an object |
| somatic | effects of radiation that cause illness and are responsible for poor health |
| beam alignment device | assists in the positioning of the position indicator device |
| bitewing | image view that shows the crowns of both arches on one film |
| calcium tungstate | common type of phosphor |
| Cassette | Contains extra oral films during exposure |
| cephalometric film | shows the bony and soft tissue areas of the facial profile |
| charge coupled device | a solid state image sensor used in intramural digital imaging |
| digital image | electronic signals captured by sensors and splayed on computer monitors |
| digitize | scanning of traditional film based radiographs into a digital image |
| extraoral film | film designed for use in cassettes |
| film speed | the emulsion on the film to radiation |
| intensifying screen | the part inside an extra oral cassette that coverts xray energy into visible light which in turn exposes screen film |
| introral film | film designed for placement in the patients mouth |
| latent image | the invisible image on the xray film after exposure but before processing |
| occlusal | radiographic view that shows large areas of the maxilla or mandible |
| panoramic film | used in cassettes to provide a wide view that shows the crown root tip and surrounding structures |
| periodical | radiographic view that shows the crown root as the surrounding structures |
| phosphor storage plate | reusable film sized plates coated with phosphor as the image receptor |
| positioning instruments | intraoral devices used to position and hold the film sensor or psp |
| radiograph | image produced on photosensitive filmm by exposing the film to radiation and then processing it |
| tele dentistry | process of using electronic transfer of images and other information on consultation and or insurance then processing it |
| tube side | solid white side of the film packet |
| artifact | a blemish or unintended radiographic image that is not present in the actual structure |
| confidentiality | never revealing any personal information about the patient |
| disclosure | process of informing the patient about a procedure for example the procedure for taking X-rays |
| image receptor | recording medium for an image a digital sensor a phosphor storage plate or conventional dental xray film |
| informed consent | permission granted by a patient after being informed about the risks benefits and alternatives of a procedure |
| liability | accountability or legal responsibility |
| malpractice | professional negligence |
| negligence | the failure to provide a proper or reasonable level of care |
| phosphor storage plates | reusable film sized flexible plates coated with phosphor as the image receptor |
| positioning devices | intraoral devices used to position and hold the film sensor or pop |
| quality assurance | a plan to ensure that the dental office produces consistent high quality images with a minimum of exposure to patients and personnel |
| quality control tests | specific tests used to ensure quality in dental xray equipment supplies and film processing |
| risk management | policies and procedures that will reduce the chance that a malpractice lawsuit will be brought against the dentist key areas of risk management |
| standard of care | level of knowledge skill and care comparable with that of other dentists who are treating similar patients under similar conditions |
| angulation | alignment of central ray of xray beam in horizontal and vertical |
| Bisecting | intraoral technique of exposing dental images |
| bitewing | type of image used for interproximal examination |
| central ray | xray at center of beam |
| contact area | area of the medial or distal surfaces of a tooth that touches an adjacent tooth in the same arch |
| Crystal bone | coronal portion of alveolar bone found between the teeth |
| developmental disability | impairment of mental or physical functioning that usually occurs before adulthood and lasts indefinitely |
| diagnostic quality | referring to images with the proper structures and necessary density contrast definition and detail for diagnostic purposes |
| interproximal | between two adjacent surfaces |
| intersecting | cutting across or through |
| long axis of the tooth | imaginary line dividing the tooth longitudinally into two equal halves |
| occlusal technique | used to examine large areas of the upper or lower jaw |
| parallel | moving or lying in the same plane always separated by the same distance |
| paralleling technique | intraoral technique of exposing periapical and bitewing images |
| perpendicular | intersecting at or forming a right angle |
| physical disability | impairment in certain functions of the body such as vision hearing or mobility |
| positioning instrument | intraoral device used to position and hold the film sensor or psp |
| Cephalostat | special device that allows the operator to easily position both film and patient |
| computed tomography | radiographic technique that produces images or slices of one layer or section of one layer or section of the specific areas. also referred to as computed axial tomography |
| cone beam computed tomography | a three dimensional digital imaging method that uses a cone shaped beam of radiation that rotates around the patient |
| digital panoramic units | a filmless method of recording a panoramic image and displaying |
| exposure controls | features that allows the operator to adjust the miiliamperage |
| extraoral limages | images taken when large areas of the skill or jaw must be examined |
| extraoral imaging | an image of the teeth and bones made by placing the film or cassette against the face or the head and projecting the xray from the opposite side |
| field of view | the area that can be shown when performing imaging procedures |
| focal through | imaginary three dimensional horseshoe shaped zone used to focus panoramic radiographs |
| Frankfort plane | imaginary plane that passes through the top of the ear canal and the bottom of the eye socket |
| midsagittal | imaginary line that divides the patients face into right and left sides |
| temporomandibular | joint on each side of the head that allows movement of the mandible |
| three dimensional digital imaging | an image that demonstrates anatomy in three dimensions |
Created by:
dakotarayne