Term
| what is the purpose of state of the art flouro equipment |
|
Definition
| to optimize quality of th eimage and to reduce radiation exposure to patients |
|
|
Term
| radiation safety features are designed to protect who |
|
Definition
| patients and all personnel |
|
|
Term
| what safety features must all imaging equipment have |
|
Definition
| protective tube housing and correctly functioning control panel |
|
|
Term
| what type of radiation does the protective housing protect from |
|
Definition
| off-focus or leakage radiation |
|
|
Term
| what are the radiation requirements for the housing |
|
Definition
| cannot exceed 100mR/hr at 1m when operated at it's highest voltage |
|
|
Term
| what are the requirements of the control panel |
|
Definition
| behind barrier, show mAs and kVp, audible sound |
|
|
Term
|
Definition
| strong, uniform thickness, floating, radiolucent, carbon fiber |
|
|
Term
| what does the source-to-image receptor distance indicator indicate |
|
Definition
| distance from focal spot to IR (accurate within 2%) |
|
|
Term
| what are the beam limitation devices |
|
Definition
| collimator, aperture diaphragms, cones, cylinders |
|
|
Term
| what are the benefits of beam limitation |
|
Definition
| reduction in patient dose, improve quality of image |
|
|
Term
| what is the benefit of using a grid |
|
Definition
| creating a more diagnostic image |
|
|
Term
|
Definition
| consistency in the output of radiation (variance must be 5% or less) |
|
|
Term
|
Definition
| consistency between mA stations and radiation intensity |
|
|
Term
|
Definition
| can't vary more than 10%, range from 25 to 800 mA |
|
|
Term
| what is the minimum source to skin distance |
|
Definition
| 12 inches for mobile and 15 for stationary |
|
|
Term
| what is the main advantage o digital imaging |
|
Definition
| reduces the rate of re-takes |
|
|
Term
| what type of procedure produces the greatest amount of patient radiation |
|
Definition
|
|
Term
| what helps to reduce exposure during fluoroscopy procedures |
|
Definition
| filtration, SSD(15 in), cumulative timing device, exposure rate limitation, primary protective barrier, control switch (dead man) |
|
|
Term
| what does the half value layer determine |
|
Definition
| whether the beam is adequately filtered |
|
|
Term
| how much filtration is needed |
|
Definition
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