10 Questions
What is the main advantage of mobile x-ray equipment compared to portable x-ray equipment?
Greater stability
Which component is NOT a part of the basic components of mobile radiography equipment?
Battery Pack
What is a significant disadvantage of portable x-ray equipment?
Lack of power
Which type of radiography equipment has a wider range of exposure values?
Mobile x-ray equipment
What is one key advantage of portable x-ray equipment over mobile x-ray equipment?
Lower Cost
Which setting would NOT typically require the use of mobile radiographic equipment?
Daycare Centers
What is a common disadvantage of mobile x-ray equipment?
Heavy
Which type of radiography equipment has a lack of precision as one of its disadvantages?
Portable x-ray equipment
What is a distinct difference between mobile and portable radiography based on the information provided?
Range of movements
Which component is NOT typically found in portable radiography equipment?
Wheeled Base
Study Notes
Mobile Radiographic Equipment
- Mobile radiography: equipment for radiography and fluoroscopy that can be moved to a specific location
- Exclusions: portable radiography, which is packed and carried to a destination
Portable X-ray Equipment
- Advantages: easy transport, high mobility
- Disadvantages: lack of power, lack of stability, lack of precision
Mobile X-ray Equipment
- Advantages: greater stability, increased power (wider range of exposure values)
- Disadvantages: heavy, more costly
Why Mobile Radiographic Equipment is Needed
- Ward radiography
- Emergency rooms
- Operating theatres
- Out in the field
Basic Components
- Stand with generator
- Control panel
- X-ray tube
- Wheeled base (optional for portable)
Mobile vs Portable
- Mobile: equipment with wheels, can be moved to a specific location
- Portable: equipment that can be packed and carried to a destination
Capacitor Discharge
- Guideline: Department Exposure = 80kVp, 4mAs
- Equivalent exposure using capacitor discharge = 80 + (1/3 x 4mAs) = 81kVp
- Start exposure at 81kVp with an end exposure of 77kVp
Battery Operated Systems
- Uses a bank of batteries built into the system
- Provides power for exposure drive unit
- Advantages: mains independent, consistent and reliable exposure output
- Disadvantages: more expensive, requires recharging of batteries, more careful maintenance
Considerations When Using Mobile
- Movement: Pt/IR/CR alignment, exposure factors
- SID: increased possibility of artefacts (pins, clips, lines)
- Radiation protection
- SID must be between 15% of SID range for exposures to still work
- Outside of 15%, exposure adjustments must be made
This quiz covers guidelines for using a capacitor discharge in radiography equipment and the advantages of battery-operated systems. Topics include the equivalent exposure using a capacitor discharge and the benefits of mains-independent power sources.
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