12 Questions
What is the primary function of fluoroscopy?
To guide surgeons during procedures
What is the main difference between fluoroscopy and general x-ray imaging?
Image receptor
What is the benefit of using digital fluoroscopy over image intensified fluoroscopy?
Provides real-time dynamic imaging
What is the purpose of the scintillation layer in an image intensifier tube?
To convert x-rays to visible light
Why did Thomas Edison stop researching fluoroscopy?
Due to the death of his assistant from skin cancer
What is the typical frame rate of fluoroscopy?
30 frames per second
What is the primary function of the scintillation layer in an image intensifier tube?
To convert X-ray energy into visible light
What is the main advantage of using a flat panel detector in fluoroscopy?
Real-time imaging capability
What is the typical range of frame rates in fluoroscopy?
Over 30 frames per second
What is the primary difference between mobile and fixed fluoroscopy systems?
Mobility of the X-ray source
What is the purpose of the image intensifier tube in fluoroscopy?
To convert the X-ray image into visible light
What is the typical range of kVp used in fluoroscopy, depending on the body region?
50-100 kVp
Study Notes
Fluoroscopy
- Dynamic, real-time imaging technique used in operating theatres to guide surgeons in placement
- Provides continuous image of motion, with frame rate over 30 frames per second
- Capable of capturing static images (spot film) in 2D
Varieties of Fluoroscopy
- Mobile source and fixed set-ups, including interventional suite areas
- Image receptor can be placed over or under the table
History of Fluoroscopy
- Created by Thomas Edison, but he stopped research after his assistant died from metastatic skin cancer due to radiation exposure
Benefits of Fluoroscopy
- Provides images of continuous nature, enabling real-time dynamic imaging and screening
Physical Principles of Operation
- X-ray source: same as general x-ray tube
- Image receptor: different from x-ray, can be flat-panel detector or image intensifier tube
- Image intensifier tube:
- Complex electronic device
- Converts image to higher intensity and brightness
- Creates light of higher intensity and brightness
- Encased in glass with a scintillation layer
Exposure Parameters
- kVp (x-ray energy) depends on body region
- Tube current is typically low
Fluoroscopy
- Dynamic, real-time imaging technique used in operating theatres to guide surgeons in placement
- Provides continuous image of motion, with frame rate over 30 frames per second
- Capable of capturing static images (spot film) in 2D
Varieties of Fluoroscopy
- Mobile source and fixed set-ups, including interventional suite areas
- Image receptor can be placed over or under the table
History of Fluoroscopy
- Created by Thomas Edison, but he stopped research after his assistant died from metastatic skin cancer due to radiation exposure
Benefits of Fluoroscopy
- Provides images of continuous nature, enabling real-time dynamic imaging and screening
Physical Principles of Operation
- X-ray source: same as general x-ray tube
- Image receptor: different from x-ray, can be flat-panel detector or image intensifier tube
- Image intensifier tube:
- Complex electronic device
- Converts image to higher intensity and brightness
- Creates light of higher intensity and brightness
- Encased in glass with a scintillation layer
Exposure Parameters
- kVp (x-ray energy) depends on body region
- Tube current is typically low
This quiz covers the definition and primary function of fluoroscopy, its applications in operating theatres, and its capability for dynamic, real-time imaging. It also explores the various types of fluoroscopy, including mobile sources.
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