5 Questions
What is the recommended kV range for radiography of the lower limbs?
50-70
What is the recommended size of the cassette for AP foot (dorso-plantar projection) during X-ray imaging?
(24 × 30 cm)
For anatomy measuring greater than 10 cm in thickness, what is recommended to be used during lower limb radiography?
Grids
What is the preferred collimation method if the study allows it during lower limb radiography?
Four-sided collimation
During X-ray imaging of the foot, when is a grid not used?
AP Foot (Dorso-plantar projection)
Study Notes
Radiography of the Lower Limbs
- The recommended kV range for radiography of the lower limbs is not specified, but it varies depending on the anatomy being imaged.
Cassette Size for AP Foot (Dorso-Plantar Projection)
- The recommended size of the cassette for AP foot (dorso-plantar projection) during X-ray imaging is not specified, but typically ranges from 18 x 24 cm to 24 x 30 cm.
Measuring Anatomy Greater than 10 cm in Thickness
- For anatomy measuring greater than 10 cm in thickness, a high plus screen or a computed radiography (CR) system is recommended to be used during lower limb radiography.
Collimation Method
- The preferred collimation method, if the study allows it, is to use a collimator to reduce scatter radiation and improve image quality during lower limb radiography.
Grid Use in X-ray Imaging of the Foot
- A grid is not used during X-ray imaging of the foot when the part being imaged is small, such as toes, or when a non-grid technique is specified.
Test your knowledge of lower limb radiography techniques and exposure factors with this quiz. Learn about the principal exposure factors for radiography of the lower limbs including kV, exposure time, focal spot size, mAs, and the use of grids and multiple exposures per imaging plate. Perfect for radiology professionals and students.
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