Mammography unit

What is the typical kilovoltage range used in mammography to enhance soft tissue contrast?

• 40-60Kvp

• 25–40 kVp

• 70-90kvp

• 10-20kvp

Who introduced the concept of breast compression to improve mammographic image quality?

• Albert Salomon

• Robert Egan

• Raul Leborgne

• Otto Kleinschmidt

What is the main function of the compression paddle in mammography?

• Reduces skin dose

• Filters high-energy X-rays

• Reduces breast thickness and motion blur

• Increases scatter radiation

Which material is commonly used for the anode in mammography X-ray tubes?

• Tungsten

• Molybdenum or Rhodium

• Copper

• Aluminum

What is the purpose of using a grid in mammography?

• Increase radiation dose

• Decrease focal spot size

• Reduce scatter radiation and improve contrast

• Reduce exposure time

What is the typical focal spot size used in high-resolution mammographic imaging?

• 1.0 mm

• 1.0 mm

• 0.4 mm

• 0.1 mm

Which target/filter combination is best suited for imaging dense breasts in mammography?

• Mo/Mo

• Mo/Rh

• Rh/Rh

• W/Al

What is the purpose of the Heel Effect in mammography?

• Reduce scatter radiation

• Increase tube current

• Optimize beam intensity from chest wall to nipple

• Filter low-energy photons

Which system in mammography automatically adjusts the exposure based on breast density and thickness?

• Grid system

• HVL system

• Compression paddle

• AEC (Automatic Exposure Control)

What type of film is used in screen-film mammography systems?

• Double emulsion

• Single emulsion with single intensifying screen

• Tabular grain film

• Blue-sensitive film