Medical Imaging: CT Scanning

What is the main function of a CT scanner?

• To generate ultrasound waves

• To visualize soft tissues using sound waves

• To create cross-sectional images using magnetic fields

• To produce detailed cross-sectional images using X-rays and computer processing

Who were the pioneers credited with developing CT scanning technology?

• Wilhelm Roentgen and James Watson

• Paul Lauterbur and Raymond Damadian

• Sir Godfrey Hounsfield and Allan Cormack

• Isaac Newton and Marie Curie

When was the first clinical use of a CT scanner?

• 1955

• 1965

• 1971

• 1981

What component of a CT scanner emits X-rays?

• Detector array

• Gantry

• X-ray tube

• Slip ring

What type of radiation does a CT scanner use?

• Infrared radiation

• Ionizing radiation

• Ultraviolet radiation

• Microwave radiation

What is the function of the gantry in a CT scanner?

• To store and archive patient data

• To align patient position manually

• To house the rotating parts like the X-ray tube and detectors

• To regulate room temperature

What is the purpose of the slip ring in a CT scanner?

• It produces X-rays

• It houses the computer processor

• It enables continuous rotation of the gantry

• It stores scanned images

The X-ray tube's anode is typically made of which material?

• Copper

• Lead

• Tungsten

• Steel

What type of radiation is produced when electrons decelerate at the anode?

• Alpha radiation

• Gamma radiation

• Bremsstrahlung radiation

• Neutron radiation

What role do collimators play in CT imaging?

• Amplify signals from detectors

• Control patient breathing

• Shape and limit the X-ray beam

• Move the patient table