Quiz on Ultrasound and Medical Imaging

What is the frequency range of typical diagnostic ultrasound scanners?

• 100 to 200 megahertz

• 20 to 50 megahertz

• 2 to 18 megahertz

• 1 to 5 megahertz

What is the purpose of the water-based gel used in ultrasound?

• To provide a cushion

• To clean the skin

• To enhance sound wave transmission

• To cool the transducer

What does A-mode ultrasound display?

• A color image of tissues

• A single line of echoes as a function of depth

• A 3D image of the body

• A video of moving organs

Which mode of ultrasound captures a rapid sequence of images?

• B-mode

• A-mode

• M-mode

• C-mode

What type of transducer is typically used in ultrasound imaging?

• Laser transducer

• Piezoelectric transducer

• Magnetic transducer

• Optical transducer

What is the main use of B-mode ultrasound?

• To measure blood flow

• To provide a detailed cross-sectional view of tissues

• To create a 3D image

• To target tumors

What happens to ultrasound waves as they pass through human tissues?

• They become louder

• They travel faster

• They are absorbed and reflected

• They change color

What is the frequency range of ultrasound used in medical diagnostics?

• 1 to 3 megahertz

• 3 to 10 megahertz

• 10 to 20 megahertz

• 20 to 30 megahertz

What is the purpose of the transducer in ultrasound?

• To cool the machine

• To store data

• To display images

• To produce sound waves

What type of images can be generated by using a series of 2D images?

• 4D images

• 2D images only

• Static images

• 3D images