Describe the phenomenon of attenuation in ultrasound imaging and its implications. How does attenuation affect image quality, and what methods are used to compensate for it?

The Doppler effect measures:

Scattering allows:

Harmonics are created because:

What is speckle in sonographic imaging?

Discuss the operating principles of sonography, focusing on the pulse-echo technique and its significance in medical imaging. Explain how the echoes are used to create an image and the importance of echo strength and return time.

Explain the different sonographic imaging formats mentioned in Chapter 1, particularly focusing on the linear, sector, and combination formats. Discuss their applications and how they differ in terms of image production.

Sound is classified as a __________ wave.

Which principle forms the basis of diagnostic sonography imaging?

Which describes the number of pulses per second?