Ultrasonic imaging uses high frequency sound waves to image soft tissue and fluids in the body. It can be used to diagnose diseases and abnormalities. There are several modalities including A-mode, which displays a spike for each echo; B-mode/2D imaging which forms gray scale images; 3D rendering to view structures in three dimensions; M-mode to view motion over time; and Doppler modes like color flow Doppler to image blood flow and direction, and spectral Doppler to analyze flow velocities.

1. A Primer of Diagnostic Ultrasonic Imaging

2. A Primer of Diagnostic Ultrasonic Imaging
Brought to you by
Nicole and her dad

3. A Primer of Diagnostic Ultrasonic Imaging
Brought to you by
Nicole and her dad
with special acknowledgment to our
expert sonographer Denise Nunes

4. A Primer of Diagnostic Ultrasonic Imaging
Outline of Topics Covered
 What is ultrasonic imaging, what can be
imaged and why?
 Modalities
• A-mode, B-mode, 2D imaging
• 3D rendering
• M-mode
• Doppler modes
* Color Flow (CF)
* Spectral Doppler

5. A Primer of Diagnostic Ultrasonic Imaging
What is ultrasonic imaging?
.

6. A Primer of Diagnostic Ultrasonic Imaging
What is ultrasonic imaging?
Ultrasonic imaging is the transmission of very high
frequent inaudible sound waves into the body by an
ultrasonic transducer, then receiving echo information for
tissue structures with the same transducer. The echo
information is then electronically processed to form a
viewable image of the tissue structures. This is very
similar to to the sonar process used in the Navy for
finding underwater objects.

7. A Primer of Diagnostic Ultrasonic Imaging
What can be imaged?
Soft tissue and fluids.

8. A Primer of Diagnostic Ultrasonic Imaging
What can be imaged?
Soft tissue and fluids
.
What can’t be imaged?
Bone and air, e.g. lungs

9. A Primer of Diagnostic Ultrasonic Imaging
Why?

10. A Primer of Diagnostic Ultrasonic Imaging
Why?
Diagnostic ultrasonic imaging is used by
doctors to view internal body structures
for the diagnosis of diseases, abnormality
of structures, and even blood flow.

11. A Primer of Diagnostic Ultrasonic Imaging
Modalities
A-mode, B-mode, 2D imaging

12. A Primer of Diagnostic Ultrasonic Imaging
Modalities
A-mode
Suzanne Amador Kane, Haverford College, “Ultrasound Imaging Physics”

13. A Primer of Diagnostic Ultrasonic Imaging
Modalities
B-mode, 2D imaging

19. A Primer of Diagnostic Ultrasonic Imaging
3D rendering

21. A Primer of Diagnostic Ultrasonic Imaging
Modalities
M-mode, or motion mode

22. A Primer of Diagnostic Ultrasonic Imaging
Modalities
A-mode
Suzanne Amador Kane, Haverford College, “Ultrasound Imaging Physics”

23. M-mode image

24. A Primer of Diagnostic Ultrasonic Imaging
Modalities
Doppler modes

25. A Primer of Diagnostic Ultrasonic Imaging
Modalities
Doppler modes
Source: World Health Organization, “Manual of diagnostic ultrasound”

26. A Primer of Diagnostic Ultrasonic Imaging
Modalities
Doppler modes:
Color Flow (CF)
Spectral Doppler

27. A Primer of Diagnostic Ultrasonic Imaging
Modalities
Doppler modes
Color Flow (CF)

32. A Primer of Diagnostic Ultrasonic Imaging
Modalities
Spectral Doppler

33. A Primer of Diagnostic Ultrasonic Imaging
Modalities
A-mode
Suzanne Amador Kane, Haverford College, “Ultrasound Imaging Physics”

36. A Primer of Diagnostic Ultrasonic Imaging
Review
• A-mode, B-mode (aka 2D imaging)
• 3D rendering
• M-mode (aka motion mode)
• Doppler modes
* Color Flow (CF)
* Spectral Doppler