sped 54 presentation

A Primer of Diagnostic Ultrasonic Imaging


Brought to you byNicole and her dad


Brought to you byNicole and her dad

with special acknowledgment to our expert sonographer Denise Nunes


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


What is 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.


What can be imaged?Soft tissue and fluids.


What can be imaged?Soft tissue and fluids.

What can’t be imaged?Bone and air, e.g. lungs


Why?


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.

A Primer of Diagnostic Ultrasonic ImagingModalities

A-mode, B-mode, 2D imaging


A-mode

Suzanne Amador Kane, Haverford College, “Ultrasound Imaging Physics”


B-mode, 2D imaging

A Primer of Diagnostic Ultrasonic Imaging3D rendering


M-mode, or motion mode


A-mode


M-mode image


Doppler modes


Doppler modes

Source: World Health Organization, “Manual of diagnostic ultrasound”


Doppler modes: Color Flow (CF) Spectral Doppler


Doppler modes Color Flow (CF)


Spectral Doppler


A-mode



Review• A-mode, B-mode (aka 2D imaging)• 3D rendering• M-mode (aka motion mode)• Doppler modes

* Color Flow (CF)* Spectral Doppler

sped 54 presentation

Health & Medicine

diagnostic

ultrasonic

haverford

soft tissue

tissue structures

mode

fluids

imaged