I wrote the Theory of Sound
Lord Rayliegh
Mechanical
Longitudinal
Incorporated in June 1975, is an independent, nonprofit organization that administers examinations and awards credentials in the areas of diagnostic medical sonography.
ARDMS
well defined
posterior acoustic enhancement
I am an instrument that converts one form of energy into another form of energy.
Transducer
I purposed the theory of the effect of motion on pitch.
Christian Johann Doppler
In a longitudinal wave, particles in motion move ________ to the waves.
same direction
parallel!!
formed to assist sonographers with education, job placement and other professional information.
SDMS - Society of Diagnostic Medical Sonographers
Reverberation, multiple space echoes.
Name the types of credentials you will be awarded after sitting for the registries:
1. Abdomen
2. Vascular
3. Echo
4. OB
5. Breast
RDMS (AB) (OB) (BR)
RVT
RDCS
We developed the phenomenon of piezoelectricity.
Jacques and Pierre Curie
The average speed through soft tissue is:
1540 m/s or 1.54
a multidisciplinary association dedicated to advancing the safe and effective use of US in medicine through professional and public education, research, development of guidelines and accreditation.
AIUM- American Institute of Ultrasound in Medicine
Propagation of Speed Artifact
Occurs due to different propagation of speeds amongst structures
Two terms that describe echotexture:
heterogenous
homogenous
I am the "Father of Obstetrical Ultrasound"
Ian Donald
Propagation of speed is determined by:
stiffness and density
In 1974, I created the occupation of DMS and set forth the essentials for minimum education requirements for sonographer training.
AMA- American Medical Association
Attenuation is best defined as:
This decrease in intensity, power and amplitude.
Sonolucent
Echolucent
I implanted gallstones in the gallbladders of dogs and successfully detected them.
George Ludwig
As stiffness increases speed increases.
As density increases speed decreases.
I was formed in 1970. My goal was to promote, advance and educate its members and the medical community in the field of ultrasound. My name is now SDMS.
ASUTS. American Society of Ultrasound.
if something is highly attenuating what artifact will be portrayed posterior to the structure?
if something is a low attenuating structure what artifact will be portrayed posterior to the structure?
a. posterior acoustic shadowing
b. posterior acoustic enhancement
Ultrasound
Audible Sound
Infrasound
Audible Sound 20Hz- 20,000 Hz
Infrasound < 20 Hz