Foundation quizzes 5-10

if the boundary of an interface is smooth and larger than the wavelength of the ultrasound it is termed..

the minimum reflector seperation along the sound path required to produce seperate echoes is termed...

non-specular reflectors

where in the imaging field is the lateral resoution the best

the potential for heating the tissue while imaging is displayed as...

the transfer of sound energy through the medium is termed..

frequency of ultrasound is Greater or Less than 20Hz

What has the slowest propagation speed?

the conversion of mechanical energy to electrical energy is also known as...

what is the effect of higher frequencies on attenuation and penetration?

increasing the dynamic range of the pulse-echo ultrasound system...

when a sonographer changes the gain control, what system component is responsible for the adjustment?

Time gain compesation (TGC) adjusts the image brightness to compensate for..

what is a harmonic frequency of 3.5MHz

what type of imaging is displayed on this image?

what adjustments can be made to increase the frame rate of this exam?

an advantage of sequenced linear array transducers is

an advantage of curved array transducers is...

phased array transducers...

a sonographer can increase frame rate by..

what is the scan converter function that deterimines the assignment of echos to predetermined gray scale levels?

a digital picture element is a..

preprocessing functions must be performed...

to magnify the image and improve its resolution the sonographer should use...

when performing a vascular imaging exam you would like thre to be less shades of gray, you should...