DMU physics final

A linear array transducer creates a _____ image

contrast agents are

shallow imaging has

when frame rate increases, ____ resolution improves

harmonic frequency arises from

low MI has _____ harmonics

high line density improves individual images with images containing more detail. this improves

a damaged crystal array

what is the dynamic range of an ultrasound system that can process voltages ranging from 5 volts to 5000 volts

with linear phased array transducers, ___ crystals are fired to create each sound pulse

high MI causes

fundamental frequency is

affects the number of pulses

dynamic range is measured in

a mechanical transducer has

frame rate is affected by

harmonic frequency is

artifacts created by array transducers are called

frame rate and Tframe are ______________ related

if a transducer transmits a fundamental frequency of 2 MHz the harmonic frequency will be

the main advantage of multiple focal zones is it provides excellent ____ resolution

the amount of contrast harmonics produced can be estimated by a number called ---

slice thickness resolution is also called

an amplifier increases a voltage from 5 to 5000 volts. how many decibels of gain is this?

imaging depth and number of pulses in each picture

what determines the frame rate on an ultrasound machine

what increases temporal resolution

contrast harmonics result from

number of lines per frame and the frame rate determine the

wide sector image will

if a sonographer turns off the multi-focus feature, what would happen?

dynamic aperture is a form of

convex transducers have a blunted ____top

annular arrays

phased arrays typically have _____ crystals

linear switched or sequential arrays