Which of these biological tissues will sound waves propogate most quickly?
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The duty factor of continuous wave ultrasound is ___________…
The duty factor of continuous wave ultrasound is ____________.
A 15 MHz transducer has a longer wavelength than a 5 MHz.
A 15 MHz transducer has a longer wavelength than a 5 MHz.
The speed of sound in soft tissue:
The speed of sound in soft tissue:
If the power in a beam is 10 watts and the area is 50cm2, wh…
If the power in a beam is 10 watts and the area is 50cm2, what is the beam’s intensity?
If the wavelength is 2 mm, the spatial pulse length for a th…
If the wavelength is 2 mm, the spatial pulse length for a three cycle pulse is____________.
When you change the depth from 10 cm to 20 cm, the spatial p…
When you change the depth from 10 cm to 20 cm, the spatial pulse length increases..
The duty factor increases when imaging at shallow depths.
The duty factor increases when imaging at shallow depths.
When using the same machine and transducer, which of the fol…
When using the same machine and transducer, which of the following cannot be altered by the sonographer?
When you change the frequency of a transducer from 5 MHz to…
When you change the frequency of a transducer from 5 MHz to 10 MHz, the spatial pulse length is shortened.