Which of the following is considered the most appropriate unique patient identifiers?

A CONTINUOUS WAVE TRANSDUCER has a crystal thickness of 5 mm with a crystal propagation speed of 20 mm/μsec, calculate the operating frequency.

Compared to conventional harmonic imaging, Phase inversion harmonic imaging has a ____________ frame time which causes a degradation in ___________.

Wavelength is determined by the

Calculate the acoustic line time to image a nodule at a depth of 4 cm in the right lobe of the thyroid gland.

Which of the following best describes a sector transducer?

Calculate the frame rate for an ultrasound system with a Frame time of 0.1 seconds.

What action would be most in keeping with the ALARA principle while performing a diagnostic ultrasound exam?

PRF is the reciprocal of which letter in the diagram below.

The overall texture of the normal thyroid tissue, surrounding the mass, is produced by _________ which occurs either when the reflecting surface is smaller than the sound beam wavelength  (giving tissue a characteristic texture) or large and rough compared to the wavelength.