Voltage pulses from the pulser go to the

Gain compensation is necessary due to

Which of the following choices is best when the image on your US display reflectors only in a region far from the transducers but no reflectors in a region close to the transducer?

Which of the following would have the deepest delay on TGC curve

What is a primary advantage of multiple focal zones along each scan line of two dimensional image?

With sector, scanning images with greater detail, spatial resolution are created when the number of acoustic pulses per degree of sector is increased

What does the far gain of a depth gain compensation curve represent?

What is a number of binary digits required to store 29 levels of gray

A sonographer reduces the sector size from 90° to 30° frame rate, however did not change what else happened?

What nonlinear behavior creates tissue harmonics

A byte is composed of _____ bits. A word is composed of ____bytes.

Why is it necessary for the receiver to perform compressions on the electrical signals that is processed?

What image is created with a two dimensional array transducer

When using an instruments, typical of today’s imaging devices, a higher frequency transducer is likely to mildly improve the systems lateral resolution

The dimension perpendicular to the scan plane is called____

Which of the following is defined as changing the time of the shocking of the elements in order to shape and steer the beam

The curved pattern of delays in the electrical spikes used in a linear phase. Ray transducer focuses the beams during reception.

One way that a sonographer can alter. The actual resolution achieved during an exam is to adjust The maximum imaging depth

What frequency transducer will have the best range resolution

When using an instrument, typical of today’s imaging devices, a higher frequency transducer is likely mildly improved the systems lateral resolution

With a mechanical transducer, the ultrasound beam is directed in many different directions to create an imaging plane

Which of the following studies would typically be performed with a curved sequential array Transducer!

Which receiver function create an image of comparable brightness from top to bottom

Why is it necessary for analog-to-digital conversion to occur prior to the signal reaching the scan converter?

Which of the following functions will result in increase in the signal strength of the received beam

The output of an ultrasound pulser determines the ___of the acoustic pulse

A digital representation of a number can achieve only specific values

An increase in the amplitude of the transmitted voltage will result in ____?

As the sound beam travels, it is attenuation. This explains the needs to have which receiver function.

Which of the following task is not performed by the receiver of an ultrasound system

A sonographer reduces the sector size from 90° to 30° frame rate, however did not change what else happened

All the following are requirements of contrast agents except

Which of the following is associated with pulse inversion imaging?

The transducer has an impedance ____ times that of the tissue

Shortening the pulses in diagnostic ultrasound Bordens the____

How is the piezoelectric property instilled in a man-made crystal material?

With a 1 D linear array, where is the dimension of the sound beam in the out of plane dimension the narrowest

The ultrasound system in your lab has a transducer with a small footprint. This kind of transducer has the following disadvantages.

You are using a linear array transducer with 4 transmitted focal zones. how many pulses are required on each scan line to create the image?

A sonographer adjust an ultrasound scan to double depth of view from 5 cm to 10 cm if the frame rate remains the same, which one of the following also occurs

A sonographer adjust an ultrasound scan to double the depth of you from 5 cm to rate an imaging depth are inversely 10 cm what happens to the frame rate

Which of the following will improve temporal resolution?

A sonographer adjust the sector size from 45° to 90°. If nothing else is changed what happens to the frame rate

What is the process of adjusting for path length related attenuation called?

Which of the following is associated with highest mechanical index?

Which display is limited to a Single pair of brightness or displayed levels

Which two factors determine temporal resolution

What happens to an image when the number of bits allocated to each pixel increase?

Which resolution relate more directly to the transducer

Factors determining axle resolution are the

Arrays have additional beams resulting from their multi element structure called

A technique that averages out the frequencies used to make the image to improve Contrast resolution and reduce speckle is

Which of the following actions will improve the signal to Noise ratio

The smallest component of a 3-D image is the

Which of the following is a standard for data exchange among imaging systems

Which of the following is associated with uniform brightness?

The ____is where the filtering detection and compression are done

Which of the following would have the shallowest delay on the TGC curve?

What is the rationale for the ALARA principle

What is a primary advantage of multiple focal zones along each scan line of two dimensional image

Under certain conditions and ultrasound system create each image in 0.01 second what is the frame rate?

The length of the pulse does not directly influence the temporal resolution

What is the primary advantage of multiple focal zones along each scanline of a two dimensional image?

What nonlinear behavior creates tissue harmonics

The PCT crystal in the shape of a disk produces a continuous ultrasound wave. The beam is unfocused. The far zone is the only region where the beam dimer exceeds the transducer Diana matter.

All the following reduced temporal resolution by increasing the number of pulses per image except

What is the typical voltage of the signal That is the input to the receiver of an ultrasound system

What is the shape of the footprint produced by a curved sequential array transducer

If the crystal diameter is 4 mm what is the minimum distance perpendicular to the transducer that two objects need to be defined as two separate reflectors on the image?

What is the main disadvantage of continuous wave (Pedof) transducer?

The part of the receiver that reduces low level system noise is the

What receiver function converts a negative portion of the signal to positive

An advantage of coded excitation is improved

What is the process of adjusting path length related attenuation called?

Which of the following functions will result in increase in the signal strength of the receive beAm

A sonographer can make an image of uniform brightness by adjusting both alpha power and receiver gain

True or false the signal-to-noise ratio remains unchanged when a sonographer adjust receiver game

Which of the following task is incorporated in the process of demodulation

What is the purpose of the radio frequency shield that is placed around the crystal and backing material of the ultrasound probe

Axial resolution is chiefly determined by