Physics Part 6

Which of the following could represent a binary number?

A group of 8 bits is called

Which of the following is associated with improper adjustment of the brightness and contrast on the video monitor?

The spatial resolution of the scan converter is determined by:

When you "freeze" the ultrasound image, where is the echo information stored?

The picture elements in a scan converter matrix is termed:

Digital to analog conversions of the ultrasound signal must occur at what part of the imaging process?

Where are images stored in the ultrasound system?

What is the order in which the signal travels in the ultrasound system?

Which of the following adjustments would improve contrast resolution?

Which of the following would improve spatial resolution?

What is the maximum number of shades of gray in an 8-bit digital scan converter?

What three colors are used on a color monitor to produce the range of available colors?

What can you improve by changing the postprocessing gray-scale map?

Answer the question

What system control converts the #s stored in memory to proportional voltages that control the brightness on the monitor

Two separate fields are used to produce an image on a video monitor. The purpose of this is to:

What feature allows the user to freeze and then scroll back through the most recently acquired image frames?

What determines the number of shades of gray an ultrasound system in capable of displaying?

Differentiation between two very similar reflected signal strengths is most closely associated with:

The computer parameter that limits the number of brightness levels available for display of the image matrix is the:

Without interpolation, which of the following would best describe the resultant B-mode image?

Television frames are displayed at a rate of__ frames per second.

Which of the following digital scan converters would demonstrate the best contrast resolution?

In the scan converter, interpolation is performed to:

What number system is employed by computers to carry out mathematical operations and represent numbers?

How many levels of information can a single bit represent?

The ability to distinguish between adjacent structures producing echoes of similar amplitude is termed:

A digital scan converter is another name for what system component?

Analog to digital conversion of the ultrasound signal must occur at what part of the imaging process?

Which of the following is NOT an advantage of using a SVHS video recorder on your ultrasound system?

Which of the following is a cathode ray tube?

A single television frame in commercial broadcasting consists of how many lines?

What system component is responsible for transmit focusing?

What type of resolution is determined by the number of pixels in the event scan converter?

Which of the following describes an analog signal?

Which of the following can be considered an advantage of magneto-optical disk storage?