OCCRAD114CTReview

To determine density value of structure, place a _______ on the structure for a measurement. 

What converts information into a binary number for the computer?

CT generation was first for 360 degrees of data and develop a ring artifact if detector failed?

CT generation used 180 degrees of data with fan beam in one direction and thin beam in other?

Which computer generation used  vacuum tubes?

Which type of reconstruction shows types of tissue layers?

Which of the following components are NOT part of the gantry?

Math used to transfer detector data from spatial location domain to spatial frequency domain? 

What determines the slice thickness?

What is the value of water?

Which type of reconstruction shows low intensity values only?

Binary digits can be what values?

Which stores data as discrete points and created by a computer?

Which computer generation was first to use computer chips?

If your window level is 40 and your window width is 300 what values will be Black?

What algorithm is used to for a fractured skull?

What is the term for the exact location for information?

Which portion of the computer connects the input and output devices to the CPU?

What type of memory device stores only sequentially?

Which portion of the CPU performs instructions for processed data?

Which type of reconstruction shows high intensity values only?

What is the window level? 

A structure that has a very high positive Hounsfield unit will appear?

Which portion of the CPU performs logic and math functions?

Takes electrical signal from CT detectors and converts to digital form for computer. 

In what plane are CT images created?

If your window level is 40 and your window width is 300 what values will be gray? 

What number is 110011001?

What modality was the first large scale application of computers?

Which CT generation was a translate-rotate with 180 degrees of data and a fan beam?

Which computer generation was first to use integrated circuits?

Which computer generation was first to use DVD's for storage?

Which of the following is partial volume effect?

Convert the following number to binary: 732

Which algorithm has a high edge enhancement?

Measuring differences in attenuation of beam between prepatient and post patient detector.

Which of the following will cause an increase in resolution?

What is another name for CT number?

What is an algorithm?

Reconstruction process,which is applied first, convolution (algorithm) or back projection?

What CT examination uses oral contrast?

What causes misregistration?

What is the window width?

Hounsfield units are based on the density value of what? 

A structure that has a very low negative Hounsfield unit will appear?

Which CT generation used a pencil thin beam and only 1-2 detectors?

Which of the following will cause an increase in resolution?

What is a region of interest (ROI)?

What is equal to the pixels x pixels?

Which of the following is 3 dimensional?

What is the name for a filter that is used to convert data received by detectors?

Which of the following will cause an increase in resolution?

What is loading when you turn on your computer?

Which generation used a stationary set of detectors with a rotating tube 360 degrees?

What is equal to pixels x pixels x slice thickness?

What type of filter is used in CT?

How many shades of gray can the human eye detect?

What type of CT tube using a dual focal spot called a Z spot?

What is NOT the purpose of using a high frequency generator in CT?

How is the window level determined?

What type of CT detector utilizes gas chambers?

What controls the speed of a computer system?

Which of the following is/are NOT software?

What type of CT detector utilizes NP junctions?

Which type of information is needed for the computer to "fix" data?

What is the name for AEC in CT?

If your window level is 40 and your window width is 300 what values will be White?

Which computer generation was first to use transistors?

When a blood vessel must be imaged, what type of contrast is needed?

What unit of the computer stores information?

When typing a paper, are you working in ROM or RAM?

A watch with a second hand or an x-ray film are examples of analog or digital?

Which of the following is/are NOT hardware?