CT Imaging Quiz

What is the primary factor that affects image quality in CT scans?

• Patient size

• Radiation dose

• Scanner type

• All of the above

Which of the following best describes spatial resolution in CT imaging?

• The ability to distinguish between two adjacent structures

• The overall brightness of the image

• The amount of radiation used during the scan

• The contrast between different tissues

In CT imaging, what does the term "contrast resolution" refer to?

• The ability to differentiate between similar tissues

• The clarity of the image

• The speed of the scan

• The size of the CT scanner

Which imaging artifact is commonly associated with metal implants in CT scans?

• Ring artifact

• Beam hardening artifact

• Motion artifact

• Partial volume artifact

What is the effect of increasing the slice thickness in CT imaging on image quality?

• Improved spatial resolution

• Decreased spatial resolution

• Increased contrast resolution

• No effect on image quality

Which of the following techniques can improve image quality in CT scans?

• Decreasing the kVp setting

• Increasing the mAs setting

• Reducing the number of slices

• Using a lower quality detector

What does the term "noise" in CT imaging refer to?

• Artifacts caused by patient movement

• Random variations in pixel values that degrade image quality

• The sound of the CT machine during operation

• Changes in tissue contrast

In the context of CT imaging, what does the term "windowing" refer to?

• Adjusting the patient's position

• Modifying the brightness and contrast of the image

• Changing the scan parameters

• Selecting the appropriate scanning protocol

What is the effect of patient motion on CT image quality?

• It enhances the image quality
  

• It can cause blurring and artifacts in the

• It has no effect on the images

• it can cause streak artifacts

From this Graph, which Scanner will be produce better spatial resolution. ?

• Scanner A

• Scanner B