Exam 16: Computed Tomography

DAS stands for

The midpoint of the range of CT numbers to be displayed in the image is the

Using a lower mA increases

The individual credited with inventing the CT scanner is

Pediatric protocols are unnecessary because the equipment will always adjust for the smaller patient size.

Which of the following statements is true regarding CT imaging?

Slices of anatomy that are reformatted to go from front to back are

The CT number is the same as an attenuation coefficient

For CT,the filter placed between the tube and patient is shaped like a

The collimator that controls how much of the detector is exposed is the

With multislice CT,additional rows of detectors are added along the

Logarithmic conversion produces the linear attenuation coefficient data.

Filtered back projection uses the bowtie filter to reconstruct the CT image.

An image with a WW of 600 and a WL of -300 produces an image that displays pixels with CT numbers ranging from

As the WW changes,the CT image's

This specific area of the image is often selected to perform data analysis