Part 8

Question 1

What is a complex computer technique that reduces the size of digital CT image set?

Answer 1

Image Compression

Question 2

What is the reconstructed data that has been projected back onto a matrix after convolution by an algorithm and displayed on a monitor as a gray-scale CT image?

Answer 2

Image Data

Question 3

What is a technique yielding a 3D model with the perspective of being within the lumen of the object, similar to an endoscopic view?

Answer 3

Immersive Rendering

Question 4

What can also be called perspective volume rendering?

Answer 4

Immersive Rendering

Question 5

What is the introduction of air into an organ or cavity for distention and improved visualization?

Answer 5

Insufflation

Question 6

What is the mathematical process used for helical CT image reconstruction whereby data from tube rotations just above and below a given slice position are used for image reconstruction?

Answer 6

Interpolation

Question 7

What is the center point of gantry rotation?

Answer 7

Isocenter

Question 8

What are processing CT attenuation values equal to the values of the surrounding tissue?

Answer 8

Isodense

Question 9

What does it mean to have equal dimensions along the x-, y-, and z-axes?

In CT, describes voxels with this property?

Answer 9

Isotropic