Chapter 1 - Introduction To Medical Imaging

Question 1

The different modes of making images

Answer 1

Modalities

Question 2

Refers to imaging in which the energy source is outside the body on one side, and the energy passes through the body and is detected on the other side of the body

Answer 2

Transmission imaging

Question 3

When each point in the image corresponds to information along a straight-line trajectory through the patient

Answer 3

Projection imaging

Question 4

Refers to a picture (graph) of a slice (tomo)

Answer 4

Tomography

Question 5

A single voxel or multiple voxels may be analyzed using specialized MRI sequences to evaluate the biochemical composition of tissues in a precisely defined volume

Answer 5

MR Spectroscopy

Question 6

Tissue density x speed of sound in tissue

Answer 6

Acoustic impedance

Question 7

Refers to the ability to see small detail

Answer 7

Spatial resolution

Question 8

If an imaging system can demonstrate the presence of smaller object in the image

Answer 8

Higher spatial resolution

Question 9

The size of the smallest object that an imaging system can resolve

Answer 9

Limiting spatial resolution