Special Procedures of Soft Tissue

Question 1

Before using contrast for enhancement of soft tissues, a ___________ ___________ is taken for possible diagnosis and to determine if contrast is needed.

Answer 1

Survey radiograph

Question 2

Many soft tissues like the abdominal organs and the spinal cord have the same density as _____________

Answer 2

Water

Question 3

Contrast media can increase the visualization of tissues with…..

Answer 3

Minimal density differences

Question 4

Contrast media can increase the visualization of what three aspects of a soft tissue structure

Answer 4

1. Size
2. Shape
3. Position

Question 5

Contrast media can increase visualization of contents and surfaces of ___________ type structures

Answer 5

Lumen (bladder)

Question 6

There are positive and negative contrast agents. Positive contrast agents are __________ and appear ___________ to __________ on a radiograph

Answer 6

Radiopaque
grey to white

Question 7

What qualities of a positive contrast agent causes them to be radiopaque with a grey to white color

Answer 7

Increased atomic number resulting in increased x ray absorption

Question 8

What are two positive contrast agents

Answer 8

Barium and iodine agents

Question 9

Negative contrast agents are __________ and appear _____________ on a radiograph

Answer 9

Radiolucent
Black

Question 10

What qualities of a negative contrast agent makes it radiolucent resulting in black on an x ray

Answer 10

They are gasses with low densities/ SG