Ch.1 - Recognizing Anything

Question 1

Remember, the denser the object?

Answer 1

The more X-rays it absorbs + the whiter it appears on radiographic images.

Question 2

Radiopaque means?

Answer 2

WHITE.

Question 3

Conventional radiographs - Terms used for “White”?

Answer 3

Increased density, opaque.

Question 4

Conventional radiographs - Terms used for “Black”?

Answer 4

Decreased density, lucent.

Question 5

CT - Terms used for “white”?

Answer 5

Increased (high) attenuation, hyperintense or hyperdense.

Question 6

CT - Terms used for “Black”?

Answer 6

Decreased (low) attenuation, hypodense.

Question 7

MRI - Terms used for “White”?

Answer 7

Increased (high) signal intensity, Bright.

Question 8

MRI - Terms used for “Black”?

Answer 8

Decreased (low) signal intensity, dark.

Question 9

US - Terms used for “White”?

Answer 9

Increased echogenicity, sonodense.

Question 10

US - Terms used for “Black”?

Answer 10

Decreased echogenicity, sonolucent.

Question 11

Nuclear medicine - Terms used for “White”?

Answer 11

Increased tracer uptake.

Question 12

Nuclear medicine - Terms used for “Black”?

Answer 12

Decreased tracer uptake.

Question 13

Barium studies - Terms used for “White”?

Answer 13

Radiopaque.

Question 14

Barium studies - Terms used for “Black”?

Answer 14

Nonopaque, radiolucent.

Question 15

Conventional radiography is limited to demonstrating 5 basic densities:

Answer 15

AIR --> Blackest.
FAT --> Lighter shade of gray than air.
SOFT TISSUE/FLUID.
Ca.
Metal --> Whitest. (Radio contrast media, prosthetic knees or hips.