Medical Imaging Lecture 2_MRI, PEt, and ultrasound

Question 1

What color is CSF in a T1 weighted MRI image?

Answer 1

Black

Question 2

What color is white matter in a T1 weighted MRI image?

Answer 2

Whiteish (it is lighter than gray matter

Question 3

What color is gray matter in a T1 weighted MRI image?

Answer 3

darker than white matter

Question 4

What color is CSF in a T2 weighted MRI image?

Answer 4

White

Question 5

What color is white matter in a T2 weighted MRI image?

Answer 5

Dark

Question 6

What color is gray matter is a T2 weighted MRI image?

Answer 6

lighter than white matter

Question 7

What is unique about a FLAIR MRI image

Answer 7

It is a T2 weighted image where the CSF has been colored black

Question 8

What is diffusion weighted imaging

Answer 8

it is a MRI imaging sequence that is the most sensitive for detecting strokes

Question 9

Anechoic

Answer 9

Ultrasound term indicating no echo (appears as a black on ultrasound)

Question 10

Hypoechoic

Answer 10

Ultrasound term indicating reduced echo compared to surrounding tissue (appears dark on unltrasound)

Question 11

Isochoic

Answer 11

Ultrasound term indicating that all tissue has the same level of echo (appears uniform on ultrasound)

Question 12

Hyperchoic

Answer 12

Ultrasound term indicating increased echo compared to surrounding tissue (appears white on ultrasound)

Question 13

Which is darker on an xray, fat or soft tissue?

Answer 13

fat