Module 2 (USG And MRI)

Question 1

What principle is USG based on

Answer 1

Piezoelectric effect

Question 2

What is USG transducer made of?

Answer 2

Lead zirconate titanate

Question 3

What is unit of MRI

Answer 3

Tesla

Question 4

Contrast media used in MRI

Answer 4

Gadolinium

Question 5

Shielding in MRI rooms is using?

Answer 5

Copper (faraday cage)

Question 6

Full form of BOLD, TOF, DT, DW types of mri

Answer 6

Blood oxygen level dependent for stroke MRI
Time of flight for angiography MRI
Diffusion tensor for tracts of brain
Diffusion weighted for Brownian motion I.e dead tissues