In: Nursing
1. If T2 for gray matter is 100 msec at 1.5 T, it’s value for 3 T is most likely:
a) 50
b) 70
c) 100
d) 140
e) 200
2.If transverse magnetization is Mxy the free induction decay signal is proportional to:
a) (Mxy)-1
b) (Mxy)-0.5
c) (Mxy)0.5
d) (Mxy)1
e) Independent of Mxy
1. If T2 for gray matter is 100 msec at 1.5 T, it’s value for 3 T is most likely:
Ans : If 1.5 T = 100
Then 3 T = 200
So answer is E ) 200.
2. If transverse magnetization is Mxy the free induction decay signal is proportional to:
Ans : d) Independent of Mxy