403 / 1116
•
Gd
3+
paramagnetic ion
•
Gadolinium chelated to reduce toxicity
•
Shortens T
1
& T
2
•
Greater T
1
effect as tissue T
1
> T
2
Contrast Enhancement
0
0,5
1
0
50
100
150
200
time
T
1
T
1
+C
T1 shortened
in blood
Ck
T T
1
10
1
1 1
+ =