Probe
Imaging technique
Air, argon, nitrogen
Ultrasonography
Gd, Mn, Iron oxide, polymers
MRI
11
C,
18
F,
15
O,
PET
11
In,
99
Tc,
67
Ga
Gamma-scintigraphy
I, Br, Ba
CT
Table 2:
Diagnostic imaging probes used in different medical imaging techniques.