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Labels for molecular imaging
• CT
Dense label
Iodine, Barium
• Ultrasound Echogenic label
Air bubbles
• Optical
Fluorescent label
Luciferine
• (f)MRI
Paramagnetic label
Iron particles
• NM/SPECT Gamma emitters
Tc-99m, In-111, I-123
• PET
Positron emitters
F-18, Ga-68, I-124
US
MRI
Optical
SPECT
PET
Tracer molecule
6