technetium 99m ([99m]Tc)

Introduction

Metastable radioactive isotope of technesium.

Uses

• medical imaging

Pharmacokinetics

• decays with gamma emission to technesium-99
• half-life for gamma emission is 6 hours

Procedure

• identified & quantified with gamma-counter

More general terms

• technetium [Tc]
• radioactive isotope