Overview
Thyroid scintigraphy uses iodine or technetium tracers to assess uptake patterns and functional status of nodules and gland.
Preparation and Tracer Selection
Consider recent iodine exposure and medication effects; choose tracer and timing based on diagnostic question.
Acquisition and Quantification
Planar and SPECT imaging with uptake quantification and correlation with ultrasound for nodule characterization.
Clinical Use Cases
Useful for hyperthyroidism evaluation toxic nodules and preoperative functional mapping.