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.