How long after the administration of Tc-Pertechnetate does imaging begin for the localization of Meckel's Diverticulum?

When performing a nuclear medicine scan for the localization of Meckel's Diverticulum with Tc-Pertechnetate, imaging typically begins immediately after the administration of the radiopharmaceutical. This is due to the rapid uptake and accumulation of Tc-Pertechnetate in the gastric mucosa, which is relevant for identifying ectopic gastric tissue associated with Meckel's Diverticulum.

Tc-Pertechnetate is known to localize in areas of gastric mucosa, and since Meckel's Diverticulum may contain this type of tissue, the imaging must be initiated soon after injection to capture the radiotracer distribution accurately. Imaging is often initiated right away to maximize the visualization of the diverticulum, as delayed imaging may result in diminished contrast and could potentially miss the uptake in cases where ectopic tissue is present.

This timely imaging helps ensure that physicians can effectively differentiate normal anatomical structures from the diverticulum, especially in the early phases post-administration when concentrations of the tracer are at their peak.