The Decay Correction (0054,1102) is the real-world event to which images in this Series were decay corrected. If decay correction is applied, all images in the Series shall be decay corrected to the same time. The Defined Terms and definitions are:
NONE = no decay correction START= acquisition start time, Acquisition Time (0008,0032) ADMIN = radiopharmaceutical administration time, Radiopharmaceutical Start Time (0018,1072)
The time to which images have been decay corrected can be derived from Decay Factor (0054,1321), Frame Reference Time (0054,1300), Radionuclide Half Life (0018,1075), Series Date (0008,0021), and Series Time (0008,0031).