Fig. 2From: Quantitative Iodine-123 single-photon emission computed tomography/computed tomography for Iodine-131 therapy of an autonomously functioning thyroid noduleQuantitative I-123 SPECT/CT. Coronal (upper row) and transaxial (bottom row) SPECT/CT images at 1 h, 4 h, and 24 h post I-123 administration (a). The measured concentration of I-123 (blue) and expected concentration of I-131 (green) for the hot nodule in the left lobe (b) and the contralateral right thyroid lobe (c). RAI radioactive iodine, SPECT single-photon emission computed tomographyBack to article page