Small-animal SPECT/CT imaging in the insulinoma model.

<p>Small-animal SPECT/CT imaging after the injection of ¹²⁵I-liraglutide into the tail veins of nude mice indicated that the tumour could be clearly imaged at 30 min after this injection (<b>A</b>), with the clearest images of the tumour obtained at 90 min after the injection (<b>B</b>). The tumour had begun to fade by 180 min after the injection (<b>C</b>) and had significantly faded by 360 min after the injection (<b>D</b>). In addition, the thyroid, liver, heart, lung, kidney, bladder, and other organs were visible to various degrees in the imaging results. The CT coronal tomographic images correspond to the SPECT/CT images, and the arrow indicates the tumour location.