Fig. 2.

Post-therapy planar gamma camera images acquired 5, 24 and 48 h after injection of 6.9 GBq [¹⁷⁷Lu]Lu-PSMA-I&T. Tracer uptake in the primary tumor and metastatic lesions on the 5 h image corresponds to the pre-therapeutic PSMA PET (Fig. 1). Primary tumor (red arrow) and retroperitoneal lymph node metastases (blue arrow). There is very low tumor retention after 24 and almost complete washout after 48 h (Fig. 3). High intestinal uptake (black dotted arrow) is caused by intestinal dilation caused by opioid treatment