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. 2022 Jun 14;24(6):853–861. doi: 10.1007/s11307-022-01746-w

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© The Author(s) 2022

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Fig. 4 — Prostate adenocarcinoma (#6). A Fused FTT-PET/CT (left top row) and CT (right: top, bone window; bottom, soft tissue window) images. There is FTT + sternal metastasis (arrows) with slightly different distribution. Additional FTT + mediastinal lymph nodes are noted. B PARP1 IHC score of 8. C Fused FTT-CT sagittal images of before and 4 months after PARPi therapy (#6 non-responder). The post-therapy image demonstrates the resolution of the sternal lesion (arrow) seen on pre-therapy image and appearance of a new sternal lesion just inferior to the initial lesion (arrow). D Fused FTT-CT sagittal images of before and 4 months after PARPi therapy (#8 responder). The post-therapy image demonstrates near-complete resolution of all spine and sternal metastatic disease. The scale bar on PET images: SUV_max = 5.5