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. 2020 Nov;10(11):2098–2111. doi: 10.21037/qims-20-607

Figure 3.

Figure 3

Bone scintigraphy (A) and transaxial PET (B) and fused PET/CT (C) from the early-phase scan and transaxial PET (D) and fused PET/CT (E) from the conventional scan in F-18 NaF PET/CT of a 47-year-old woman with breast cancer. On surveillance bone scintigraphy after right mastectomy, focally increased radiotracer uptake is newly observed in the T7 spine (arrow in A). On bone-phase scan images, focal intensely increased radiotracer uptake is shown in the right transverse process of T7 spine (arrows on D and E), but only minimal radiotracer uptake was shown on early-phase scan images (arrows on B and C) with a lesion-to-blood pool uptake ratio of 0.29. On follow-up imaging studies, the bone lesion was clinically diagnosed as nonmetastatic bone lesion. PET/CT, positron emission tomography/computed tomography.