Table 1 Patient and imaging characteristics of 15 men with indeterminate [⁶⁸Ga]Ga-PSMA-11 PET/CT

Age [yr]

 Median (min.–max.)

71 (59–77)

PSA [ng/mL]

 Median (min.–max.)

0.70 (0.10–10.2)

PSA doubling time category, % (n)

 <3 mo.

33% (5)

 3–6 mo.

33% (5)

 7–12 mo.

13% (2)

 >12 mo.

20% (3)

Gleason Score category, % (n)

 6

7% (1)

 7a

13% (2)

 7b

20% (3)

 8

27% (4)

 9

33% (5)

Primary treatment, % (n)

 Prostatectomy alone

40% (6)

 Prostatectomy + lymphadenectomy

47% (7)

 Radiation therapy

13% (2)

Additional treatments before study imaging, % (n)

 Radiation therapy

20% (3)

 ADT

20% (3)

Number of indeterminate lesions on [⁶⁸Ga]Ga-PSMA-11 PET/CT

 Total

20

 Median (min.–max.) per patient

1 (1–3)

 Percentage (number) of patients with multiple indeterminate lesions

27% (4)

Sites(s) of indeterminate lesions on [⁶⁸Ga]Ga-PSMA-11 PET/CT, % (n)

 Local

20% (4)

 Lymph node

40% (8)

 Bone

40% (8)