Table 1.

Characteristics of the patients investigated in the study

Patient number	Age	PSA	Gleason score	Previous therapy	Other metastases	Therapy change after imaging	SUVaverage	SUVmax	Slope	Intercept
1	72	1.86	8	Radical prostatectomy and radiation therapy	Yes (bone)	Yes (radiation therapy and androgen deprivation therapy)	6.2	7.5	Positive	Positive
2	76	2.35	6	Radical prostatectomy and radiation therapy	No	Yes (Salvage-HIFU)	4.6	4.7	Positive	Positive
3	70	0.27	7	Radical prostatectomy and lymphadenectomy	Yes (lymph nodes)	Yes (Salvage radiation therapy to the prostatic fossa and pelvic nodes)	45.8	50.9	Positive	Positive
4	57	1.98	Unknown	Radical prostatectomy	No	Yes (8 months later radiation therapy by persistent PSA increase; no other imaging after 68Ga-PSMA PET/CT)	10.7	12.3	Positive	Positive
5	72	2.00	9	HDR brachytherapy	Yes (lymph nodes)	Yes (TURP after 6 months; no other imaging after 68Ga-PSMA PET/CT)	6.4	7.4	Positive	Positive
6	77	19.90	7	HIFU	Yes (lymph nodes, bone)	Yes (androgen deprivation therapy)	5.2	5.5	Positive	Positive
7	67	6.77	8	Radiation therapy	No	No	7.9	10.2	Positive	Positive
8	59	7.18	Unknown	Radiation therapy	No	No	3.1	3.3	Positive	Positive
9	69	1.20	9	Radiation therapy	No	Yes (Salvage-HIFU)	29.8	37.6	Positive	Positive
10	64	3.40	7	Radiation therapy	No	Yes (Salvage-HIFU)	12.7	13.1	Positive	Positive
11	60	Unknown	Unknown	Radical prostatectomy	Local recurrence is static PET/CT-negative and MRI-positive. No other lesions	Yes (Salvage radiation therapy)	n.a.	n.a.	Negative	Negative
12	68	4.17	Unknown	Radical prostatectomy and HIFU	No	Yes (HIFU)	26.5	29.0	Positive	Positive
13	69	11.66	7	Radical prostatectomy	Yes (lymph nodes)	Yes (androgen deprivation therapy after 9 months; no other imaging after 68Ga-PSMA PET/CT)	14.5	27.2	Positive	Positive
14	73	4.60	7	Radical prostatectomy	Local recurrence is static PET/CT-negative and MRI-positive. No other lesions	Yes (androgen deprivation therapy; radiation therapy recommended, but declined from the patient)	n.a.	n.a.	Negative	Negative
15	78	2.02	9	Radical prostatectomy	Local recurrence is static PET/CT-negative and MRI-positive. Lymph nodes and bone metastases	Yes (androgen deprivation therapy)	n.a.	n.a.	Negative	Negative
16	71	0.18	10	Radical prostatectomy and lymphadenectomy	Local recurrence is static PET/CT-negative and MRI-positive. Lymph nodes and bone metastases	Yes (radiation therapy and androgen deprivation therapy)	n.a.	n.a.	Negative	Positive

HDR, high-dose rate; HIFU, High intensity focused ultrasound; TURP, transurethral resection of the prostate; n.a., not applicable.