Fig. 3From: Dosimetry after peptide receptor radionuclide therapy: impact of reduced number of post-treatment studies on absorbed dose calculation and on patient managementManagement of the 25 patients included in the study based on the kidney cumulative dose “predicted” after one, two, or three post-treatment scan(s) (PTS) and calculated either by using the standard protocol or by using the (t1, t3) or (t2, t3) “2 time-points” protocols with a safety threshold fixed at a 25 Gy and b 30 Gy. Each color bar represents different protocol. Horizontal lines delimit the different managements of the patient (4 CYCLES: the patient can receive 4 cycles of treatment safely, 1 PTS only; 4 CYCLE—2 PTS: the patient can receive 4 cycles of treatment safely, 2 PTS only; CONSIDER A fourth CYCLE—3 PTS: consider to administer a fourth cycle of treatment based on the probability to exceed the safety threshold after 4 cycles; 3 CYCLES—2 PTS: the patient can receive only 3 cycles of treatment safely, 2 PTS only; CONSIDER A third CYCLE—2 PTS: consider to administer at maximum a third cycle of treatment based on the probability to exceed the safety threshold after 3 cycles; STOP TREATMENT—1 cycle: stop treatment after a single cycle of treatment)Back to article page