A New Fast DWI-based MR Protocol for Surveillance in Patients With a High Risk of Ovarian Cancer Recurrence During PARP-inhibitors Maintenance to Enhance Secondary Cytoreduction Results

In ovarian cancer (OC), complete surgical debulking and platinum-based chemotherapy are the standard treatment, now followed by maintenance therapy with PARP inhibitors or Bevacizumab. However, in advanced-stage ovarian cancer, recurrence is common, with a progression-free survival of about 16 months. Secondary cytoreductive surgery (SCS) at the time of recurrence prolongs the overall survival and gives the possibility to extend the use of PARP-i. SCS is possible only when recurrence has limited extension. However, in OC, there is no well-established and widely accepted scheme for surveillance during maintenance therapy; ESMO guidelines suggest physical examination for the follow-up and allow ultrasound, CT, PET-CT and MRI to confirm the recurrence and plan surgical treatment if appropriate.