Study	Reason for exclusion
Cotton 2006	Other target condition. In patients with peritoneal carcinomatosis, MRI was used to evaluate tumour masses in the mesentery and bladder involvement.
Lopez‐Lopez 2016	Study population: only one patient received primary debulking surgery after preoperative evaluation by PET‐CT. Also, Peritoneal Carcinomatosis Index was used as target condition instead of the completeness of debulking surgery.
Low 2012	Other target condition. MRI was used to predict Peritoneal Cancer Index in patients being considered for cytoreductive surgery, of whom 5 were diagnosed with ovarian cancer.
Pfannenberg 2009	Other target condition. Peritoneal Cancer Index was estimated using PET‐CT to select patients for cytoreductive surgery or hyperthermic intraperitoneal chemotherapy, of whom 7 were diagnosed with ovarian cancer.
Qayyum 2005	Required data could not be extracted from the published article and was not provided by study authors.
Risum 2008	Not a diagnostic test accuracy study
Risum 2011	Not a diagnostic test accuracy study

CT: computed tomography
 MRI: magnetic resonance imaging
 PET: positron emission tomography