title: (18)F-FDG PET/CT, cytoreductive surgery and intraperitoneal chemohyperthermia for the therapeutic management in peritoneal carcinomatosis: A pilot study.
abstract: OBJECTIVE
  Peritoneal carcinomatosis is a common evolution of neoplasms and the terminal stage of disease. A new therapeutic technique, based on the total surgical removal of peritoneal lesions (peritonectomy procedure - PP) combined with the intraperitoneal chemohyperthermia (IPCH), has been developed. Proper patient selection is mandatory for optimizing the results of treatment. The aim of this study was to investigate the role of [(18)F]fluoro-2-deoxy-d-glucose Positron Emission Tomography/Computed Tomography ((18)F-FDG PET/CT) in patients with peritoneal carcinosis selected to undergo PP and IPCH. Furthermore, we aimed to identify characteristic patterns of abdominal(18)F-FDG uptake and to correlate these patterns with available anatomic findings after surgery.
  
  
  METHODS
  Patients with either histologically confirmed peritoneal carcinosis or suspected upon clinical follow-up and/or imaging findings were prospectively submitted to pre-surgery (18)F-FDG PET/CT scan. Only those patients without evidence of extra-peritoneal metastases at PET/CT scan were treated with PP and IPCH.
  
  
  RESULTS
  11 patients with peritoneal carcinomatosis (5 colorectal, 4 ovarian, 1 pancreatic) and 1 unknown primitive cancer, were eligible for the study. In all cases PET/CT scan showed multiple peritoneal implants. In 6 out of 11 cases (54%) metastases were evidenced by (18)F-FDG PET/CT: 2 cases with liver metastases; 1 case with bone metastases; 3 patients with lymph-node lesions. Two distinct imaging patterns, with focal or diffuse increased (18)F-FDG uptake, were recognized.
  
  
  CONCLUSIONS
  PP+IPCH of patients selected by (18)F-FDG PET/CT seems to be safe and feasible. PET/CT scan appears as a reliable tool for the detection, characterization of peritoneal implants with potential impact in the therapeutic management of these patients.
authors.affiliation: Positron Emission Tomography Centre IRMET S.p.A., Affidea, Turin, Italy; PET Pediatric AIMN InterGroup, Italy; Institute of Cognitive Sciences and Technologies, CNR, Rome, Italy. Electronic address: a.cistaro@irmet.com.
authors.forename: A
authors.initials: A
authors.lastname: Cistaro
authors.affiliation: Nuclear Medicine Unit Department of Biomedical Sciences and of Mophologic and Functional Images, University of Messina, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Cucinotta
authors.affiliation: Nuclear Medicine Unit Department of Biomedical Sciences and of Mophologic and Functional Images, University of Messina, Italy.
authors.forename: L
authors.initials: L
authors.lastname: Cassalia
authors.affiliation: Department of Diagnostic Imaging, San Luigi Gonzaga Hospital, University of Torino, Orbassano, Torino, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Priola
authors.affiliation: Department of Diagnostic Imaging, San Luigi Gonzaga Hospital, University of Torino, Orbassano, Torino, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Priola
authors.affiliation: Department of Plastic and Reconstructive Surgery, E-DA Hospital, Kaohsiung, Taiwan.
authors.forename: M
authors.initials: M
authors.lastname: Pappalardo
authors.affiliation: Nuclear Medicine Unit Department of Biomedical Sciences and of Mophologic and Functional Images, University of Messina, Italy.
authors.forename: P
authors.initials: P
authors.lastname: Coppolino
authors.affiliation: Candiolo Cancer Institute - FPO, IRCCS, Unit of Surgical Oncology, Turin, Italy.
authors.forename: M
authors.initials: M
authors.lastname: De Simone
authors.affiliation: Wolfson Molecular Imaging Centre, The University of Manchester, Manchester, United Kingdom.
authors.forename: N
authors.initials: N
authors.lastname: Quartuccio
mesh_terms: D000328:Adult; D000368:Aged; D003131:Combined Modality Therapy; D065426:Cytoreduction Surgical Procedures; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D006979:Hyperthermia, Induced; D008297:Male; D008875:Middle Aged; D010534:Peritoneal Neoplasms / Q000000981:diagnostic imaging* / Q000628:therapy*; D010865:Pilot Projects; D000072078:Positron Emission Tomography Computed Tomography; D011446:Prospective Studies; D019275:Radiopharmaceuticals
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18
keywords: Carcinomatosis peritoneal; Cirugía citorreductora; Cytoreductive surgery; Hyperthermic antiblastic peritoneal perfusion; Intraperitoneal chemohyperthermia; Perfusión hipertérmica antiblástica peritoneal; Peritoneal carcinomatosis; Quimiohipertermia intraperitoneal; Tomografía computarizada/tomografía de emisión de positrones con [(18)F]fluoro-2-deoxy-d-glucosa ((18)F-FDG PET/CT); [(18)F]fluoro-2-deoxy-d-glucose Positron Emission Tomography/Computed Tomography