Contribution of Preserving the Superior Left Colic Artery to the Vascularization of the Descending Colon Prior to Colorectal Anastomosis During Left-Sided or Rectal Resections for Colorectal or Ovarian Cancer. (Revascularisation Colique)

"* Injection of Indocynianine green (INFRACYANINE 25mg diluted in 10 mL solvent, IV injection of 3ml at a concentration of 2.5 mg/mL or 7.5 mg), (excluding NaCl), purge 10ml NaCl,~* Camera model (STORZ)~* Camera/target distance: 5cm~* Camera recording time (since Indocynianine green injection): 2 to 5 min with temporal identification of the injection time.~Extracorporeal evaluation (by mini laparatomy extraction in colorectal surgery minimally invasive, by laparotomy in case of ovarian cancer with lights of the room switched off (laparotomy)"