Artificial intelligence based real-time microcirculation analysis system for laparoscopic colorectal surgery

Figure 8 Various indocyanine green curve pattern by collateral circulatory structure of colonic mesentery after inferior mesenteric artery ligation during colorectal surgery. A: High ligation of inferior mesenteric artery (IMA) with intact collateral circulation of marginal artery; B: High ligation of IMA with insufficient collateral circulation by weak marginal artery connection in the splenic flexure mesentery; C: Intermesenteric artery connected between left colic artery and middle colic artery with intact collateral circulation; D: Low ligation of IMA with intact left colic arterial flow from IMA. IMA: Inferior mesenteric artery.