Figure 4From: Direct microvascular monitoring of a free autologous jejunal flap using microendoscopy: a case reportMicroendoscopic view ×150 showing mucosal surface and underlying capillary network at time "1". No methylene blue stain was used. Here the capillaries are seen to open up and become visible; this is a pulsatile phenomenon in real time. This suggests good flow and perfusion pressure. The procedure may be done intraoperatively and postoperatively via an endoscope.Back to article page