Preoperative computed tomography angiography (CTA), volume-rendered reconstruction of the abdominal wall vasculature with: (A) Osirix (Pixmeo, Geneva, Switzerland); and (B) Siemens Syngo InSpace 4D (Siemens, Erlangen, Germany). Both techniques clearly demonstrate several large periumbilical perforators (blue arrows), and highlight features of the abdominal wall soft-tissues. Reproduced with permission from Rozen et al. (28).