Prediction of the Risk of Laparoscopy-Assisted Gastrectomy by Comparing Visceral Fat Area and Body Mass Index

Figure 1

Quantification of visceral fat area: (a) select CT images at the umbilical level to calculate the visceral fat area; (b) with the mouse to drag the coil marked visceral tissue region; (c) we can determine the threshold by dragging the dotted line in the view. Adipose tissue was determined by setting the attenuation level within the range of −190 to −30 Hounsfield units. VFA was quantified automatically by the software.

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