Document Classification

Section Type: METHODS

Text: The thickness of abdominal adipose layer (i. e.; S1 = distance from the interface of the skin and subcutaneous fat to the linea alba abdominis at the midpoint between the xiphoid-process and the umbilicus ; S2 = distance from the interface of the skin and subcutaneous fat to the anterior bounder of the external oblique muscle of abdomen on the right side closely to the umbilicus center) and visceral fat layer thickness (V 1 = distance from the midpoint of the linea alba abdominis to the anterior bounder of the vertebra body ; V 2 = distance from the peritoneum to the right bounder of the vertebra body at the umbilicus level) were measured for calculating ultrasound viscerofatty index [UVI = (V 1 + V2) / (S 1 + S 2)] by using a color Doppler ultrasonography.