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International Journal of Endocrinology
Volume 2017 (2017), Article ID 8796069, 12 pages
https://doi.org/10.1155/2017/8796069
Research Article

Novel and Simple Ultrasonographic Methods for Estimating the Abdominal Visceral Fat Area

1Department of Gastroenterology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
2Translational Systems Biology and Medicine Initiative (TSBMI), University of Tokyo, Tokyo, Japan
3Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
4Graduate School of Engineering, University of Tokyo, Tokyo, Japan
5Graduate School of Informatics and Engineering, University of Electro-Communications (UEC), Tokyo, Japan
6Hitachi Ltd., Tokyo, Japan
7Department of Gastroenterology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
8Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China
9Institute of Rural Medicine, Hiraka General Hospital, Yokote, Akita, Japan

Correspondence should be addressed to Naoto Kubota; pj.ca.nimu@ykt-atobukn and Takashi Kadowaki; pj.ca.oykot-u.h@mi3-ikawodak

Received 16 December 2016; Revised 18 March 2017; Accepted 9 April 2017; Published 22 August 2017

Academic Editor: Mario Maggi

Copyright © 2017 Takeharu Asano et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objectives. To evaluate the abdominal visceral fat area (VFA), we developed novel ultrasonographic (US) methods for estimating. Methods. 100 male volunteers were recruited, and their VFA was calculated by two novel US methods, the triangle method and the ellipse method. The VFA calculated by these methods was compared with the VFA calculated by CT. Results. Both the VFA calculated by the triangle method (, ) and the ellipse method (, ) showed a high correlation coefficient with the VFA calculated by CT. Also, the VFA calculated by our novel methods were significantly increased in subjects with one or more metabolic risk factors than in those without any risk factors. Furthermore, the correlation coefficients obtained using the two methods were enhanced by the addition of multiple regression analysis (with the triangle method, , ; with the ellipse method, , ). Conclusions. The VFA calculated by the triangle or ellipse method showed a high correlation coefficient with the VFA calculated by CT. These US methods are easy to use, they involve no radiation exposure, and the measurements can be conducted frequently. We hope that our simple methods would be widely adopted for the evaluation of VFA.