The utility of dual bioelectrical impedance analysis in detecting intra-abdominal fat area in obese patients during weight reduction therapy in comparison with waist circumference and abdominal CT

Hajime Yamakage; Ryo Ito; Mayu Tochiya; Kazuya Muranaka; Masashi Tanaka; Yoshiyuki Matsuo; Shinji Odori; Shigeo Kono; Akira Shimatsu; Noriko Satoh-Asahara

doi:10.1507/endocrj.EJ14-0092

ORIGINALS

The utility of dual bioelectrical impedance analysis in detecting intra-abdominal fat area in obese patients during weight reduction therapy in comparison with waist circumference and abdominal CT

Hajime Yamakage, Ryo Ito, Mayu Tochiya, Kazuya Muranaka, Masashi Tanaka, Yoshiyuki Matsuo, Shinji Odori, Shigeo Kono, Akira Shimatsu, Noriko Satoh-Asahara

Author information

Hajime Yamakage
Division of Diabetic Research, Clinical Research Institute, National Hospital Organization, Kyoto Medical Center, Kyoto 612-8555, Japan
Ryo Ito
Diabetes Center, National Hospital Organization, Kyoto Medical Center, Kyoto 612-8555, Japan
Mayu Tochiya
Diabetes Center, National Hospital Organization, Kyoto Medical Center, Kyoto 612-8555, Japan
Kazuya Muranaka
Division of Diabetic Research, Clinical Research Institute, National Hospital Organization, Kyoto Medical Center, Kyoto 612-8555, Japan
Masashi Tanaka
Division of Diabetic Research, Clinical Research Institute, National Hospital Organization, Kyoto Medical Center, Kyoto 612-8555, Japan
Yoshiyuki Matsuo
Division of Diabetic Research, Clinical Research Institute, National Hospital Organization, Kyoto Medical Center, Kyoto 612-8555, Japan
Shinji Odori
Division of Diabetic Research, Clinical Research Institute, National Hospital Organization, Kyoto Medical Center, Kyoto 612-8555, Japan
Diabetes Center, National Hospital Organization, Kyoto Medical Center, Kyoto 612-8555, Japan
Shigeo Kono
Division of Diabetic Research, Clinical Research Institute, National Hospital Organization, Kyoto Medical Center, Kyoto 612-8555, Japan
Diabetes Center, National Hospital Organization, Kyoto Medical Center, Kyoto 612-8555, Japan
Akira Shimatsu
Division of Diabetic Research, Clinical Research Institute, National Hospital Organization, Kyoto Medical Center, Kyoto 612-8555, Japan
Noriko Satoh-Asahara
Division of Diabetic Research, Clinical Research Institute, National Hospital Organization, Kyoto Medical Center, Kyoto 612-8555, Japan

Keywords: Intra-abdominal fat area, Obesity, Dual bioelectrical impedance analysis, Abdominal CT, Weight reduction therapy

JOURNAL FREE ACCESS

2014 Volume 61 Issue 8 Pages 807-819

DOI https://doi.org/10.1507/endocrj.EJ14-0092

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Abstract

An increase in intra-abdominal fat area (IAFA) is an essential component of metabolic syndrome (MetS). Waist circumference (WC) is not a precise measure of IAFA, and computed tomography (CT) is unsuitable for frequent monitoring. Here, we examined utility of a dual bioelectrical impedance analysis (Dual BIA) for measuring IAFA in obese patients during weight reduction. Fat distribution was measured by Dual BIA and CT in 100 obese outpatients. All fat areas including total, IAFA, and subcutaneous fat by Dual BIA were more closely correlated with those by CT than WC. Estimated IAFA by Dual BIA was significantly correlated with number of MetS components as well as CT, but WC was not. Furthermore, in 61 obese patients who received 6-month weight reduction therapy, estimated IAFA by Dual BIA showed an earlier and greater decrease as well as that by CT than WC and BMI. In addition, decrease in estimated IAFA by Dual BIA through weight reduction had a higher correlation with decrease in IAFA by CT, than WC. This study is the first to demonstrate that the change in estimated IAFA by Dual BIA was highly correlated with that in IAFA by CT during weight reduction therapy. Our findings also indicate that estimated IAFA by Dual BIA is, potentially, a better indicator of severity of MetS, cardiovascular risk factors, and effectiveness of weight reduction than WC, and equal to IAFA by CT. Estimated IAFA by Dual BIA may be useful for monitoring the effectiveness of weight reduction therapy in obese patients.

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