Jing Sun1, Han Lv1, Mengyi Li2, Lei Zhao1, Yawen Liu3, Na Zeng4, Xuan Wei1, Qian Chen1, Pengling Ren1, Yang Liu2, Peng Zhang2, Zhenghan Yang1, Zhongtao Zhang2, Zhenchang Wang1. 1. Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China. 2. Department of General Surgery, Beijing Friendship Hospital, Capital Medical University & National Clinical Research Center for Digestive Diseases, Beijing, China. 3. School of Biological Science and Medical Engineering, Beihang University, Beijing, China. 4. National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
Abstract
BACKGROUND: This study aimed to elucidate the changes in the amount of abdominal adipose tissue after laparoscopic sleeve gastrectomy in obese Chinese patients over a relatively short follow-up period and to analyze the differences in the effects of surgery between genders. METHODS: Ninety-one patients were enrolled in the study, including 18 males and 73 females. These patients underwent laparoscopic sleeve gastrectomy between November 2017 and November 2019. Before and short term after surgery, the areas of subcutaneous/visceral adipose tissue and the liver proton density fat fraction were calculated with upper abdominal magnetic resonance (MR) examinations. RESULTS: Approximately 100 days after surgery, the median values of weight loss and body mass index reduction were 23.1 kg and 8.1 kg/m2, respectively. The patients achieved a greater absolute loss of subcutaneous adipose tissue index than of visceral adipose tissue index (3.2×10-3 vs. 1.6×10-3, P<0.001). The amount of weight loss, body mass index loss and absolute/relative reduction in visceral adipose tissue index were much greater in males than in females (31.7 vs. 21.7 kg, P<0.001; 9.8 vs. 7.9 kg/m2, P=0.016; 2.5×10-3 vs. 1.3×10-3, P=0.007; 28.2% vs. 20.9%, P=0.029). There was a correlation between decreased amounts in subcutaneous and visceral adipose tissue in sum and weight loss (r=0.282, P=0.032). The absolute/relative reduction in visceral adipose tissue index was also correlated with absolute/relative reduction in liver proton density fat fraction (r=0.283, P=0.013; r=0.372, P=0.001). CONCLUSIONS: The reductions in body weight and visceral fat were more significant in male patients. The sum of absolute reduction in subcutaneous and visceral fat deposits was correlated with weight loss, in all patients enrolled. For severely obese patients, an upper abdominal MR examination could assess the body tissue composition and how it changes after bariatric surgery. 2021 Quantitative Imaging in Medicine and Surgery. All rights reserved.
BACKGROUND: This study aimed to elucidate the changes in the amount of abdominal adipose tissue after laparoscopic sleeve gastrectomy in obese Chinese patients over a relatively short follow-up period and to analyze the differences in the effects of surgery between genders. METHODS: Ninety-one patients were enrolled in the study, including 18 males and 73 females. These patients underwent laparoscopic sleeve gastrectomy between November 2017 and November 2019. Before and short term after surgery, the areas of subcutaneous/visceral adipose tissue and the liver proton density fat fraction were calculated with upper abdominal magnetic resonance (MR) examinations. RESULTS: Approximately 100 days after surgery, the median values of weight loss and body mass index reduction were 23.1 kg and 8.1 kg/m2, respectively. The patients achieved a greater absolute loss of subcutaneous adipose tissue index than of visceral adipose tissue index (3.2×10-3 vs. 1.6×10-3, P<0.001). The amount of weight loss, body mass index loss and absolute/relative reduction in visceral adipose tissue index were much greater in males than in females (31.7 vs. 21.7 kg, P<0.001; 9.8 vs. 7.9 kg/m2, P=0.016; 2.5×10-3 vs. 1.3×10-3, P=0.007; 28.2% vs. 20.9%, P=0.029). There was a correlation between decreased amounts in subcutaneous and visceral adipose tissue in sum and weight loss (r=0.282, P=0.032). The absolute/relative reduction in visceral adipose tissue index was also correlated with absolute/relative reduction in liver proton density fat fraction (r=0.283, P=0.013; r=0.372, P=0.001). CONCLUSIONS: The reductions in body weight and visceral fat were more significant in male patients. The sum of absolute reduction in subcutaneous and visceral fat deposits was correlated with weight loss, in all patients enrolled. For severely obese patients, an upper abdominal MR examination could assess the body tissue composition and how it changes after bariatric surgery. 2021 Quantitative Imaging in Medicine and Surgery. All rights reserved.
Entities:
Keywords:
Upper abdominal magnetic resonance imaging (upper abdominal MRI); abdominal adipose tissue; bariatric surgery; single magnetic resonance slice (single MR slice)
Authors: S Tokur; K Lederle; D D Terris; M N Jarczok; S Bender; S O Schoenberg; G Weisser Journal: Int J Qual Health Care Date: 2011-12-02 Impact factor: 2.038
Authors: Paul T Kröner Florit; Juan E Corral Hurtado; Karn Wijarnpreecha; Enrique F Elli; Frank J Lukens Journal: Obes Surg Date: 2019-11 Impact factor: 4.129
Authors: Stacy A Porter; Joseph M Massaro; Udo Hoffmann; Ramachandran S Vasan; Christopher J O'Donnel; Caroline S Fox Journal: Diabetes Care Date: 2009-02-24 Impact factor: 19.112
Authors: Federico Greco; Rodrigo Salgado; Wim Van Hecke; Romualdo Del Buono; Paul M Parizel; Carlo Augusto Mallio Journal: Quant Imaging Med Surg Date: 2022-03