Rosenberg Jared, Natarajan Jyotsna, Carpenter David J, Peluso Chris, Hilton Christie, Champ Colin E
Kinesiology Department, SUNY Cortland, Cortland, NY 13045, USA.
Exercise Oncology Consortium, Pittsburgh, PA 15232, USA.
Diagnostics (Basel). 2025 Jun 17;15(12):1545. doi: 10.3390/diagnostics15121545.
Higher percent body fat (BF) is associated with worse outcomes after treatment for breast cancer (BC). While ultrasound (US) imaging is a reliable method for analyzing body composition, it requires trained individuals for utilization. As such, bioelectrical impedance analysis (BIA) has been suggested as an alternative. Therefore, the goal of this study was to compare BIA with US. : Women from three prospective exercise BC studies were analyzed with US and BIA before an exercise intervention. Spearman's correlation was used as a nonparametric measure to examine bivariate relationships between percent body fat measured by BIA and US. : In total, 106 women with BC had their body composition measured using both US and BIA. Despite a strong correlation between the two methods (r = 0.8, < 0.01), US reported lower mean percent BF vs. BIA (34.6 ± 0.7% vs. 38.0 ± 0.8%, < 0.01). In a subgroup analysis, concordance was seen in women with a body mass index below (BMI) ≤ 26 kg/m. BIA overreported percent BF compared to US in women with a BMI > 26 kg/m. : In women with BC and BMI ≤ 26, US and BIA are in concordance when measuring BF. In women with a BMI > 26, BIA reports a higher BF than US. Overall, there was a strong correlation between modalities, while BMI can be used to guide the utilization of BIA as an alternative to US for assessing body composition.
较高的体脂百分比（BF）与乳腺癌（BC）治疗后的不良预后相关。虽然超声（US）成像 是分析身体成分的可靠方法，但它需要经过培训的人员来操作。因此，有人建议使用生物电阻抗分析（BIA）作为替代方法。因此，本研究的目的是比较BIA和US。：对来自三项前瞻性运动BC研究的女性在运动干预前进行了US和BIA分析。使用Spearman相关性作为非参数测量方法，以检验BIA和US测量的体脂百分比之间的双变量关系。：共有106名BC女性使用US和BIA测量了身体成分。尽管两种方法之间存在很强的相关性（r = 0.8，<0.01），但与BIA相比，US报告的平均BF百分比更低（34.6±0.7%对38.0±0.8%，<0.01）。在亚组分析中，体重指数（BMI）≤26 kg/m²的女性中观察到一致性。与BMI>26 kg/m²的女性相比，BIA报告的BF百分比高于US。：在BMI≤26的BC女性中，US和BIA在测量BF时具有一致性。在BMI>26的女性中，BIA报告的BF高于US。总体而言，两种方法之间存在很强的相关性，而BMI可用于指导使用BIA替代US来评估身体成分。
