肝脏和肌肉脂肪分数之间的关联:使用质子密度脂肪分数MRI的研究
Gülsüm Kilickap1, Mehmet Cem Kolsuz1
1Department of Radiology, Ankara Bilkent City Hospital, Ankara, Turkey.
British journal of hospital medicine (London, England : 2005)
|September 25, 2025
概括
在psoas和副脊柱肌肉中脂肪增加与代谢功能障碍相关的脂肪性肝病 (MASLD) 有关. 这些地区肌肉脂肪含量较高可能表明脂肪肝,显示出适度的诊断能力.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 放射学 放射学是一门学科.
- 代谢疾病 代谢疾病
背景情况:
- 与代谢功能障碍相关的脂肪性肝病 (MASLD) 很普遍,并与胰岛素抵抗,代谢综合征和潜在的肝纤维化有关.
- 骨髓炎,或肌肉脂肪透,与MASLD共享共同的病理生理路径,表明肌肉和肝脏脂肪积累之间的潜在联系.
研究的目的:
- 为了研究psoas和副脊柱肌肉脂肪含量和肝脏脂肪含量之间的关系.
- 为了比较患有和没有脂肪肝的患者的肌肉脂肪含量.
主要方法:
- 在280名患者中利用T2*磁共振成像 (T2*MRI) 来使用质子密度脂肪分数 (PDFF) 评估脂肪分数.
- 采用年龄和性别调整的回归模型来分析肝脏脂肪分数和肌肉脂肪分数 (psoas和副脊柱) 之间的关联.
主要成果:
- 脂肪肝在男性 (68%) 的人群中比女性 (50%) 更多.
- 在患有脂肪肝 (p < 0.001) 的患者中,psoas和副脊髓肌肉脂肪分量显著更高 (p < 0.001).
- 这两种肌肉脂肪分数都与肝脂肪分数呈现出显著的非线性关联,脂肪肝诊断的区分值相似 (ROC AUC 0.715 与 0.678).
结论:
- 肝脏脂肪分数和psoas/脊柱肌肉脂肪分数之间存在显著的非线性关系.
- 脊肌和脊肌中的脂肪含量增加与脂肪肝有关,这表明诊断效果中等.
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