消化系统恶性肿瘤相关肌少症的影像学研究进展

Progress of radiological research on digestive system malignancy related sarcopenia

肌少症是一种以肌量减少、肌功能下降为主要特征的系统性疾病。肌少症与消化系统恶性肿瘤术后恢复情况密切相关。双能X线吸收测量仪(DXA)、定量CT(QCT)及MRI等影像方法可用于评估消化系统恶性肿瘤相关肌少症,可以测量其肌量和脂肪量,MRI还可探测肌肉水肿、肌间脂肪浸润及纤维化等改变,反映组织结构和成分变化,进而对消化系统恶性肿瘤病人的预后进行监测及疗效评估。

Sarcopenia is a systemic disease characterized by decreased muscle mass and function, which is closely related to postoperative recovery of digestive system malignancy. Some radiological methods, including dual-energy X-ray absorptiometry, quantitative computed tomography and magnetic resonance imaging, have been used to evaluate digestive system malignancy related sarcopenia. These methods can be applied to the measurement of muscle mass and fat mass. MRI can also be used to detect changes such as muscle edema, intermuscular fat infiltration and fibrosis, identify changes in tissue structure and composition, and then monitor the prognosis of patients with digestive system malignancy and evaluate the treatment efficacy.