不同進展階段肝性腦病患者大腦靜息態(tài)功能和腦代謝研究
[Abstract]:Objective: to investigate the amplitude of low frequency oscillations and brain metabolism in patients with hepatic encephalopathy (HE) with different severity. Methods: a total of 32 patients with HE were selected from May 2014 to May 2016. According to the severity of the disease, they were divided into two groups: 22 patients with mild hepatic encephalopathy (MHE) and 10 patients with severe hepatic encephalopathy (OHE). Thirteen healthy subjects who underwent physical examination at the same time were selected as the control group. The brain function in resting state was examined by using BOLD-fMRI and magnetic resonance spectroscopy respectively, and the abnormal state of brain metabolites was analyzed. Results: compared with the control group, the fractional low frequency oscillation amplitude in the default network area and cerebellar area of the patients in the MHE and OHE groups was significantly lower than that in the control group, and in the middle temporal gyrus. The fractional low frequency oscillation amplitude of middle frontal gyrus and paraventricular leukoplasm was significantly increased. The Cho/Cr and mI/Cr of MHE group were significantly higher than those of OHE group (P 0.05) and OHE group (1.93 鹵0.152.03 鹵0.22, respectively). There was no significant difference between MHE group and OHE group (P < 0.51). The product ratio was significantly lower than that in the normal control group (NAA/Cr 2.78 鹵0.19) (P 0.05). Conclusion the lower amplitude of low-frequency oscillation in rest default network area and cerebellar area is, the more serious the structure of the middle temporal gyrus is, the more serious it is, the lower the amplitude of oscillation is. The lower the ratio of subpeak area of brain metabolites in patients with HE, the more serious the disease is, which provides a reference for diagnosis and treatment.
【作者單位】: 甘肅省蘭州市第二人民醫(yī)院醫(yī)學影像科;
【基金】:蘭州市人才創(chuàng)新創(chuàng)業(yè)科技計劃項目(2015-RC-56)
【分類號】:R445.2;R747.9
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