Objective To discuss the MRI feature of meningeal metastasis and correlation of peritumoral brain edema and vascular endothelial growth factor(VEGF)expression.Methods 48 patients with meningeal metas-tasis were observed with plain and enhanced 1 .5 T magnetic resonance imaging scans,surgical removal of the tumor tissues was measured with VEGF immunohistochemistry.Results The patients with MC showed three types MRI fea-ture.The more vascular endothelial growth factor of the tumor tissues expressed,the more peritumoral brain edema (χ2 =33.34,P<0.01 ).Conclusion MRI scanning is necessary for clinical diagnosis in MC.There are positive correlation between the expression of vascular endothelial growth factor of the tumor tissues and peritumoral brain edema(P<0.01).

Objective:To understand the results of blind evaluation of dissertation of three-year doctors and eight-year medical doctors, and to explore the improvement measures of eight-year program education.Methods:The data analysis method was manipulated. A total of 47 eight-year doctoral and 88 three-year doctoral dissertations submitted by the first clinical college of Huazhong University of Science and Technology in 2020 were selected as the research material. SPSS 17.0 was used to perform Chi-square test to compare the itemized evaluation opinions of the dissertation, Spearman test was used to analyze the correlation between the defense opinions, itemized evaluation opinions and the overall evaluation.Results:The gap between eight-year and three-year doctoral dissertation is mainly manifested in innovation and research value ( χ2=9.10, P=0.003), topic and review ( χ2=5.70, P=0.017), while there is no significant difference in the overall assessment and oral defense suggestion. The main influencing factor of dissertation defense suggestion for both doctors was the dissertation standardization (eight-year: r s=0.53, P<0.001; three-year: r s=0.45, P<0.001). The evaluation results of eight-year doctor dissertation were closely related to basic knowledge and scientific research ability ( r s=0.74, P<0.001). Conclusion:There is no significant difference between eight-year doctors and full-time doctors in research attitude. But there was a certain gap in scientific research and innovation ability among them. It is suggested to clarify the teaching objectives, formulate and refine the evaluation system of dissertations, and strengthen the cultivation of scientific research interest and academic belief of eight-year study program.