Research progresses of artificial intelligence in MRI of lumbar degenerative diseases

The incidence of lumbar degenerative diseases is increasing year by year,and MRI is often used in clinical diagnosis.In recent years,artificial intelligence(AI)has rapidly developed in medical field and can be used for image segmentation and auxiliary diagnosis of lumbar degenerative diseases.The research progresses of AI in MRI of lumbar degenerative diseases were reviewed in this article.

2014级五年制三教班外科学及野战外科学期末试卷分析

目的 分析2014级五年制三教班医学生期末考试试卷,考察不同专业学员对该课程的掌握情况,完善题库建设,检验教与学质量,为进一步教改提供依据。方法,利用SPSS 21.0,对2014级五年制三教班共133份外科学及野战外科学期末考试试卷进行分析。结果,参加考试的133名学员中,所得最高分93.5,最低分52.0,平均成绩为(70.63±9.01)分;不及格(60分以下)有6人,占4.51%。试卷整体难度系数(P)为0.71,选择题和填空题P值在0.4~0.7。各题型区分度(D)均大于0.600,整体试卷信度为0.764。试卷得分整体呈正态分布;麻醉专业学员平均成绩优于海医专业,两者均优于心理专业;且麻醉与海医、麻醉与心理专业学员成绩差异均有统计学意义(P<0.05)。结论,本套试卷题型分配全面、设计基本合理;难度整体偏易,区分度较好,信度较好,成绩分布合理;命题仍需完善,注意合理分配试题难度。本课程应设法加强对心理专业学员的教学。