A new non-invasive blood glucose measuring apparatus (NBGMA) made up of MSP430F149 SCM (single chip micyoco) was developed,which can measure blood glucose level (BGL) frequently,conveniently and painlessly. The hardwa...A new non-invasive blood glucose measuring apparatus (NBGMA) made up of MSP430F149 SCM (single chip micyoco) was developed,which can measure blood glucose level (BGL) frequently,conveniently and painlessly. The hardware and software of this apparatus were designed,and detecting algorithms based on conservation of energy method (COEM) were presented. According to the law of conservation of energy that the energy derived by human body equals energy consumed by metabolism,and the relationship between convection,evaporation,radiation and the BGL was established. The sensor module was designed. 20 healthy volunteers were involved in the clinical experiment. The BGL measured by an automatic biochemical analyzer (ABA) was set as the reference. Regression analysis was performed to compare the conservation of energy method with the biochemical method,using the 20 data points with blood glucose concentrations ranging from 680 to 1 100 mg/L. Reproducibility was measured for healthy fasting volunteers. The results show that the means of BGL detected by NBGMA and ANA are very close to each other,and the difference of standard deviation (SD) is 24.7 mg/L. The correlative coefficient is 0.807. The coefficient of variation (CV) is 4% at 921.6 mg/L. The resultant regression is evaluated by the Clarke error grid analysis (EGA) and all data points are included in the clinically acceptable regions (region A:100%,region B:0%). Accordingly,it is feasible to measure BGL with COEM.展开更多
Non-invasive prenatal gene diagnosis has been developed rapidly in the recent years, and numerous medical researchers are focusing on it. Such techniques could not only achieve prenatal diagnosis accurately, but also ...Non-invasive prenatal gene diagnosis has been developed rapidly in the recent years, and numerous medical researchers are focusing on it. Such techniques could not only achieve prenatal diagnosis accurately, but also prevent tangential illness in fetuses and thus, reduce the incidence of diseases. Moreover, it is non-invasive prenatal gene diagnosis that prevents potential threaten and danger to both mothers and fetuses. Therefore, it is welcomed by clinical gynecologist and obstetrian, researchers of medical genetics, and especially, pregnancies. This review article touches briefly on the advanced development of using cell-free DNA, RNA in maternal plasma and urine for non-invasive prenatal gene diagnosis.展开更多
目的 研发前庭功能信息化系统(vestibular function information system,VFIS),并实现临床应用。方法在医院信息化系统(hospital information system,HIS)的框架下,进行软件开发,通过构建VFIS可将医院各个前庭功能检查设备与HIS互联。结...目的 研发前庭功能信息化系统(vestibular function information system,VFIS),并实现临床应用。方法在医院信息化系统(hospital information system,HIS)的框架下,进行软件开发,通过构建VFIS可将医院各个前庭功能检查设备与HIS互联。结果VFIS运行平稳,实现多个品牌、10余项前庭功能检查与HIS联网,实现量表、检查结果数据化,可批量处理统计,实现受试者自动排序、叫号,电子版报告HIS共享,7种不同模板规范化报告及各个设备运行效率与工作量监测。结论 VFIS可有效提高临床与科研效率,实现检查数据永久保存,是安全可靠的前庭医学信息数字化应用系统。展开更多
目的:对227例儿童原发性中枢神经系统肿瘤(primary pediatric Central Nervous System Tumors,ppCNST)进行电镜超微形态观察,分析其超微病理改变特征,为临床准确诊断ppCNST提供超微病理学依据。方法:回顾性分析了2019年6月至2024年6月...目的:对227例儿童原发性中枢神经系统肿瘤(primary pediatric Central Nervous System Tumors,ppCNST)进行电镜超微形态观察,分析其超微病理改变特征,为临床准确诊断ppCNST提供超微病理学依据。方法:回顾性分析了2019年6月至2024年6月收集的227例18岁以下ppCNST病例的年龄和性别的分布情况与肿瘤的发生部位、组织学类型和分级以及超微病理学改变。结果:227例患儿的平均年龄为10.3岁,男女比例为1.52∶1,均为颅内肿瘤(100%,227/227)。颅内肿瘤中,相对于幕下肿瘤(22.9%,52/227)而言,以幕上(包括松果体-四叠体区)肿瘤(77.1%,175/227)为主。本组病例中,经超微病理学辅助诊断患儿227例,其中最常见的6种肿瘤分别为:颅咽管瘤(65.6%,149/227),脊索瘤(17.2%,36/227),垂体神经内分泌肿瘤(11.5%,26/227),髓母细胞瘤(4.4%,10/227),生殖细胞瘤(1.3%,3/227),星形细胞瘤(1.3%,3/227)。结论:儿童原发性中枢神经系统肿瘤的发病具有其特殊性,结合临床症状、影像学检查、组织病理学以及超微病理学对患儿进行综合诊断有利于提高诊断率,降低误诊率,改善患儿生存质量。对于疑难病例,影像学改变非特异性或者免疫组织化学假阴性的患儿,电镜检查具有独特优势。展开更多
基金Project(07JJ6133) supported by the Natural Science Foundation of Hunan Province, China
文摘A new non-invasive blood glucose measuring apparatus (NBGMA) made up of MSP430F149 SCM (single chip micyoco) was developed,which can measure blood glucose level (BGL) frequently,conveniently and painlessly. The hardware and software of this apparatus were designed,and detecting algorithms based on conservation of energy method (COEM) were presented. According to the law of conservation of energy that the energy derived by human body equals energy consumed by metabolism,and the relationship between convection,evaporation,radiation and the BGL was established. The sensor module was designed. 20 healthy volunteers were involved in the clinical experiment. The BGL measured by an automatic biochemical analyzer (ABA) was set as the reference. Regression analysis was performed to compare the conservation of energy method with the biochemical method,using the 20 data points with blood glucose concentrations ranging from 680 to 1 100 mg/L. Reproducibility was measured for healthy fasting volunteers. The results show that the means of BGL detected by NBGMA and ANA are very close to each other,and the difference of standard deviation (SD) is 24.7 mg/L. The correlative coefficient is 0.807. The coefficient of variation (CV) is 4% at 921.6 mg/L. The resultant regression is evaluated by the Clarke error grid analysis (EGA) and all data points are included in the clinically acceptable regions (region A:100%,region B:0%). Accordingly,it is feasible to measure BGL with COEM.
文摘Non-invasive prenatal gene diagnosis has been developed rapidly in the recent years, and numerous medical researchers are focusing on it. Such techniques could not only achieve prenatal diagnosis accurately, but also prevent tangential illness in fetuses and thus, reduce the incidence of diseases. Moreover, it is non-invasive prenatal gene diagnosis that prevents potential threaten and danger to both mothers and fetuses. Therefore, it is welcomed by clinical gynecologist and obstetrian, researchers of medical genetics, and especially, pregnancies. This review article touches briefly on the advanced development of using cell-free DNA, RNA in maternal plasma and urine for non-invasive prenatal gene diagnosis.
文摘目的 研发前庭功能信息化系统(vestibular function information system,VFIS),并实现临床应用。方法在医院信息化系统(hospital information system,HIS)的框架下,进行软件开发,通过构建VFIS可将医院各个前庭功能检查设备与HIS互联。结果VFIS运行平稳,实现多个品牌、10余项前庭功能检查与HIS联网,实现量表、检查结果数据化,可批量处理统计,实现受试者自动排序、叫号,电子版报告HIS共享,7种不同模板规范化报告及各个设备运行效率与工作量监测。结论 VFIS可有效提高临床与科研效率,实现检查数据永久保存,是安全可靠的前庭医学信息数字化应用系统。
文摘目的:对227例儿童原发性中枢神经系统肿瘤(primary pediatric Central Nervous System Tumors,ppCNST)进行电镜超微形态观察,分析其超微病理改变特征,为临床准确诊断ppCNST提供超微病理学依据。方法:回顾性分析了2019年6月至2024年6月收集的227例18岁以下ppCNST病例的年龄和性别的分布情况与肿瘤的发生部位、组织学类型和分级以及超微病理学改变。结果:227例患儿的平均年龄为10.3岁,男女比例为1.52∶1,均为颅内肿瘤(100%,227/227)。颅内肿瘤中,相对于幕下肿瘤(22.9%,52/227)而言,以幕上(包括松果体-四叠体区)肿瘤(77.1%,175/227)为主。本组病例中,经超微病理学辅助诊断患儿227例,其中最常见的6种肿瘤分别为:颅咽管瘤(65.6%,149/227),脊索瘤(17.2%,36/227),垂体神经内分泌肿瘤(11.5%,26/227),髓母细胞瘤(4.4%,10/227),生殖细胞瘤(1.3%,3/227),星形细胞瘤(1.3%,3/227)。结论:儿童原发性中枢神经系统肿瘤的发病具有其特殊性,结合临床症状、影像学检查、组织病理学以及超微病理学对患儿进行综合诊断有利于提高诊断率,降低误诊率,改善患儿生存质量。对于疑难病例,影像学改变非特异性或者免疫组织化学假阴性的患儿,电镜检查具有独特优势。
