BACKGROUND Hepatocellular carcinoma is the most common primary liver malignancy.From the results of previous studies,Liver Imaging Reporting and Data System(LIRADS)on contrast-enhanced ultrasound(CEUS)has shown satisf...BACKGROUND Hepatocellular carcinoma is the most common primary liver malignancy.From the results of previous studies,Liver Imaging Reporting and Data System(LIRADS)on contrast-enhanced ultrasound(CEUS)has shown satisfactory diagnostic value.However,a unified conclusion on the interobserver stability of this innovative ultrasound imaging has not been determined.The present metaanalysis examined the interobserver agreement of CEUS LI-RADS to provide some reference for subsequent related research.AIM To evaluate the interobserver agreement of LI-RADS on CEUS and analyze the sources of heterogeneity between studies.METHODS Relevant papers on the subject of interobserver agreement on CEUS LI-RADS published before March 1,2020 in China and other countries were analyzed.The studies were filtered,and the diagnostic criteria were evaluated.The selected references were analyzed using the“meta”and“metafor”packages of R software version 3.6.2.RESULTS Eight studies were ultimately included in the present analysis.Meta-analysis results revealed that the summary Kappa value of included studies was 0.76[95%confidence interval,0.67-0.83],which shows substantial agreement.Higgins I2 statistics also confirmed the substantial heterogeneity(I2=91.30%,95%confidence interval,85.3%-94.9%,P<0.01).Meta-regression identified the variables,including the method of patient enrollment,method of consistency testing,and patient race,which explained the substantial study heterogeneity.CONCLUSION CEUS LI-RADS demonstrated overall substantial interobserver agreement,but heterogeneous results between studies were also obvious.Further clinical investigations should consider a modified recommendation about the experimental design.展开更多
With fossil fuel being the major source of energy,CO_(2) emission levels need to be reduced to a minimal amount namely from anthropogenic sources.Energy consumption is expected to rise by 48%in the next 30 years,and g...With fossil fuel being the major source of energy,CO_(2) emission levels need to be reduced to a minimal amount namely from anthropogenic sources.Energy consumption is expected to rise by 48%in the next 30 years,and global warming is becoming an alarming issue which needs to be addressed on a thorough technical basis.Nonetheless,exploring CO_(2) capture using membrane contactor technology has shown great potential to be applied and utilised by industry to deal with post-and pre-combustion of CO_(2).A systematic review of the literature has been conducted to analyse and assess CO_(2) removal using membrane contactors for capturing techniques in industrial processes.The review began with a total of 2650 papers,which were obtained from three major databases,and then were excluded down to a final number of 525 papers following a defined set of criteria.The results showed that the use of hollow fibre membranes have demonstrated popularity,as well as the use of amine solvents for CO_(2) removal.This current systematic review in CO_(2) removal and capture is an important milestone in the synthesis of up to date research with the potential to serve as a benchmark databank for further research in similar areas of work.This study provides the first systematic enquiry in the evidence to research further sustainable methods to capture and separate CO_(2).展开更多
2015年,单个病例数据系统评价/Meta分析优先报告条目(Preferred Reporting Items for a Systematic Review and Meta-analysis of Individual Participant Data,PRISMA-IPD)声明的推出对单个病例数据系统评价/Meta分析(Systematic Revie...2015年,单个病例数据系统评价/Meta分析优先报告条目(Preferred Reporting Items for a Systematic Review and Meta-analysis of Individual Participant Data,PRISMA-IPD)声明的推出对单个病例数据系统评价/Meta分析(Systematic Reviews and Metaanalyses of Individual Patient Data)的规范报告将会发挥重要的作用。本文旨在对PRISMA-IPD声明形成的背景、过程及其内容和要求进行介绍。展开更多
系统评价和Meta分析优先报告的条目(Preferred Reporting Items for Systematic Review and Meta-analysis,PRISMA)系列报告规范的陆续发表在一定程度上规范了系统评价/Meta分析报告,本文主要介绍PRISMA-CI的报告条目,并对其进行解读,...系统评价和Meta分析优先报告的条目(Preferred Reporting Items for Systematic Review and Meta-analysis,PRISMA)系列报告规范的陆续发表在一定程度上规范了系统评价/Meta分析报告,本文主要介绍PRISMA-CI的报告条目,并对其进行解读,期望为国内研究人员报告复杂干预性系统评价和Meta分析提供借鉴和参考。展开更多
目的评价已发表的中医药系统评价再评价(overview of systematic reviews,Overviews)报告的规范性。方法计算机检索中国知网、中国生物医学文献数据库及万方数据库,收集已发表的中医药相关的Overviews,检索时限为建库至2018年4月23日。...目的评价已发表的中医药系统评价再评价(overview of systematic reviews,Overviews)报告的规范性。方法计算机检索中国知网、中国生物医学文献数据库及万方数据库,收集已发表的中医药相关的Overviews,检索时限为建库至2018年4月23日。应用Overviews优先报告条目(preferred reporting items for overview of systematic reviews,PRIO-harms)评价其报告的规范性。结果检索共获得题录968条,经筛选后共纳入21篇中医药相关的Overviews。纳入的Overviews包含的系统评价/Meta数目为5～69个,合计纳入362个系统评价。PRIO-harms报告规范评估结果显示条目5 "计划书与注册"(0/21)、条目10 "原始研究的补充检索"(0/21)、条目14 "Meta偏倚"(0/21)、条目18 "重复"(0/21)被完全忽视,完全报告占比最高的为条目7 "信息来源"(8/21),有38%。其余条目,尤其在涉及利害关系的条目中多为部分报告。结论中医药Overviews对不利指标及利害关系报告不明确,整体报告规范有待提高。建议参照PRIO-harms条目进行报告,以提高报告的完整性和透明度。展开更多
基金Supported by Health Commission of Hubei Province,China No.WJ2019M077 and No.WJ2019H227Natural Science Foundation of Hubei Province,China No.2019CFB286and Science and Technology Bureau of Shihezi,China No.2019ZH11.
文摘BACKGROUND Hepatocellular carcinoma is the most common primary liver malignancy.From the results of previous studies,Liver Imaging Reporting and Data System(LIRADS)on contrast-enhanced ultrasound(CEUS)has shown satisfactory diagnostic value.However,a unified conclusion on the interobserver stability of this innovative ultrasound imaging has not been determined.The present metaanalysis examined the interobserver agreement of CEUS LI-RADS to provide some reference for subsequent related research.AIM To evaluate the interobserver agreement of LI-RADS on CEUS and analyze the sources of heterogeneity between studies.METHODS Relevant papers on the subject of interobserver agreement on CEUS LI-RADS published before March 1,2020 in China and other countries were analyzed.The studies were filtered,and the diagnostic criteria were evaluated.The selected references were analyzed using the“meta”and“metafor”packages of R software version 3.6.2.RESULTS Eight studies were ultimately included in the present analysis.Meta-analysis results revealed that the summary Kappa value of included studies was 0.76[95%confidence interval,0.67-0.83],which shows substantial agreement.Higgins I2 statistics also confirmed the substantial heterogeneity(I2=91.30%,95%confidence interval,85.3%-94.9%,P<0.01).Meta-regression identified the variables,including the method of patient enrollment,method of consistency testing,and patient race,which explained the substantial study heterogeneity.CONCLUSION CEUS LI-RADS demonstrated overall substantial interobserver agreement,but heterogeneous results between studies were also obvious.Further clinical investigations should consider a modified recommendation about the experimental design.
文摘With fossil fuel being the major source of energy,CO_(2) emission levels need to be reduced to a minimal amount namely from anthropogenic sources.Energy consumption is expected to rise by 48%in the next 30 years,and global warming is becoming an alarming issue which needs to be addressed on a thorough technical basis.Nonetheless,exploring CO_(2) capture using membrane contactor technology has shown great potential to be applied and utilised by industry to deal with post-and pre-combustion of CO_(2).A systematic review of the literature has been conducted to analyse and assess CO_(2) removal using membrane contactors for capturing techniques in industrial processes.The review began with a total of 2650 papers,which were obtained from three major databases,and then were excluded down to a final number of 525 papers following a defined set of criteria.The results showed that the use of hollow fibre membranes have demonstrated popularity,as well as the use of amine solvents for CO_(2) removal.This current systematic review in CO_(2) removal and capture is an important milestone in the synthesis of up to date research with the potential to serve as a benchmark databank for further research in similar areas of work.This study provides the first systematic enquiry in the evidence to research further sustainable methods to capture and separate CO_(2).
文摘2015年,单个病例数据系统评价/Meta分析优先报告条目(Preferred Reporting Items for a Systematic Review and Meta-analysis of Individual Participant Data,PRISMA-IPD)声明的推出对单个病例数据系统评价/Meta分析(Systematic Reviews and Metaanalyses of Individual Patient Data)的规范报告将会发挥重要的作用。本文旨在对PRISMA-IPD声明形成的背景、过程及其内容和要求进行介绍。
文摘系统评价和Meta分析优先报告的条目(Preferred Reporting Items for Systematic Review and Meta-analysis,PRISMA)系列报告规范的陆续发表在一定程度上规范了系统评价/Meta分析报告,本文主要介绍PRISMA-CI的报告条目,并对其进行解读,期望为国内研究人员报告复杂干预性系统评价和Meta分析提供借鉴和参考。
