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基于F-score和二进制灰狼优化的肿瘤基因选择方法
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作者 穆晓霞 郑李婧 《南京师大学报(自然科学版)》 CAS 北大核心 2024年第1期111-120,共10页
针对肿瘤基因数据维度高、噪声多、冗余性高的现状,结合Spearman相关系数改进F-score算法,在此基础上优化二进制灰狼算法,提出了一种基于改进F-score和二进制灰狼算法的肿瘤基因选择算法.首先,考虑特征之间的相关性,计算每个特征的F-sc... 针对肿瘤基因数据维度高、噪声多、冗余性高的现状,结合Spearman相关系数改进F-score算法,在此基础上优化二进制灰狼算法,提出了一种基于改进F-score和二进制灰狼算法的肿瘤基因选择算法.首先,考虑特征之间的相关性,计算每个特征的F-score值和特征之间的Spearman相关系数的绝对值;然后,计算权重系数得出各个特征的权重值,依据重要性进行排序,选出初选特征子集;最后,通过收敛因子的衰减曲线和初始化方法优化二进制灰狼算法,调整全局搜索和局部搜索所占比例,增强全局搜索能力并提高局部搜索速度,有效节省时间开销,提升特征选择的分类性能和效率,得到最优特征子集.在9个肿瘤基因数据集上测试所提算法,在分类准确率和筛选特征数目两个指标上进行仿真实验,并与4种其他算法进行对比,实验结果证明所提算法表现良好,可有效降低基因数据维度,并具有较好的分类精度. 展开更多
关键词 肿瘤基因 Fisher-score Spearman 相关系数 二进制灰狼优化算法 特征选择
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基于SCORE-TCM的中医药团体标准抽样评价方案设计
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作者 宗星煜 李慧珍 +13 位作者 赵学尧 程瑾瑞 李军 王丁熠 林甲昊 陈琳 王晶亚 梁宁 张海力 王梦琪 车前子 王丽颖 王燕平 史楠楠 《中国中医基础医学杂志》 CAS CSCD 2024年第1期66-70,共5页
目前,各社会团体积极参与中医药标准的制定和发布,特别是“十四五”以来,中医药团体标准化工作更是迎来了提质增效的关键阶段。深入评估社会团体发布的中医药标准质量,是推进中医药团体标准工作的关键环节和重点任务。前期已研制并形成... 目前,各社会团体积极参与中医药标准的制定和发布,特别是“十四五”以来,中医药团体标准化工作更是迎来了提质增效的关键阶段。深入评估社会团体发布的中医药标准质量,是推进中医药团体标准工作的关键环节和重点任务。前期已研制并形成了中医药团体标准评价体系(System of Consortium Standards Rating and Evaluation of Traditional Chinese Medicine, SCORETCM)。在上述背景下,本研究通过专家共识法,设计了一套基于SCORE-TCM的中医药团体标准抽样评价方案,应用场景为对于特定社会团体发布的标准,或各团体发布的特定技术类别的标准进行快速评估。该方案涵盖了标准抽样、材料收集、标准评价、结果解读的完整流程,为中医药团体标准的抽样评价工作提供了参考方案。 展开更多
关键词 中医药 团体标准 抽样 中医药团体标准评价体系 评价方案
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超前镇痛对阻生牙微创拔牙术后镇痛效果及MDAS评分的影响
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作者 朱承章 万宏坤 《中国口腔颌面外科杂志》 CAS 2024年第1期49-52,共4页
目的:探讨超前镇痛对阻生牙微创拔牙术后镇痛效果及改良牙科焦虑量表(Modified Dental Anxiety Scale,MDAS)评分的影响。方法:选择2021年7月—2022年5月南通市如东中医院收治的阻生牙患者100例,采用随机数字表法分为试验组(微创拔牙术... 目的:探讨超前镇痛对阻生牙微创拔牙术后镇痛效果及改良牙科焦虑量表(Modified Dental Anxiety Scale,MDAS)评分的影响。方法:选择2021年7月—2022年5月南通市如东中医院收治的阻生牙患者100例,采用随机数字表法分为试验组(微创拔牙术联合超前镇痛治疗,n=50)和对照组(微创拔牙术,n=50)。比较2组患者手术时间、术中血压和心率、术后疼痛视觉模拟量表评分(VAS评分)、术后MDAS评分和不良反应。采用SPSS 22.0软件包对数据进行统计学分析。结果:试验组手术时间显著少于对照组(P<0.05),术后5、10和24 h疼痛VAS评分显著低于对照组(P<0.05);2组治疗后MDAS评分均低于治疗前,且试验组显著低于对照组(P<0.05);2组治疗后不良反应发生率均较低,无显著差异(P>0.05)。结论:超前镇痛对阻生牙微创拔牙术后镇痛效果较好,可改善患者焦虑状况,且不良反应少,值得推广使用。 展开更多
关键词 超前镇痛 微创拔牙术 利多卡因 洛索洛芬片 mdas评分
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中医药团体标准评价体系(SCORE-TCM)解读
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作者 宗星煜 王丁熠 +15 位作者 王丽颖 赵学尧 林甲昊 刘斌 虞雪云 郭旸 梁宁 车前子 蒋寅 张海力 龚照元 李安 王巍力 李慧珍 史楠楠 王燕平 《中国中医基础医学杂志》 CAS CSCD 2024年第4期622-626,共5页
本文全面解读了中医药团体标准评价体系(System of Consortium Standards Rating and Evaluation of Traditional Chinese Medicine,SCORE-TCM)。SCORE-TCM是结合定性与定量评价,全面评估中医药团体标准在制定主体、文本编写、技术内容... 本文全面解读了中医药团体标准评价体系(System of Consortium Standards Rating and Evaluation of Traditional Chinese Medicine,SCORE-TCM)。SCORE-TCM是结合定性与定量评价,全面评估中医药团体标准在制定主体、文本编写、技术内容、推广应用和实施效益等几方面特征的综合评价工具。文中详述了SCORE-TCM的构建目的、定义和构建过程,解释了评价指标体系中的各项指标,并对每项指标的评价材料进行介绍。本文旨在帮助中医药团体标准的制定者、第三方评价机构和其他相关方更好地理解SCORE-TCM各评价条目的含义,更有效地运用于中医药团体标准的自评价或第三方评价,SCORE-TCM将为《中医药团体标准管理办法》的贯彻实施,以及中医药团体标准的高质量发展提供技术支持。 展开更多
关键词 中医药 团体标准 score-TCM 评价工具 解读
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Gustave Roussy Immune Score——结直肠癌患者的新型预后评分
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作者 韦珊珊 胡文蔚 耿一婷 《临床肿瘤学杂志》 CAS 2024年第1期43-49,共7页
目的探讨Gustave Roussy Immune Score(GRIm评分)在结直肠癌(CRC)根治术后患者预后评估中的价值。方法本研究共纳入2004年6月至2019年8月271例CRC根治术后患者。分析GRIm评分与CRC临床病理特征的关系。采用Kaplan-Meier法绘制CRC患者无... 目的探讨Gustave Roussy Immune Score(GRIm评分)在结直肠癌(CRC)根治术后患者预后评估中的价值。方法本研究共纳入2004年6月至2019年8月271例CRC根治术后患者。分析GRIm评分与CRC临床病理特征的关系。采用Kaplan-Meier法绘制CRC患者无病生存时间(DFS)曲线,生存差异行Log-rank检验;Cox风险比例回归模型分析影响CRC患者预后的因素;校准曲线和受试者工作特征(ROC)曲线检验基于GRIm评分的列线图的预测效能。结果GRIm评分与性别、肿瘤部位、神经侵犯、N分期、美国癌症联合委员会(AJCC)分期、白蛋白(ALB)评分和乳酸脱氢酶(LDH)评分有关(P<0.05);GRIm简化评分与肿瘤部位、肿瘤直径、癌栓、ALB评分和LDH评分有关(P<0.05)。Cox风险比例回归模型显示,GRIm评分是影响CRC患者DFS的独立因素(HR=2.546,95%CI:1.644~3.943,P<0.05)。包括GRIm评分的列线图对CRC患者DFS的预测能力优于第8版AJCC分期系统。结论GRIm评分是影响CRC患者DFS的独立因素,基于GRIm评分的列线图可以帮助临床医师有效评估CRC患者的预后,制定个体化治疗方案。 展开更多
关键词 结直肠癌 GRIm评分 列线图 预后
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Garg incontinence scores: New scoring system on the horizon to evaluate fecal incontinence. Will it make a difference?
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作者 Petr Tsarkov Inna Tulina +2 位作者 Parvez Sheikh Darya D Shlyk Pankaj Garg 《World Journal of Gastroenterology》 SCIE CAS 2024年第3期204-210,共7页
The main aim of this opinion review is to comment on the recent article published by Garg et al in the World Journal of Gastroenterology 2023;29:4593–4603.The authors in the published article developed a new scoring ... The main aim of this opinion review is to comment on the recent article published by Garg et al in the World Journal of Gastroenterology 2023;29:4593–4603.The authors in the published article developed a new scoring system,Garg incon-tinence scores(GIS),for fecal incontinence(FI).FI is a chronic debilitating disease that has a severe negative impact on the quality of life of the patients.Rome IV criteria define FI as multiple episodes of solid or liquid stool passed into the clothes at least twice a month.The associated social stigmatization often leads to significant under-reporting of the condition,which further impairs management.An important point is that the complexity and vagueness of the disease make it difficult for the patients to properly define and report the magnitude of the problem to their physicians.Due to this,the management becomes even more difficult.This issue is resolved up to a considerable extent by a scoring ques-tionnaire.There were several scoring systems in use for the last three decades.The prominent of them were the Cleveland Clinic scoring system or the Wexner scoring system,St.Marks Hospital or Vaizey’s scores,and the FI severity index.However,there were several shortcomings in these scoring systems.In the opinion review,we tried to analyze the strength of GIS and compare it to the existing scoring systems.The main pitfalls in the existing scoring systems were that most of them gave equal weightage to different types of FI(solid,liquid,flatus,etc.),were not comprehensive,and took only the surgeon’s perception of FI into view.In GIS,almost all shortcomings of previous scoring systems had been addressed:different weights were assigned to different types of FI by a robust statistical methodology;the scoring system was made comprehensive by including all types of FI that were previously omitted(urge,stress and mucus FI)and gave priority to patients’rather than the physicians’perceptions while developing the scoring system.Due to this,GIS indeed looked like a paradigm shift in the evaluation of FI.However,it is too early to conclude this,as GIS needs to be validated for accuracy and simplicity in future studies. 展开更多
关键词 Fecal incontinence Scoring system URGE Stress Flatus
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Are we ready to use new endoscopic scores for ulcerative colitis?
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作者 Rodrigo Quera Paulina Núñez F 《World Journal of Gastroenterology》 SCIE CAS 2024年第10期1466-1469,共4页
For ulcerative colitis(UC),the variability in inflammatory activity along the colon poses a challenge in management.The focus on achieving endoscopic healing in UC is evident,where the UC Endoscopic Index of Severity ... For ulcerative colitis(UC),the variability in inflammatory activity along the colon poses a challenge in management.The focus on achieving endoscopic healing in UC is evident,where the UC Endoscopic Index of Severity and Mayo Endoscopic Subscore are commonly used for evaluation.However,these indices primarily consider the most severely affected region.Liu et al recent study validates the Toronto Inflammatory Bowel Disease Global Endoscopic Reporting(TIGER)score offering a comprehensive assessment of inflammatory activity across diverse segments of the colon and rectum and a reliable index correlating strongly with UC Endoscopic Index of Severity and moderately with Mayo Endoscopic Subscore(MES).Despite recommendation,certain aspects warrant further invest-igation.Fecal calprotectin,an intermediate target,correlates with TIGER and should be explored.Determining TIGER scores defining endoscopic remission and response,evaluating agreement with histological activity,and assessing inter-endoscopist agreement for TIGER require scrutiny.Exploring the correlation between TIGER and intestinal ultrasound,akin to MES,adds value. 展开更多
关键词 Ulcerative colitis SIGMOIDOSCOPY COLONOSCOPY score index
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Role of albumin-bilirubin score in non-malignant liver disease
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作者 Shi-Xue Xu Fan Yang +2 位作者 Nan Ge Jin-Tao Guo Si-Yu Sun 《World Journal of Gastroenterology》 SCIE CAS 2024年第9期999-1004,共6页
The albumin-bilirubin(ALBI)score,which was proposed to assess the prognosis of patients with hepatocellular carcinoma,has gradually been extended to other liver diseases in recent years,including primary biliary chola... The albumin-bilirubin(ALBI)score,which was proposed to assess the prognosis of patients with hepatocellular carcinoma,has gradually been extended to other liver diseases in recent years,including primary biliary cholangitis,liver cirrhosis,hepatitis,liver transplantation,and liver injury.The ALBI score is often compared with classical scores such as the Child-Pugh and model for end-stage liver disease scores or other noninvasive prediction models.It is widely employed because of its immunity to subjective evaluation indicators and ease of obtaining detection indicators.An increasing number of studies have confirmed that it is highly accurate for assessing the prognosis of patients with chronic liver disease;additionally,it has demonstrated good predictive performance for outcomes beyond survival in patients with liver diseases,such as decompensation events.This article presents a review of the application of ALBI scores in various non-malignant liver diseases. 展开更多
关键词 Albumin-bilirubin score Liver cirrhosis Primary biliary cholangitis Hepatitis Liver transplantation Liver injury
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Current status of magnetic resonance imaging radiomics in hepatocellular carcinoma:A quantitative review with Radiomics Quality Score
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作者 Valentina Brancato Marco Cerrone +2 位作者 Nunzia Garbino Marco Salvatore Carlo Cavaliere 《World Journal of Gastroenterology》 SCIE CAS 2024年第4期381-417,共37页
BACKGROUND Radiomics is a promising tool that may increase the value of magnetic resonance imaging(MRI)for different tasks related to the management of patients with hepatocellular carcinoma(HCC).However,its implement... BACKGROUND Radiomics is a promising tool that may increase the value of magnetic resonance imaging(MRI)for different tasks related to the management of patients with hepatocellular carcinoma(HCC).However,its implementation in clinical practice is still far,with many issues related to the methodological quality of radiomic studies.AIM To systematically review the current status of MRI radiomic studies concerning HCC using the Radiomics Quality Score(RQS).METHODS A systematic literature search of PubMed,Google Scholar,and Web of Science databases was performed to identify original articles focusing on the use of MRI radiomics for HCC management published between 2017 and 2023.The methodological quality of radiomic studies was assessed using the RQS tool.Spearman’s correlation(ρ)analysis was performed to explore if RQS was correlated with journal metrics and characteristics of the studies.The level of statistical significance was set at P<0.05.RESULTS One hundred and twenty-seven articles were included,of which 43 focused on HCC prognosis,39 on prediction of pathological findings,16 on prediction of the expression of molecular markers outcomes,18 had a diagnostic purpose,and 11 had multiple purposes.The mean RQS was 8±6.22,and the corresponding percentage was 24.15%±15.25%(ranging from 0.0% to 58.33%).RQS was positively correlated with journal impact factor(IF;ρ=0.36,P=2.98×10^(-5)),5-years IF(ρ=0.33,P=1.56×10^(-4)),number of patients included in the study(ρ=0.51,P<9.37×10^(-10))and number of radiomics features extracted in the study(ρ=0.59,P<4.59×10^(-13)),and time of publication(ρ=-0.23,P<0.0072).CONCLUSION Although MRI radiomics in HCC represents a promising tool to develop adequate personalized treatment as a noninvasive approach in HCC patients,our study revealed that studies in this field still lack the quality required to allow its introduction into clinical practice. 展开更多
关键词 Hepatocellular carcinoma Systematic review Magnetic resonance imaging Radiomics Radiomics quality score
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Usefulness of the Surgical Apgar Score to Predict the Occurrence of Major Complications in the Early Post-Operative Period of Major Surgeries: Experience of Two Second-Category Hospitals in Cameroon
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作者 Charles Emmanuel Toussaint Binam Bikoi Francis Ateba Ndongo +2 位作者 Serge Vivier Nga Nomo Édouard Léa Mekoui Ze Fidèle Binam 《Open Journal of Anesthesiology》 2024年第3期51-65,共15页
Objective: The Surgical Apgar Score (SAS) is a tool for intraoperative stratification of the risk of serious complications in the early postoperative period. It varies from 0 to 10 points divided into three risk categ... Objective: The Surgical Apgar Score (SAS) is a tool for intraoperative stratification of the risk of serious complications in the early postoperative period. It varies from 0 to 10 points divided into three risk categories (0 to 4 high, 5 to 7 moderate, 8 to 10 low). The aim of the study was to evaluate its relevance in predicting the appearance of these complications. Material and methods: This descriptive and analytical study was carried out at the “Laquintinie” Hospital in Douala and at the Central Hospital in Yaounde, Cameroon. The main data were collected on a population of patients over 18 years old and recorded on a survey form. They consisted of variables of main interest and exposure variables. Univariate and multivariate statistical analysis using top-down logistic regression models made it possible to evaluate the association of each variable of main interest and each exposure variable. The association was significant at P Results: Of the 88 patients studied, the SAS was 3 hours. In multivariate, this link persisted only and strongly for the SAS OR (IC) 0.1 (0.1 - 0.2) and p = 000. Conclusion: The study found a specific and powerful link between the SAS score < 4 and the occurrence of complications in the early postoperative period, in favor of its relevance in predicting them. 展开更多
关键词 Early Postoperative Complications Major Surgeries Surgical Apgar score
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Preoperative albumin-bilirubin score and liver resection percentage determine postoperative liver regeneration after partial hepatectomy
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作者 Kazuhiro Takahashi Masahiko Gosho +11 位作者 Yoshihiro Miyazaki Hiromitsu Nakahashi Osamu Shimomura Kinji Furuya Manami Doi Yohei Owada Koichi Ogawa Yusuke Ohara Yoshimasa Akashi Tsuyoshi Enomoto Shinji Hashimoto Tatsuya Oda 《World Journal of Gastroenterology》 SCIE CAS 2024年第14期2006-2017,共12页
BACKGROUND The success of liver resection relies on the ability of the remnant liver to regenerate.Most of the knowledge regarding the pathophysiological basis of liver regeneration comes from rodent studies,and data ... BACKGROUND The success of liver resection relies on the ability of the remnant liver to regenerate.Most of the knowledge regarding the pathophysiological basis of liver regeneration comes from rodent studies,and data on humans are scarce.Additionally,there is limited knowledge about the preoperative factors that influence postoperative regeneration.AIM To quantify postoperative remnant liver volume by the latest volumetric software and investigate perioperative factors that affect posthepatectomy liver regenera-tion.METHODS A total of 268 patients who received partial hepatectomy were enrolled.Patients were grouped into right hepatectomy/trisegmentectomy(RH/Tri),left hepa-tectomy(LH),segmentectomy(Seg),and subsegmentectomy/nonanatomical hepatectomy(Sub/Non)groups.The regeneration index(RI)and late rege-neration rate were defined as(postoperative liver volume)/[total functional liver volume(TFLV)]×100 and(RI at 6-months-RI at 3-months)/RI at 6-months,respectively.The lower 25th percentile of RI and the higher 25th percentile of late regeneration rate in each group were defined as“low regeneration”and“delayed regeneration”.“Restoration to the original size”was defined as regeneration of the liver volume by more than 90%of the TFLV at 12 months postsurgery.RESULTS The numbers of patients in the RH/Tri,LH,Seg,and Sub/Non groups were 41,53,99 and 75,respectively.The RI plateaued at 3 months in the LH,Seg,and Sub/Non groups,whereas the RI increased until 12 months in the RH/Tri group.According to our multivariate analysis,the preoperative albumin-bilirubin(ALBI)score was an independent factor for low regeneration at 3 months[odds ratio(OR)95%CI=2.80(1.17-6.69),P=0.02;per 1.0 up]and 12 months[OR=2.27(1.01-5.09),P=0.04;per 1.0 up].Multivariate analysis revealed that only liver resection percentage[OR=1.03(1.00-1.05),P=0.04]was associated with delayed regeneration.Furthermore,multivariate analysis demonstrated that the preoperative ALBI score[OR=2.63(1.00-1.05),P=0.02;per 1.0 up]and liver resection percentage[OR=1.02(1.00-1.05),P=0.04;per 1.0 up]were found to be independent risk factors associated with volume restoration failure.CONCLUSION Liver regeneration posthepatectomy was determined by the resection percentage and preoperative ALBI score.This knowledge helps surgeons decide the timing and type of rehepatectomy for recurrent cases. 展开更多
关键词 Liver regeneration Albumin-bilirubin score Liver resection percentage Partial hepatectomy Human Regeneration index
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Clinical effect of laparoscopic radical resection of colorectal cancer based on propensity score matching
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作者 Yang Liu Xian-Xue Wang +3 位作者 Yu-Lin Li Wen-Tao He Hong Li Hua Chen 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第1期124-133,共10页
BACKGROUND The incidence of colorectal cancer(CRC)is increasing annually.Laparoscopic radical resection of CRC is a minimally invasive procedure preferred in clinical practice.AIM To investigate the clinical effect of... BACKGROUND The incidence of colorectal cancer(CRC)is increasing annually.Laparoscopic radical resection of CRC is a minimally invasive procedure preferred in clinical practice.AIM To investigate the clinical effect of laparoscopic radical resection of CRC on the basis of propensity score matching(PSM).METHODS The clinical data of 100 patients who received inpatient treatment for CRC at Changde Hospital,Xiangya School of Medicine,Central South University(The First People’s Hospital of Changde City)were analyzed retrospectively.The control group included patients who underwent open surgery(n=43),and those who underwent laparoscopic surgery formed the observation group(n=57).The baseline information of both groups was equipoised using 1×1 PSM.Differences in the perioperative parameters,inflammatory response,immune function,degree of pain,and physical status between the groups were analyzed.RESULTS Thirty patients from both groups were successfully matched.After PSM,baseline data showed no statistically significant differences between the groups:(1)Periop-erative parameters:The observation group had a longer surgery time,less intra-operative blood loss,earlier first ambulation and first anal exhaust times,and shorter gastric tube indwelling time than the control group;(2)Inflammatory response:24 h after surgery,the levels of interleukin-6(IL-6),C-reactive protein(CRP),and tumor necrosis factor-α(TNF-α)between groups were higher than preoperatively.IL-6,CRP,and TNF-αlevels in the observation group were lower than in the control group;(3)Immune function:At 24 h after surgery,counts of CD4-positive T-lymphocytes(CD4+)and CD4+/CD8-positive T-lymphocytes(CD8+)in both groups were lower than those before surgery,whereas CD8+was higher than that before surgery.At 24 h after surgery,both CD4+counts and CD4+/CD8+in the observation group were higher than those in the control group,whereas CD8+counts were lower;(4)Degree of pain:The visual analog scale scores in the observation group were lower than those in the control group at 24 and 72 h after surgery;and(5)Physical status:One month after surgery,the Karnofsky performance score in the observation group was higher than that in the control group.CONCLUSION Laparoscopic radical resection of CRC has significant benefits,such as reducing postoperative pain and postoperative inflammatory response,avoiding excessive immune inhibition,and contributing to postoperative recovery. 展开更多
关键词 Colorectal cancer LAPAROSCOPIC Open surgery Inflammatory reaction Immune function Propensity score
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Diagnostic and prognostic performances of GALAD score in staging and 1-year mortality of hepatocellular carcinoma: A prospective study
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作者 Oraphan Jitpraphawan Witchakorn Ruamtawee +1 位作者 Mala Treewatchareekorn Supatsri Sethasine 《World Journal of Gastroenterology》 SCIE CAS 2024年第17期2343-2353,共11页
BACKGROUND The GALAD score has improved early hepatocellular carcinoma(HCC)detection rate.The role of the GALAD score in staging and predicting tumor characteristics or clinical outcome of HCC remains of particular in... BACKGROUND The GALAD score has improved early hepatocellular carcinoma(HCC)detection rate.The role of the GALAD score in staging and predicting tumor characteristics or clinical outcome of HCC remains of particular interest.AIM To determine the diagnostic/prognostic performances of the GALAD score at various phases of initial diagnosis,tumor features,and 1-year mortality of HCC and compare the performance of the GALAD score with those of other serum biomarkers.METHODS This prospective,diagnostic/prognostic study was conducted among patients with newly diagnosed HCC at the liver center of Vajira Hospital.Eligible patients had HCC staging allocation using the Barcelona Clinic Liver Cancer(BCLC)categorization.Demographics,HCC etiology,and HCC features were recorded.Biomarkers and the GALAD score were obtained at baseline.The performance of the GALAD score and biomarkers were prospectively assessed.RESULTS Exactly 115 individuals were diagnosed with HCC.The GALAD score increased with disease severity.Between BCLC-0/A and BCLC-B/C/D,the GALAD score predicted HCC staging with an area under the curve(AUC)of 0.868(95%CI:0.80–0.93).For identifying the curative HCC,the AUC of GALAD score was significantly higher than that of Alpha-fetoprotein(AFP)(0.753)and Lens culinaris agglutinin-reactive fraction of AFP-L3(0.706),and as good as that of Protein induced by vitamin K absence-II(PIVKA-II)(0.897).For detecting aggressive features,the GALAD score gave an AUC of 0.839(95%CI:0.75–0.92)and significantly outperformed compared to that of AFP(0.761)and AFP-L3(0.697),with a trend of superiority to that of PIVKA-II(0.772).The performance to predict 1-year mortality of GALAD score(AUC:0.711,95%CI:0.60–0.82)was better than that of AFP(0.541)and as good as that of PIVKA-II(0.736).The optimal cutoff value of GALAD score was≥6.83,with a specificity of 72.63%for exhibiting substantial reduction in the 1-year mortality.CONCLUSION The GALAD model can diagnose HCC at the curative stage,including the characteristic of advanced disease,more than that by AFP and AFP-L3,but not PIVKA-II.The GALAD score can be used to predict the 1-year mortality of HCC. 展开更多
关键词 ALPHA-FETOPROTEIN Barcelona clinic liver cancer GALAD score Hepatocellular carcinoma Lens culinaris agglutinin-reactive fraction of alpha-fetoprotein Protein induced by vitamin K absence-II
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Can propensity score matching replace randomized controlled trials?
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作者 Matthias Yi Quan Liau En Qi Toh +2 位作者 Shamir Muhamed Surya Varma Selvakumar Vishalkumar Girishchandra Shelat 《World Journal of Methodology》 2024年第1期58-70,共13页
Randomized controlled trials(RCTs)have long been recognized as the gold standard for establishing causal relationships in clinical research.Despite that,various limitations of RCTs prevent its widespread implementatio... Randomized controlled trials(RCTs)have long been recognized as the gold standard for establishing causal relationships in clinical research.Despite that,various limitations of RCTs prevent its widespread implementation,ranging from the ethicality of withholding potentially-lifesaving treatment from a group to relatively poor external validity due to stringent inclusion criteria,amongst others.However,with the introduction of propensity score matching(PSM)as a retrospective statistical tool,new frontiers in establishing causation in clinical research were opened up.PSM predicts treatment effects using observational data from existing sources such as registries or electronic health records,to create a matched sample of participants who received or did not receive the intervention based on their propensity scores,which takes into account characteristics such as age,gender and comorbidities.Given its retrospective nature and its use of observational data from existing sources,PSM circumvents the aforementioned ethical issues faced by RCTs.Majority of RCTs exclude elderly,pregnant women and young children;thus,evidence of therapy efficacy is rarely proven by robust clinical research for this population.On the other hand,by matching study patient characteristics to that of the population of interest,including the elderly,pregnant women and young children,PSM allows for generalization of results to the wider population and hence greatly increases the external validity.Instead of replacing RCTs with PSM,the synergistic integration of PSM into RCTs stands to provide better research outcomes with both methods complementing each other.For example,in an RCT investigating the impact of mannitol on outcomes among participants of the Intensive Blood Pressure Reduction in Acute Cerebral Hemorrhage Trial,the baseline characteristics of comorbidities and current medications between treatment and control arms were significantly different despite the randomization protocol.Therefore,PSM was incorporated in its analysis to create samples from the treatment and control arms that were matched in terms of these baseline characteristics,thus providing a fairer comparison for the impact of mannitol.This literature review reports the applications,advantages,and considerations of using PSM with RCTs,illustrating its utility in refining randomization,improving external validity,and accounting for non-compliance to protocol.Future research should consider integrating the use of PSM in RCTs to better generalize outcomes to target populations for clinical practice and thereby benefit a wider range of patients,while maintaining the robustness of randomization offered by RCTs. 展开更多
关键词 Propensity score matching Randomized controlled trials RANDOMIZATION Clinical practice Validity ETHICS
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Smaller & Smarter: Score-Driven Network Chaining of Smaller Language Models
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作者 Gunika Dhingra Siddansh Chawla +1 位作者 Vijay K. Madisetti Arshdeep Bahga 《Journal of Software Engineering and Applications》 2024年第1期23-42,共20页
With the continuous evolution and expanding applications of Large Language Models (LLMs), there has been a noticeable surge in the size of the emerging models. It is not solely the growth in model size, primarily meas... With the continuous evolution and expanding applications of Large Language Models (LLMs), there has been a noticeable surge in the size of the emerging models. It is not solely the growth in model size, primarily measured by the number of parameters, but also the subsequent escalation in computational demands, hardware and software prerequisites for training, all culminating in a substantial financial investment as well. In this paper, we present novel techniques like supervision, parallelization, and scoring functions to get better results out of chains of smaller language models, rather than relying solely on scaling up model size. Firstly, we propose an approach to quantify the performance of a Smaller Language Models (SLM) by introducing a corresponding supervisor model that incrementally corrects the encountered errors. Secondly, we propose an approach to utilize two smaller language models (in a network) performing the same task and retrieving the best relevant output from the two, ensuring peak performance for a specific task. Experimental evaluations establish the quantitative accuracy improvements on financial reasoning and arithmetic calculation tasks from utilizing techniques like supervisor models (in a network of model scenario), threshold scoring and parallel processing over a baseline study. 展开更多
关键词 Large Language Models (LLMs) Smaller Language Models (SLMs) FINANCE NETWORKING Supervisor Model Scoring Function
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Work Ability Index and Work Ability Score: A Comparation between both Scores in a Persistent COVID-19 Cohort
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作者 Carmen Muñoz-Ruiperez Diego Alvaredo Rodrigo +3 位作者 Daniel Arroyo-Sánchez Juan Francisco Álvarez Zarallo Ignacio Sánchez-Arcilla Conejo José Lorenzo Bravo Grande 《Occupational Diseases and Environmental Medicine》 2024年第1期49-57,共9页
Aims: The present study aims to compare the assessment of work ability based on the use of the Work Ability Index (WAI) with another questionnaire base only on the use of WAI’s first item, termed as the “Work Abilit... Aims: The present study aims to compare the assessment of work ability based on the use of the Work Ability Index (WAI) with another questionnaire base only on the use of WAI’s first item, termed as the “Work Ability Score” (WAS). Study design: A cohort of 384 Spanish workers included in a Post COVID-19 condition or persistent COVID-19 multicenter research was utilized. Place and Duration of Study: This cohort was enlisted in four hospitals (Hospital Universitario 12 de Octubre, Madrid;Hospital Universitario Virgen Macarena, Sevilla, Andalucía;Hospital Universitario Gregorio Marañón, Madrid and Complejo Asistencial Universitario de Salamanca, Castilla y León), since 2021 until 2022. Methodology: 384 Spanish workers (176 men and 208 women;aged 20 to 70 years) with Post COVID-19 condition or persistent COVID-19 were included. Descriptive analysis of primary scores was conducted. Given the non-normal distribution of data, the Mann-Whitney and Kruskal-Wallis tests were employed. Spearman and Kendall correlations were employed to assess the relationship between WAI and WAS, also used weighted Kappa to estimate the degree agreement between WAI and WAS. Logistic regression models were utilized to study determinants influencing WAI and WAS, categorized as poor or moderate. Results: WAI had an average score of 32.98 (SD = 10.28), whereas WAS had an average of 5.95 (SD = 2.77). Significant differences were observed in both WAI and WAS across the same variables. Strong and statistically significant correlations were evident between WAI and WAS (rs = 0.83, p < 0.001). All the variables used in the logistic regression model (gender, the sector employment, and previous chronic diseases) were statistically significant in both questionnaires. Conclusion: WAS questionnaire could be used as a tool for reliable assessment of work ability among Spanish workers with Post COVID-19 condition or Persistent CO-VID-19. 展开更多
关键词 Work Ability Index Work Ability score Post COVID-19 Condition Occupational Health Occupational Medicine
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Evaluation of the Neurodevelopmental Outcome of Toddlers with Spinal Dysraphism after Surgical Repair Using ASQ-3 Scores
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作者 Mujahid Imam Fawaz Eljili Marhoom +4 位作者 Sawsan Aldeaf Ali Awad Ahmed Zidan Mohamed Mustafa Ahmed Sanna Taha 《Open Journal of Modern Neurosurgery》 2024年第1期14-29,共16页
Background: Spinal dysraphism represents a wide spectrum of congenital abnormalities of the spine. Myelomeningocele is considered the most common malformation and the most common we saw in our community, with its morb... Background: Spinal dysraphism represents a wide spectrum of congenital abnormalities of the spine. Myelomeningocele is considered the most common malformation and the most common we saw in our community, with its morbidity problems seen commonly in the postoperative period. ASQ-3<sup>TM</sup> Scores are the ages and stages questionnaire, third edition, and represent a tool to assess the development progress, especially in toddlers. Objectives: Evaluation of neurodevelopmental outcome among Sudanese toddlers with spinal dysraphism after surgical closure with or without a VP shunt using ASQ-3<sup>TM</sup> Scores. Methodology: This is a retrospective hospital-based study of 84 patients who underwent myelomeningocele repair at the National Center for Neurological Sciences (NCNS) during the period from 2017 up to 2019. Data were collected through a constructed questionnaire, including ASQ-3<sup>TM</sup> Scores. Data were processed and analyzed using the Statistical Package for Social Science (SPSS) computer program. Version 25. Results: 84 patients were included in this study;all patients were diagnosed with spinal dysraphism. Out of them, 51 (60.7%) were 2 years old, 33 (39.3%) were 3 years old, 45 (53.6%) were male, 45 (53.6%) of patients mothers attended ANC irregularly, and 54 (64.3%) their mothers didn’t receive folate supplements. 44 (52.3%) of patients underwent MMC repair only, while 40 (47.7%) underwent MMC repair and VP shunt. The commonest postoperative complication was infection, reported in 12 (14.3%) of patients, followed by VP shunt revision in 9 (10.7%) of patients. Neurological assessment showed that the majority of patients need further assessment with a professional, 57 (67.9%) of children don’t walk, run, or climb like other toddlers as their parent’s state;also, half of patients (42, 50%) had medical problems, and 27 (32.1%) of their parent’s state that they do not talk like other toddlers their age. There was a statistically significant association between post-operative complications and communication development, problem-solving development, and personal social development (P value = 0.05), and a statistically significant association was found between age at repair and neurological development (P value = 0.05). Conclusion: The majority of patients had motor deficiency (particularly gross motor) and poor personal and social skills. Age at repair and postoperative complications significantly influenced the neurological development. 展开更多
关键词 Toddlers’ Neurodevelopmental Outcome Myelomeningocele Evaluation ASQ-3 scores Spinal Dysraphasim Neurodevelopmental Outcome
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基于Fisher Score特征选择的电力系统暂态稳定评估方法 被引量:2
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作者 李鹏 董鑫剑 +1 位作者 孟庆伟 陈继明 《电力自动化设备》 EI CSCD 北大核心 2023年第7期117-123,共7页
针对不同电气输入特征与电力系统暂态稳定关联程度不同以及当输入特征受到干扰时评估准确率明显下降的问题,提出一种基于Fisher Score特征选择的电力系统暂态稳定评估方法。设计一种面向电力系统暂态稳定评估二分类问题的样本特征Fisher... 针对不同电气输入特征与电力系统暂态稳定关联程度不同以及当输入特征受到干扰时评估准确率明显下降的问题,提出一种基于Fisher Score特征选择的电力系统暂态稳定评估方法。设计一种面向电力系统暂态稳定评估二分类问题的样本特征Fisher Score值计算方案;通过Fisher Score值排序有效区分重要特征与冗余特征、噪声特征与非噪声特征;将选择的电气特征输入不同机器学习模型中进行训练和评估。新英格兰39节点系统和IEEE 145节点系统的仿真结果表明,所提特征选择方案能有效筛选电力系统暂态稳定评估中重要度高的特征,提升了评估模型的预测性能。 展开更多
关键词 电力系统 暂态稳定评估 特征选择 Fisher score算法
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基于互信息的Fisher Score多标记特征选择 被引量:2
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作者 孙林 张起峰 徐久成 《南京大学学报(自然科学版)》 CAS CSCD 北大核心 2023年第1期55-66,共12页
目前,Fisher Score模型在处理多标记数据时没有考虑样本和整个特征空间之间以及特征和标记之间的关系.提出一种基于互信息的Fisher Score多标记特征选择方法.首先,在多标记决策系统中考虑整个样本空间对特征选择的影响,根据异类样本与... 目前,Fisher Score模型在处理多标记数据时没有考虑样本和整个特征空间之间以及特征和标记之间的关系.提出一种基于互信息的Fisher Score多标记特征选择方法.首先,在多标记决策系统中考虑整个样本空间对特征选择的影响,根据异类样本与同类样本之间的欧式距离定义权重公式,并在特征空间下对标记赋予权重衡量标记的重要程度.然后,基于互信息理论定义特征与每个标记之间的互信息来计算每个特征和每个标记之间的相关度,将特征与标记之间的相关度与该标记所占的权重相结合来定义特征和标记集之间的总相关度.将Fisher得分与总相关度结合,定义每个特征的新的Fisher得分,进而构建多标记Fisher Score模型.最后,设计了一种基于互信息的Fisher Score多标记特征选择算法.在六个多标记数据集上的实验证明,提出的算法与其他算法相比,其四种评价指标都表现良好,分类性能出色. 展开更多
关键词 多标记学习 特征选择 互信息 Fisher score
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基于Fisher score与模糊邻域熵的多标记特征选择算法 被引量:1
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作者 孙林 马天娇 薛占熬 《计算机应用》 CSCD 北大核心 2023年第12期3779-3789,共11页
针对Fisher score未充分考虑特征与标记以及标记之间的相关性,以及一些邻域粗糙集模型容易忽略边界域中知识粒的不确定性,导致算法分类性能偏低等问题,提出一种基于Fisher score与模糊邻域熵的多标记特征选择算法(MLFSF)。首先,利用最... 针对Fisher score未充分考虑特征与标记以及标记之间的相关性,以及一些邻域粗糙集模型容易忽略边界域中知识粒的不确定性,导致算法分类性能偏低等问题,提出一种基于Fisher score与模糊邻域熵的多标记特征选择算法(MLFSF)。首先,利用最大信息系数(MIC)衡量特征与标记之间的关联程度,构建特征与标记关系矩阵;基于修正余弦相似度定义标记关系矩阵,分析标记之间的相关性。其次,给出一种二阶策略获得多个二阶标记关系组,以此重新划分多标记论域;通过增强标记之间的强相关性和削弱标记之间的弱相关性得到每个特征的得分,进而改进Fisher score模型,对多标记数据进行预处理。再次,引入多标记分类间隔,定义自适应邻域半径和邻域类并构造了上、下近似集;在此基础上提出了多标记粗糙隶属度函数,将多标记邻域粗糙集映射到模糊集,基于多标记模糊邻域给出了上、下近似集以及多标记模糊邻域粗糙集模型,由此定义模糊邻域熵和多标记模糊邻域熵,有效度量边界域的不确定性。最后,设计基于二阶标记相关性的多标记Fisher score特征选择算法(MFSLC),从而构建MLFSF。在多标记K近邻(MLKNN)分类器下11个多标记数据集上的实验结果表明,相较于ReliefF多标记特征选择(MFSR)等6种先进算法,MLFSF的平均分类精度(AP)的均值提高了2.47~6.66个百分点;同时,在多数数据集上,MLFSF在5个评价指标上均能取得最优值。 展开更多
关键词 多标记学习 特征选择 Fisher score 多标记模糊邻域粗糙集 模糊邻域熵
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