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Large language models can support generation of standardized discharge summaries – A retrospective study utilizing ChatGPT-4 and electronic health records 大型语言模型可支持生成标准化出院摘要--一项利用 ChatGPT-4 和电子健康记录进行的回顾性研究。
IF 3.7 2区 医学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2024-10-14 DOI: 10.1016/j.ijmedinf.2024.105654

Objective

To evaluate whether psychiatric discharge summaries (DS) generated with ChatGPT-4 from electronic health records (EHR) can match the quality of DS written by psychiatric residents.

Methods

At a psychiatric primary care hospital, we compared 20 inpatient DS, written by residents, to those written with ChatGPT-4 from pseudonymized residents’ notes of the patients’ EHRs and a standardized prompt. 8 blinded psychiatry specialists rated both versions on a custom Likert scale from 1 to 5 across 15 quality subcategories. The primary outcome was the overall rating difference between the two groups. The secondary outcomes were the rating differences at the level of individual question, case, and rater.

Results

Human-written DS were rated significantly higher than AI (mean ratings: human 3.78, AI 3.12, p < 0.05). They surpassed AI significantly in 12/15 questions and 16/20 cases and were favored significantly by 7/8 raters. For “low expected correction effort”, human DS were rated as 67 % favorable, 19 % neutral, and 14 % unfavorable, whereas AI-DS were rated as 22 % favorable, 33 % neutral, and 45 % unfavorable. Hallucinations were present in 40 % of AI-DS, with 37.5 % deemed highly clinically relevant. Minor content mistakes were found in 30 % of AI and 10 % of human DS. Raters correctly identified AI-DS with 81 % sensitivity and 75 % specificity.

Discussion

Overall, AI-DS did not match the quality of resident-written DS but performed similarly in 20% of cases and were rated as favorable for “low expected correction effort” in 22% of cases. AI-DS lacked most in content specificity, ability to distill key case information, and coherence but performed adequately in conciseness, adherence to formalities, relevance of included content, and form.

Conclusion

LLM-written DS show potential as templates for physicians to finalize, potentially saving time in the future.
目的评估使用 ChatGPT-4 从电子健康记录(EHR)中生成的精神科出院摘要(DS)的质量是否能与精神科住院医生撰写的出院摘要相媲美:在一家精神科初级保健医院,我们比较了由住院医师撰写的 20 份住院病人出院摘要,以及使用 ChatGPT-4 从患者电子健康记录的化名住院医师笔记和标准化提示中撰写的出院摘要。8 位双盲精神病学专家采用自定义的李克特量表,从 1 到 5 对 15 个质量子类别对两个版本进行评分。主要结果是两组之间的总体评分差异。次要结果是单个问题、病例和评分者的评分差异:结果:人工撰写的数据集的评分明显高于人工智能(平均评分:人工 3.78,人工智能 3.12,p 讨论):总体而言,人工智能答题系统的质量无法与居民撰写的答题系统相提并论,但在 20% 的案例中表现类似,在 22% 的案例中因 "预期修正工作量低 "而被评为良好。人工智能数据集在内容具体性、提炼关键病例信息的能力和连贯性方面最为欠缺,但在简洁性、遵守格式、所含内容的相关性和形式方面表现良好:LLM编写的DS显示出作为模板供医生最终确定的潜力,将来有可能节省时间。
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引用次数: 0
A systematic review and proposed framework for sustainable learning healthcare systems 可持续学习型医疗保健系统的系统回顾和拟议框架
IF 3.7 2区 医学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2024-10-12 DOI: 10.1016/j.ijmedinf.2024.105652

Background

The healthcare sector is a complex domain that faces challenges in effectively learning from practices and outcome data. The Learning Health System (LHS) has emerged as a potential framework to improve healthcare by promoting continuous learning. However, its adoption remains limited, often involving only a single clinical department or a part of the LHS cycle. There is a need to gain a better understanding of implementing LHS on a larger scale.

Aim

To identify complete implementations of the LHS for providing recommendations into their implementation strategies, success factors, barriers, and outcomes.

Methods

A systematic review was conducted in accordance with the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines using PubMed and Scopus databases. Data from the included papers were thematically categorized into four primary areas: (1) Scale of LHS Implementation; (2) Implementation strategies and the factors that facilitated the implementation of LHS; (3) LHS outcomes; and (4) Barriers /challenges related to the LHS implementation.

Results

We identified 1,279 papers, of which 37 were included in the final analysis. Barriers to implementing LHS included interoperability, data integration, electronic health records (EHRs) challenges, organizational culture, leadership, and regulatory hurdles. Most LHS initiatives lacked discussion on long-term economic sustainability models, and only 16 papers provided objective measurements of performance changes. Drawing from the findings of the included studies, this paper offers recommendations for the effective implementation of the LHS.

Conclusion

The establishment of sustainable LHS necessitates several key components. First, there is a need to develop long-term economic sustainability models. Secondly, governance at the national level should promote common Application Programming Interfaces (APIs) across LHS implementations, communication channels to share tacit knowledge, efficient Institutional Review Board, ethical approval processes, and connect various initiatives currently operating independently. Lastly, the success of LHS relies not only on technological infrastructure but also on the active participation of multidisciplinary teams in decision-making and sharing of tacit knowledge.
背景医疗保健行业是一个复杂的领域,在从实践和结果数据中有效学习方面面临挑战。学习型医疗系统(LHS)已成为通过促进持续学习来改善医疗保健的潜在框架。然而,它的应用仍然有限,往往只涉及单个临床科室或 LHS 周期的一部分。方法根据PRISMA(系统综述和荟萃分析的首选报告项目)指南,使用PubMed和Scopus数据库进行系统综述。纳入论文的数据按主题分为四个主要方面:(1) 本地保健系统的实施规模;(2) 实施策略和促进本地保健系统实施的因素;(3) 本地保健系统的结果;以及 (4) 与本地保健系统实施相关的障碍/挑战。实施 LHS 的障碍包括互操作性、数据整合、电子病历 (EHR) 挑战、组织文化、领导力和监管障碍。大多数 LHS 计划缺乏对长期经济可持续性模式的讨论,只有 16 篇论文提供了对绩效变化的客观测量。根据所纳入研究的结果,本文提出了有效实施长效医疗系统的建议。首先,需要制定长期的经济可持续性模式。其次,国家层面的管理应促进长者健康服务实施的通用应用编程接口(API)、分享隐性知识的交流渠道、高效的机构审查委员会、伦理审批流程,并将目前独立运作的各种倡议联系起来。最后,LHS 的成功不仅有赖于技术基础设施,还有赖于多学科团队积极参与决策和共享隐性知识。
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引用次数: 0
Hospital antimicrobial stewardship team perceptions and usability of a computerized clinical decision support system 医院抗菌药物管理团队对计算机化临床决策支持系统的看法和可用性
IF 3.7 2区 医学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2024-10-12 DOI: 10.1016/j.ijmedinf.2024.105653

Background

Antimicrobial stewardship (AMS) programs aim to optimize antibiotic use through a panel of interventions. The implementation of computerized clinical decision support systems (CDSSs) offers new opportunities for semiautomated antimicrobial review by AMS teams. This study aimed to evaluate the perceived facilitators, barriers and benefits of end-users related to a commercial CDSS recently implemented in a hospital and to assess its usability.

Methods

A mixed-method approach was used among AMS team members nine months after the implementation of the CDSS in a university hospital in northeastern France. A qualitative analysis based on individual semistructured interviews was conducted to collect end-users’ perceptions. A quantitative analysis was performed using the System Usability Scale (SUS).

Results

Eleven AMS team members agreed to participate. The qualitative analysis revealed technical, organizational and human barriers and facilitators of CDSS implementation. Effective collaboration with information technology teams was crucial for ensuring the installation and configuration of the software. CDSS adoption by the AMS team required time, human resources, training, adaptation and a clinical leader. Moreover, the CDSS had to be well designed, user-friendly and provide benefits to AMS activities. The quantitative analysis indicated that the CDSS was a “good” system in terms of perceived ease of use (median SUS score: 77.5/100).

Conclusions

This study shows the value of the studied CDSS to support AMS activities. It reveals barriers, facilitators and benefits to the implementation and adoption of the CDSS. These barriers and facilitators could be considered to facilitate the implementation of the software in other hospitals.
背景抗菌药物监管(AMS)计划旨在通过一系列干预措施优化抗生素的使用。计算机化临床决策支持系统(CDSS)的实施为抗菌药物管理团队进行半自动抗菌药物审查提供了新的机遇。本研究旨在评估最终用户对最近在一家医院实施的商用 CDSS 所感受到的促进因素、障碍和益处,并评估其可用性。方法:在法国东北部的一家大学医院实施 CDSS 九个月后,对 AMS 团队成员采用了混合方法。在个人半结构化访谈的基础上进行了定性分析,以收集最终用户的看法。采用系统可用性量表(SUS)进行了定量分析。定性分析揭示了 CDSS 实施过程中存在的技术、组织和人力方面的障碍和促进因素。与信息技术团队的有效合作对于确保软件的安装和配置至关重要。医疗服务团队采用 CDSS 需要时间、人力资源、培训、调整和临床领导。此外,CDSS 必须设计精良、便于使用,并能为 AMS 的活动带来益处。定量分析结果表明,就易用性而言,CDSS 是一个 "好 "系统(SUS 评分中位数:77.5/100)。它揭示了实施和采用 CDSS 的障碍、促进因素和益处。这些障碍和促进因素可供其他医院在实施该软件时参考。
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引用次数: 0
Development and expert inspections of the user interface for a primary care decision support system 初级保健决策支持系统用户界面的开发和专家检查
IF 3.7 2区 医学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2024-10-11 DOI: 10.1016/j.ijmedinf.2024.105651

Background

General practitioners play a unique key role in diagnosing patients with unclear diseases. Decision support systems in primary care can assist with diagnosis provided that they are efficient and user-friendly.

Objectives

The objective of this study is to develop a high-fidelity prototype of the user interface of a clinical decision support system for primary care, particularly for diagnosis support in unclear diseases, using expert inspections at an early stage of development to ensure a high level of usability.

Methods

The user interface prototype was iteratively developed based on previous research, design principles, and usability guidelines. During the development phase, three usability inspections were carried out by all experts at four-week intervals as heuristic walkthrough. Each inspection consisted of two parts: 1) Task-based inspection 2) Free exploration and evaluation based on usability heuristics. Five domain experts assessed the current status of development.
The tasks in the inspections were based on the task model derived in the requirements analysis: perform data entry, review and discuss results, schedule further diagnostics, refer to specialists and close case.

Results

As a result of this iterative development, a high-fidelity, clickable user interface prototype was created that is able to fulfil all six tasks of our task model. The usability inspections identified a total of 196 usability issues (for all 3 inspections; Part 1: 90 issues, Part 2: 106 issues), ranging in severity from minor to severe. These served the continuous adjustment and improvement of the prototype. All main tasks were completed successfully despite these problems.

Conclusion

Usability inspections through heuristic walkthroughs can support and optimise the development of a user-centred decision support system in order to ensure its suitability for performing relevant tasks.
背景全科医生在诊断不明疾病患者方面发挥着独特的关键作用。本研究的目的是开发一个高保真的基层医疗临床决策支持系统用户界面原型,特别是用于诊断不明确疾病的用户界面原型,在开发的早期阶段使用专家检查以确保高水平的可用性。在开发阶段,所有专家每隔四周进行三次可用性检查,作为启发式演练。每次检查包括两个部分:1)基于任务的检查 2)基于可用性启发式的自由探索和评估。五位领域专家对当前的开发状况进行了评估。检查中的任务是基于需求分析中得出的任务模型:执行数据录入、审查和讨论结果、安排进一步诊断、推荐专家和结案。结果经过反复开发,我们创建了一个高保真、可点击的用户界面原型,它能够完成任务模型中的所有六项任务。可用性检查共发现了 196 个可用性问题(所有 3 次检查;第 1 部分:90 个问题,第 2 部分:106 个问题),严重程度从轻到重不等。这些问题有助于原型的不断调整和改进。结论 通过启发式演练进行可用性检查可以支持和优化以用户为中心的决策支持系统的开发,以确保其适合执行相关任务。
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引用次数: 0
From challenges to opportunities: Digital transformation in hospital-at-home care 从挑战到机遇:医院到家庭护理的数字化转型。
IF 3.7 2区 医学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2024-10-10 DOI: 10.1016/j.ijmedinf.2024.105644

Background

Digital transformation is an ongoing sosio-technological process that can create opportunities in the health sector. However, the current landscape of digital transformation in hospital-at-home care is unknown.

Aim

To describe healthcare providers’ perspectives of digital transformation in hospital-at-home care.

Methods

A total of 25 semi-structured interviews were conducted in September-October 2023 in all Finnish wellbeing services counties (n = 21), the city of Helsinki (n = 1), and private health care providers (n = 3). Snowball sampling was used (N = 46). The data underwent an inductive content analysis.

Result

The analysis revealed four main and 17 generic categories of challenges and opportunities of digital transformation in hospital-at-home care. These challenges and opportunities were related to 1) Health information exchange in and across hospital-at-home care; 2) Management of hospital-at-home care; 3) Logistics in hospital-at-home care planning and delivery; and 4) Digital health interventions in hospital-at-home care delivery.

Conclusions

The challenges and opportunities of digital transformation in the hospital-at-home care is intricately linked to the efficiency of health information exchange, management, logistics, and digital health interventions. Addressing the key areas of improvement in health information exchange can lead to more streamlined patient care processes and improved communication between healthcare professionals and patients. Digital transformation in management and logistics can improve overall efficiency within healthcare systems. Digital health interventions may promote equitable and universal access to high-quality healthcare. Continued focus on health care information infrastructure, in particular interoperability of electronic health records and optimization of information flow, will be essential to realize the full potential of digitalization.
背景:数字化转型是一个持续不断的科技进步过程,可为医疗行业创造机遇。目的:描述医疗服务提供者对医院-家庭护理数字化转型的看法:2023年9月至10月,在芬兰所有福利服务县(n = 21)、赫尔辛基市(n = 1)和私营医疗机构(n = 3)共进行了25次半结构化访谈。采用了滚雪球式抽样(N = 46)。对数据进行了归纳式内容分析:分析揭示了医院-居家护理数字化转型所面临的挑战和机遇的四个主要类别和 17 个通用类别。这些挑战和机遇涉及:1)医院-居家护理中和跨医院-居家护理的健康信息交换;2)医院-居家护理的管理;3)医院-居家护理规划和交付中的物流;4)医院-居家护理交付中的数字健康干预:医院-居家护理数字化转型的挑战和机遇与医疗信息交换、管理、物流和数字医疗干预的效率密切相关。解决健康信息交换中需要改进的关键领域,可以简化患者护理流程,改善医护人员与患者之间的沟通。管理和物流方面的数字化转型可以提高医疗保健系统的整体效率。数字医疗干预措施可促进公平、普遍地获得高质量的医疗服务。继续关注医疗保健信息基础设施,特别是电子健康记录的互操作性和信息流的优化,对于充分发挥数字化的潜力至关重要。
{"title":"From challenges to opportunities: Digital transformation in hospital-at-home care","authors":"","doi":"10.1016/j.ijmedinf.2024.105644","DOIUrl":"10.1016/j.ijmedinf.2024.105644","url":null,"abstract":"<div><h3>Background</h3><div>Digital transformation is an ongoing sosio-technological process that can create opportunities in the health sector. However, the current landscape of digital transformation in hospital-at-home care is unknown.</div></div><div><h3>Aim</h3><div>To describe healthcare providers’ perspectives of digital transformation in hospital-at-home care.</div></div><div><h3>Methods</h3><div>A total of 25 semi-structured interviews were conducted in September-October 2023 in all Finnish wellbeing services counties (n = 21), the city of Helsinki (n = 1), and private health care providers (n = 3). Snowball sampling was used (N = 46). The data underwent an inductive content analysis.</div></div><div><h3>Result</h3><div>The analysis revealed four main and 17 generic categories of challenges and opportunities of digital transformation in hospital-at-home care. These challenges and opportunities were related to 1) Health information exchange in and across hospital-at-home care; 2) Management of hospital-at-home care; 3) Logistics in hospital-at-home care planning and delivery; and 4) Digital health interventions in hospital-at-home care delivery.</div></div><div><h3>Conclusions</h3><div>The challenges and opportunities of digital transformation in the hospital-at-home care is intricately linked to the efficiency of health information exchange, management, logistics, and digital health interventions. Addressing the key areas of improvement in health information exchange can lead to more streamlined patient care processes and improved communication between healthcare professionals and patients. Digital transformation in management and logistics can improve overall efficiency within healthcare systems. Digital health interventions may promote equitable and universal access to high-quality healthcare. Continued focus on health care information infrastructure, in particular interoperability of electronic health records and optimization of information flow, will be essential to realize the full potential of digitalization.</div></div>","PeriodicalId":54950,"journal":{"name":"International Journal of Medical Informatics","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142407212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Barriers, facilitators, and recommendations to increase the use of a clinical decision support tool for managing chronic pain in primary care 在初级保健中增加使用管理慢性疼痛的临床决策支持工具的障碍、促进因素和建议。
IF 3.7 2区 医学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2024-10-10 DOI: 10.1016/j.ijmedinf.2024.105649

Background and Objective

Primary care providers (PCPs) use poorly organized patient information in electronic health records (EHR) within a limited time when treating patients with chronic pain. Clinical decision support (CDS) tools assist PCPs by synthesizing patient information and prompting guideline-concordant treatment decisions. A CDS tool- Chronic Pain OneSheet was developed through a user-centered design process to support PCP’s decision-making for patients with chronic noncancer pain. OneSheet aggregates relevant patient information in one place in the EHR. OneSheet also guides PCPs in completing guideline-recommended opioid risk management tasks, tracking patient treatments, and documenting pain-related symptoms. Our objective was to identify barriers, facilitators, and recommendations to increase OneSheet use for chronic noncancer pain management in primary care.

Methods

We conducted 19 qualitative interviews with PCPs from two academic health systems who had access to OneSheet in their EHR. Interview transcripts were coded to identify common themes using a modified thematic approach.

Results

PCPs identified several barriers to using OneSheet, including limited time to address patient needs associated with multiple chronic conditions, resistance to changing established workflows, and complex OneSheet display. PCPs reported several facilitators to using OneSheet, such as OneSheet’s ability to serve as a hub for chronic pain data, easy access to features that facilitate completing mandatory tasks and improved planning for certain patient visits. PCPs recommended prioritizing access to commonly used features, adding display customization capabilities, and expanding access to patients and other team members to increase OneSheet use.

Conclusion

Our findings highlight the importance of acknowledging the PCP workflow and task load when designing CDS tools. Future CDS tools should balance the extent of information provided with assisting PCPs to fulfill mandatory tasks. Expanding CDS tools to multiple care team members and patients can also lead to higher use by facilitating data entry, leading to more streamlined care delivery.
背景和目的:初级保健提供者(PCP)在治疗慢性疼痛患者时,会在有限的时间内使用电子健康记录(EHR)中组织不良的患者信息。临床决策支持(CDS)工具通过综合患者信息和提示与指南一致的治疗决策来帮助初级保健提供者。我们通过以用户为中心的设计流程开发了一种 CDS 工具--"慢性疼痛 OneSheet",以支持初级保健医生为慢性非癌症疼痛患者做出决策。OneSheet 将患者的相关信息汇总到电子病历的一个地方。OneSheet 还可指导初级保健医生完成指南推荐的阿片类药物风险管理任务、跟踪患者治疗情况并记录疼痛相关症状。我们的目标是找出在初级保健中增加 OneSheet 用于慢性非癌症疼痛管理的障碍、促进因素和建议:我们对来自两个学术医疗系统的初级保健医生进行了 19 次定性访谈,这些初级保健医生在他们的电子病历中使用了 OneSheet。我们对访谈记录进行了编码,以使用修改后的主题方法确定共同主题:结果:初级保健医生指出了使用 OneSheet 的几个障碍,包括解决与多种慢性疾病相关的患者需求的时间有限、改变既定工作流程的阻力以及复杂的 OneSheet 显示。初级保健医生报告了使用 OneSheet 的几个促进因素,例如 OneSheet 能够作为慢性疼痛数据的中心,易于访问的功能可帮助完成强制性任务并改善某些患者就诊计划。初级保健医生建议优先使用常用功能,增加显示自定义功能,并扩大患者和其他团队成员的使用范围,以提高 OneSheet 的使用率:我们的研究结果强调了在设计 CDS 工具时承认初级保健医生工作流程和任务负荷的重要性。未来的 CDS 工具应在提供信息的范围与协助初级保健医生完成强制性任务之间取得平衡。将 CDS 工具扩展到多个护理团队成员和患者也能通过简化数据录入提高使用率,从而使护理服务更加合理化。
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引用次数: 0
Pathologist-level diagnosis of ulcerative colitis inflammatory activity level using an automated histological grading method 使用自动组织学分级法在病理学家层面诊断溃疡性结肠炎的炎症活动水平
IF 3.7 2区 医学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2024-10-09 DOI: 10.1016/j.ijmedinf.2024.105648

Background and Aims

Inflammatory bowel disease (IBD) is a global disease that is evolving with increasing incidence. However, there are few works on computationally assisted diagnosis of IBD based on pathological images. Therefore, based on the UK and Chinese IBD diagnostic guidelines, our study established an artificial intelligence-assisted diagnostic system for histologic grading of inflammatory activity in ulcerative colitis (UC).

Methods

We proposed an efficient deep-learning (DL) method for grading inflammatory activity in whole-slide images (WSIs) of UC pathology. Our model was constructed using 603 UC WSIs from Nanjing Drum Tower Hospital for model train set and internal test set. We collected 212 UC WSIs from Zhujiang Hospital as an external test set. Initially, the pre-trained ResNet50 model on the ImageNet dataset was employed to extract image patch features from UC patients. Subsequently, a multi-instance learning (MIL) approach with embedded self-attention was utilized to aggregate tissue image patch features, representing the entire WSI. Finally, the model was trained based on the aggregated features and WSI annotations provided by senior gastrointestinal pathologists to predict the level of inflammatory activity in UC WSIs.

Results

In the task of distinguishing the presence or absence of inflammatory activity, the Area Under Curve (AUC) value in the internal test set is 0.863 (95% confidence interval [CI] 0.829, 0.898), with a sensitivity of 0.913 (95% [CI] 0.866, 0.961), and specificity of 0.816 (95% [CI] 0.771, 0.861). The AUC in the external test set is 0.947 (95% confidence interval [CI] 0.939, 0.955), with a sensitivity of 0.889 (905% [CI] 0.837, 0.940), and specificity of 0.858 (95% [CI] 0.777, 0.939). For distinguishing different levels of inflammatory activity in UC, the average Macro-AUC in the internal test set and the external test set are 0.827 (95% [CI] 0.803, 0.850) and 0.908 (95% [CI] 0.882, 0.935). the average Micro-AUC in the internal test set and the external test set are 0.816 (95% [CI] 0.792, 0.840) and 0.898 (95% [CI] 0.869, 0.926).

Conclusions

Comparative analysis with diagnoses made by pathologists at different expertise levels revealed that the algorithm reached a proficiency comparable to the pathologist with 5 years of experience. Furthermore, our algorithm performed superior to other MIL algorithms.
背景和目的炎症性肠病(IBD)是一种全球性疾病,其发病率正在不断上升。然而,基于病理图像的 IBD 计算辅助诊断工作却很少。因此,根据英国和中国的 IBD 诊断指南,我们的研究建立了一个人工智能辅助诊断系统,用于对溃疡性结肠炎(UC)的炎症活动进行组织学分级。我们使用南京鼓楼医院的 603 张 UC WSI 图像构建了模型训练集和内部测试集。我们还收集了珠江医院的 212 张 UC WSI 作为外部测试集。最初,我们使用在 ImageNet 数据集上预先训练好的 ResNet50 模型来提取 UC 患者的图像斑块特征。随后,利用具有嵌入式自我关注的多实例学习(MIL)方法来聚合组织图像斑块特征,从而代表整个 WSI。最后,根据聚合特征和资深胃肠道病理学家提供的 WSI 注释对模型进行训练,以预测 UC WSI 的炎症活动水平。结果 在区分是否存在炎症活动的任务中,内部测试集的曲线下面积(AUC)值为 0.863(95% 置信区间 [CI] 0.829,0.898),灵敏度为 0.913(95% [CI] 0.866,0.961),特异性为 0.816(95% [CI] 0.771,0.861)。外部测试集的 AUC 为 0.947(95% 置信区间 [CI] 0.939,0.955),灵敏度为 0.889(905% [CI] 0.837,0.940),特异性为 0.858(95% [CI] 0.777,0.939)。为了区分 UC 中不同程度的炎症活动,内部测试集和外部测试集中的平均宏观 AUC 分别为 0.827 (95% [CI] 0.803, 0.850) 和 0.908 (95% [CI] 0.882, 0.935)。结论与不同专业水平的病理学家的诊断结果进行比较分析后发现,该算法的熟练程度可与拥有 5 年经验的病理学家媲美。此外,我们的算法还优于其他 MIL 算法。
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引用次数: 0
Prediction of pre-eclampsia with machine learning approaches: Leveraging important information from routinely collected data 利用机器学习方法预测先兆子痫:利用日常收集数据中的重要信息。
IF 3.7 2区 医学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2024-10-05 DOI: 10.1016/j.ijmedinf.2024.105645

Background

Globally, pre-eclampsia (PE) is a leading cause of maternal and perinatal morbidity and mortality. PE prediction using routinely collected data has the advantage of being widely applicable, particularly in low-resource settings. Early intervention for high-risk women might reduce PE incidence and related complications. We aimed to replicate our machine learning (ML) published work predicting another maternal condition (gestational diabetes) to (1) predict PE using routine health data, (2) identify the optimal ML model, and (3) compare it with logistic regression approach.

Methods

Data were from a large health service network with 48,250 singleton pregnancies between January 2016 and June 2021. Supervised ML models were employed. Maternal clinical and medical characteristics were the feature variables (predictors), and a 70/30 data split was used for training and testing the model. Predictive performance was assessed using area under the curve (AUC) and calibration plots. Shapley value analysis assessed the contribution of feature variables.

Results

The random forest approach provided excellent discrimination with an AUC of 0.84 (95% CI: 0.82–0.86) and highest prediction accuracy (0.79); however, the calibration curve (slope of 1.21, 95% CI 1.13–1.30) was acceptable only for a threshold of 0.3 or less. The next best approach was extreme gradient boosting, which provided an AUC of 0.77 (95% CI: 0.76–0.79) and well-calibrated (slope of 0.93, 95% CI 0.85–1.01). Logistic regression provided good discrimination performance with an AUC of 0.75 (95% CI: 0.74–0.76) and perfect calibration. Nulliparous, pre-pregnancy body mass index, previous pregnancy with prior PE, maternal age, family history of hypertension, and pre-existing hypertension and diabetes were the top-ranked features in Shapley value analysis.

Conclusion

Two ML models created the highest-performing prediction using routinely collected data to identify women at high risk of PE, with acceptable discrimination. However, to confirm this result and also examine model generalisability, external validation studies are needed in other settings, utilising standardised prognostic factors.
背景:在全球范围内,子痫前期(PE)是孕产妇和围产期发病率和死亡率的主要原因。利用常规收集的数据进行子痫前期预测具有广泛的适用性,尤其是在资源匮乏的环境中。对高危产妇进行早期干预可降低 PE 的发病率和相关并发症。我们的目标是复制我们已发表的预测另一种孕产妇疾病(妊娠糖尿病)的机器学习(ML)工作,(1) 利用常规健康数据预测 PE,(2) 确定最佳 ML 模型,(3) 将其与逻辑回归方法进行比较:数据来自一个大型医疗服务网络,其中包括 2016 年 1 月至 2021 年 6 月期间的 48,250 例单胎妊娠。采用了有监督的 ML 模型。孕产妇的临床和医疗特征是特征变量(预测因子),模型的训练和测试采用 70/30 的数据分配比例。预测性能通过曲线下面积(AUC)和校准图进行评估。沙普利值分析评估了特征变量的贡献:随机森林方法提供了极佳的分辨能力,AUC 为 0.84(95% CI:0.82-0.86),预测准确率最高(0.79);然而,校准曲线(斜率为 1.21,95% CI 为 1.13-1.30)仅在阈值为 0.3 或更低时可以接受。其次是极梯度提升法,其 AUC 为 0.77(95% CI:0.76-0.79),校准良好(斜率为 0.93,95% CI 为 0.85-1.01)。逻辑回归具有良好的分辨性能,AUC 为 0.75(95% CI:0.74-0.76),校准完美。在 Shapley 值分析中,无子宫、孕前体重指数、既往妊娠合并 PE、孕产妇年龄、高血压家族史、既往高血压和糖尿病是排名靠前的特征:结论:利用常规收集的数据识别 PE 高危妇女,两个 ML 模型的预测效果最好,且具有可接受的区分度。不过,为了证实这一结果并检验模型的通用性,还需要在其他环境中利用标准化的预后因素进行外部验证研究。
{"title":"Prediction of pre-eclampsia with machine learning approaches: Leveraging important information from routinely collected data","authors":"","doi":"10.1016/j.ijmedinf.2024.105645","DOIUrl":"10.1016/j.ijmedinf.2024.105645","url":null,"abstract":"<div><h3>Background</h3><div>Globally, pre-eclampsia (PE) is a leading cause of maternal and perinatal morbidity and mortality. PE prediction using routinely collected data has the advantage of being widely applicable, particularly in low-resource settings. Early intervention for high-risk women might reduce PE incidence and related complications. We aimed to replicate our machine learning (ML) published work predicting another maternal condition (gestational diabetes) to (1) predict PE using routine health data, (2) identify the optimal ML model, and (3) compare it with logistic regression approach.</div></div><div><h3>Methods</h3><div>Data were from a large health service network with 48,250 singleton pregnancies between January 2016 and June 2021. Supervised ML models were employed. Maternal clinical and medical characteristics were the feature variables (predictors), and a 70/30 data split was used for training and testing the model. Predictive performance was assessed using area under the curve (AUC) and calibration plots. Shapley value analysis assessed the contribution of feature variables.</div></div><div><h3>Results</h3><div>The random forest approach provided excellent discrimination with an AUC of 0.84 (95% CI: 0.82–0.86) and highest prediction accuracy (0.79); however, the calibration curve (slope of 1.21, 95% CI 1.13–1.30) was acceptable only for a threshold of 0.3 or less. The next best approach was extreme gradient boosting, which provided an AUC of 0.77 (95% CI: 0.76–0.79) and well-calibrated (slope of 0.93, 95% CI 0.85–1.01). Logistic regression provided good discrimination performance with an AUC of 0.75 (95% CI: 0.74–0.76) and perfect calibration. Nulliparous, pre-pregnancy body mass index, previous pregnancy with prior PE, maternal age, family history of hypertension, and pre-existing hypertension and diabetes were the top-ranked features in Shapley value analysis.</div></div><div><h3>Conclusion</h3><div>Two ML models created the highest-performing prediction using routinely collected data to identify women at high risk of PE, with acceptable discrimination. However, to confirm this result and also examine model generalisability, external validation studies are needed in other settings, utilising standardised prognostic factors.</div></div>","PeriodicalId":54950,"journal":{"name":"International Journal of Medical Informatics","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142407214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CureMate: A clinical decision support system for breast cancer treatment CureMate:乳腺癌治疗临床决策支持系统。
IF 3.7 2区 医学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2024-10-05 DOI: 10.1016/j.ijmedinf.2024.105647

Background

Breast Cancer (BC) poses significant challenges in treatment decision-making. Multiple first treatment lines are currently available, determined by several patient-specific factors that need to be considered in the decision-making process.

Purpose

To present CureMate, a Clinical Decision Support System to predict the most effective initial treatment for BC patients. Different artificial intelligence models based on demographic, anatomopathological and magnetic resonance imaging variables are studied. CureMate’s web application allows for easy use of the best model.

Methods

A database of 232 BCE patients, each described by 29 variables, was established. Out of four machine learning algorithms, specifically Decision Tree Classifier (DTC), Gaussian Naïve Bayes (GNB), k-Nearest Neighbor (K-NN), and Support Vector Machine (SVM), the most suitable model for the task was identified, optimized and independently tested.

Results

SVM was identified as the best model for BC treatment planning, resulting in a test accuracy of 0.933. CureMate’s web application, including the SVM model, allows for introducing the relevant patient variables and displays the suggested first treatment step, as well as a diagram of the following steps.

Conclusion

The results demonstrate CureMate’s high accuracy and effectiveness in clinical settings, indicating its potential to aid practitioners in making informed therapeutic decisions.
背景:乳腺癌(BC)给治疗决策带来了巨大挑战。目的:介绍临床决策支持系统 CureMate,该系统可预测乳腺癌患者最有效的初始治疗方案。研究了基于人口统计学、解剖病理学和磁共振成像变量的不同人工智能模型。CureMate的网络应用程序可以方便地使用最佳模型:方法:建立了一个包含 232 名 BCE 患者的数据库,每个患者由 29 个变量描述。在四种机器学习算法中,即决策树分类器 (DTC)、高斯奈夫贝叶斯 (GNB)、k-近邻 (K-NN) 和支持向量机 (SVM) 中,确定了最适合该任务的模型,并对其进行了优化和独立测试:结果:SVM 被确定为 BC 治疗计划的最佳模型,测试准确率为 0.933。包括 SVM 模型在内的 CureMate 网络应用程序允许引入相关的患者变量,并显示建议的第一步治疗步骤以及后续步骤的图表:结果表明,CureMate 在临床环境中具有很高的准确性和有效性,这表明它具有帮助医生做出明智治疗决定的潜力。
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引用次数: 0
HERALD: A domain-specific query language for longitudinal health data analytics HERALD:用于纵向健康数据分析的特定领域查询语言。
IF 3.7 2区 医学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2024-10-05 DOI: 10.1016/j.ijmedinf.2024.105646

Background

Large-scale health data has significant potential for research and innovation, especially with longitudinal data offering insights into prevention, disease progression, and treatment effects. Yet, analyzing this data type is complex, as data points are repeatedly documented along the timeline. As a consequence, extracting cross-sectional tabular data suitable for statistical analysis and machine learning can be challenging for medical researchers and data scientists alike, with existing tools lacking balance between ease-of-use and comprehensiveness.

Objective

This paper introduces HERALD, a novel domain-specific query language designed to support the transformation of longitudinal health data into cross-sectional tables. We describe the basic concepts, the query syntax, a graphical user interface for constructing and executing HERALD queries, as well as an integration into Informatics for Integrating Biology and the Bedside (i2b2).

Methods

The syntax of HERALD mimics natural language and supports different query types for selection, aggregation, analysis of relationships, and searching for data points based on filter expressions and temporal constraints. Using a hierarchical concept model, queries are executed individually for the data of each patient, while constructing tabular output. HERALD is closed, meaning that queries process data points and generate data points. Queries can refer to data points that have been produced by previous queries, providing a simple, but powerful nesting mechanism.

Results

The open-source implementation consists of a HERALD query parser, an execution engine, as well as a web-based user interface for query construction and statistical analysis. The implementation can be deployed as a standalone component and integrated into self-service data analytics environments like i2b2 as a plugin. HERALD can be valuable tool for data scientists and machine learning experts, as it simplifies the process of transforming longitudinal health data into tables and data matrices.

Conclusion

The construction of cross-sectional tables from longitudinal data can be supported through dedicated query languages that strike a reasonable balance between language complexity and transformation capabilities.
背景:大规模健康数据在研究和创新方面具有巨大的潜力,尤其是纵向数据能为预防、疾病进展和治疗效果提供洞察力。然而,分析这种数据类型非常复杂,因为数据点是沿着时间轴重复记录的。因此,对于医学研究人员和数据科学家来说,提取适合统计分析和机器学习的横截面表格数据具有挑战性,现有工具在易用性和全面性之间缺乏平衡:本文介绍了 HERALD,这是一种新颖的特定领域查询语言,旨在支持将纵向健康数据转换为横截面表格。我们介绍了 HERALD 的基本概念、查询语法、用于构建和执行 HERALD 查询的图形用户界面,以及与整合生物学和床旁信息学(i2b2)的集成:HERALD 的语法模仿自然语言,支持不同的查询类型,包括选择、聚合、关系分析,以及根据过滤表达式和时间限制搜索数据点。利用分层概念模型,对每个病人的数据单独执行查询,同时构建表格输出。HERALD 是封闭的,这意味着查询可处理数据点并生成数据点。查询可以引用之前查询生成的数据点,从而提供了一个简单但功能强大的嵌套机制:开源实现包括一个 HERALD 查询解析器、一个执行引擎,以及一个用于查询构建和统计分析的基于网络的用户界面。该实现可作为独立组件部署,也可作为插件集成到 i2b2 等自助服务数据分析环境中。HERALD 可以简化将纵向健康数据转换为表格和数据矩阵的过程,是数据科学家和机器学习专家的宝贵工具:结论:通过专用的查询语言,可以支持从纵向数据构建横截面表格,这种语言在语言复杂性和转换能力之间取得了合理的平衡。
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引用次数: 0
期刊
International Journal of Medical Informatics
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