【医学影像与AI文献快递】第26期|2026年5月26日
1. 多任务深度学习辅助胶质瘤和脑转移瘤的检测与诊断
期刊:npj Digital Medicine
英文标题:Multi-task deep learning assists detection and diagnosis of gliomas and brain metastases.
中文摘要
目的:胶质瘤和脑转移瘤在MRI上对放射科医生构成显著的诊断挑战。本研究旨在开发一个多任务模型和计算机辅助诊断系统,用于胶质瘤和脑转移瘤的检测与诊断。
方法:本研究纳入了来自七个中心的3909名参与者,开发了脑肿瘤分割与分类网络(BTSC-Net)以及带有肿瘤掩膜可视化的BTSC-CAD系统。
结果:在检测方面,BTSC-Net在内部和外部测试集上的Dice系数分别为0.888和0.872;在诊断方面,其在内部和外部测试集上的AUC分别为0.941和0.933。在BTSC-CAD辅助下,初级放射科医生的检测平均AUC提高了4.8%(P < 0.05),诊断平均AUC提高了17.3%(P < 0.001),同时平均阅读时间减少了64.75秒。
结论:BTSC-CAD显著提高了放射科医生的诊断准确性和效率。
本刊点评
该研究通过大规模多中心数据验证了多任务深度学习在脑肿瘤辅助诊断中的临床价值,尤其显著提升了初级医生的诊断效能并缩短了阅片时间。BTSC-CAD系统将分割与分类任务整合于统一框架,为临床实践提供了高效的可视化辅助工具。
英文原摘要
Gliomas and brain metastases (BMs) on MRI pose significant diagnostic challenges for radiologists. This study aims to develop a multi-task model and a computer-aided diagnosis (CAD) system for the detection and diagnosis of gliomas and BMs. This study enrolled 3909 participants from seven centers, and developed a brain tumor segmentation and classification network (BTSC-Net) and BTSC-CAD with visualization of tumor masks. For detection, BTSC-Net achieved a Dice coefficient of 0.888 and 0.872 on the internal and external test sets, respectively. For diagnosis, BTSC-Net achieved AUCs of 0.941 and 0.933 on the internal and external test sets, respectively. With BTSC-CAD assistance, junior radiologists achieved mean AUC improvements of 4.8% (P < 0.05) for detection and 17.3% (P < 0.001) for diagnosis, along with an average reduction of 64.75 s in reading time. BTSC-CAD significantly improved radiologists' diagnostic accuracy and efficiency.
原文
[1] https://doi.org/10.1038/s41746-026-02759-3
2. 将人工智能工具整合到健康研究中
期刊:npj Digital Medicine
英文标题:Integrating artificial intelligence tools in health research.
中文摘要
目的:探讨健康研究学科与数据科学学科在工作流程上的差异,分析这些差异对人工智能(AI)研究工具在健康研究中应用的影响,并为如何有效利用AI工具提供实用建议。
方法:基于对健康研究学科与数据科学学科工作流程差异的反思,提出在健康研究中整合AI工具的具体建议,并针对如何培养下一代健康研究人员以应对AI工具整合的必然趋势给出推荐方案。
结果:识别出健康研究学科与数据科学学科在工作流程上的关键差异,这些差异影响了AI工具在健康研究中的有效整合;提出了在健康研究中利用AI工具的实际建议,并强调了为未来健康研究人员做好准备的必要性。
结论:健康研究领域需要主动适应与数据科学的工作流程差异,通过针对性建议和人才培养策略,以有效整合AI工具并推动研究创新。
本刊点评
本文聚焦于跨学科工作流程差异这一关键障碍,为健康研究者提供了切实可行的AI工具整合指南。其关于下一代研究人员培养的建议具有前瞻性,有助于推动AI在健康研究中的负责任应用。该观点对促进医学影像与核医学领域的AI转化具有重要参考价值。
英文原摘要
Disciplines conducting health research rely on discipline-specific workflows that are distinct from data science, the discipline which develops most artificial intelligence (AI)-enabled research tools. Here we reflect on the impact of such differences in workflows and provide practical advice for leveraging AI-enabled research tools in health research. Further, we provide recommendations for how to prepare the next generation of health researchers for the inevitable influx of research integrating AI-enabled tools.
原文
[2] https://doi.org/10.1038/s41746-026-02739-7
3. AI-PACE:将人工智能整合到医学教育中的框架
期刊:npj Digital Medicine
英文标题:AI-PACE: a framework for integrating AI into medical education.
中文摘要
目的:医学人工智能教育仍存在碎片化、专科偏向及缺乏纵向结构的问题,尤其对全科医生而言。通过整合性综述23篇同行评审文献(2016-2025年),我们识别出三个结构性缺陷:缺乏强化的短期干预、程序性领域偏见以及情感领域的持续代表性不足。
方法:采用整合性综述方法,系统检索并分析了2016年至2025年间发表的23篇同行评审文章,识别当前医学AI教育中的结构性缺陷。
结果:发现三个主要结构性缺陷:短期干预缺乏后续强化、存在程序性领域偏见、以及情感领域持续被忽视。基于此,提出了AI-PACE框架(精神运动、情感、认知、嵌入式),该框架以布鲁姆教育目标分类学为基础,将AI能力纵向组织于本科、研究生及继续医学教育阶段。
结论:AI-PACE框架为医学AI教育提供了系统化的纵向结构,有望解决当前教育中的碎片化和专科偏向问题,尤其有助于全科医生的AI能力培养。
本刊点评
该研究针对医学AI教育缺乏系统性的痛点,提出了基于经典教育理论的AI-PACE框架,具有重要的理论创新价值。通过整合23篇文献识别出的三大结构性缺陷,为后续课程设计提供了明确改进方向。然而,该框架的实际教学效果仍需通过前瞻性研究进一步验证。
英文原摘要
Medical AI education remains fragmented, specialty-skewed, and lacks longitudinal structure, particularly for generalist physicians. Through an integrative review of 23 peer-reviewed articles (2016-2025), we identified three structural gaps: short-term interventions without reinforcement, procedural-field bias, and consistent under-representation of the Affective domain. We present AI-PACE (Psychomotor, Affective, Cognitive, Embedded), a Bloom's Taxonomy-grounded framework organizing AI competencies longitudinally across undergraduate, graduate, and continuing medical education.
原文
[3] https://doi.org/10.1038/s41746-026-02768-2
4. 超声造影剂相关不良反应的类型、严重程度、发生率及处理:一项系统评价与荟萃分析
期刊:European Radiology
英文标题:Type, severity, frequency and management of adverse reactions associated with ultrasound contrast agents: a systematic review and meta-analysis.
中文摘要
目的:本系统评价与荟萃分析旨在评估临床获批超声造影剂在成人和儿童中给药后药物不良反应的发生率,评估心血管疾病患者及妊娠期女性的风险,并评价严重不良反应紧急处理的有效性。
方法:按照PRISMA 2020系统评价指南检索PubMed、Scopus和Embase数据库。两名评审员独立筛选文献、提取数据并评估质量。在可行时合并发生率估计值,并按年龄组、造影剂种类和给药途径进行分层分析。
结果:共纳入74项研究,涵盖超过100万成人和超过3.6万儿童,为定量合成提供了多个分析队列。严重急性不良反应极为罕见(成人和儿童中每10万人分别发生6例和16例),儿童腔内给药后未发生。非严重急性不良反应在成人和儿童中每1万人分别发生11例和8例。迟发性反应非常罕见(成人中每百万人少于1例)。不同超声造影剂产品之间未发现显著安全性差异。心血管疾病患者的不良反应发生率与普通人群相似。妊娠期女性中未报告不良反应。标准紧急处理在几乎所有严重病例中均有效,但仍有罕见死亡事件发生。
结论:超声造影剂在成人和儿童中显示出极佳的安全性特征,严重不良反应极为罕见,非严重反应少见且通常为自限性。严格遵守推荐的紧急处理方案可进一步降低剩余风险,支持其在广泛临床适应症中的安全使用。
本刊点评
该研究基于大规模人群数据系统证实了超声造影剂在成人和儿童中的卓越安全性,为临床决策提供了高质量证据。其发现严重不良反应发生率极低且紧急处理有效,进一步巩固了超声造影剂作为碘基和钆基造影剂可靠替代方案的地位。
英文原摘要
OBJECTIVES: This systematic review and meta-analysis are aimed at evaluating the incidence of adverse drug reactions (ADRs) following administration of clinically approved ultrasound contrast agents (UCAs) in adults and children, to assess risks in patients with cardiovascular disease and in pregnancy, and to evaluate the effectiveness of emergency management of severe ADRs.
MATERIALS AND
METHODS: A PRISMA 2020 systematic review was conducted searching PubMed, Scopus, and Embase. Two reviewers independently screened, extracted data, and assessed quality. Incidence estimates were pooled when feasible, stratified by age group, contrast agent, and administration route.
RESULTS: Seventy-four studies encompassing > 1 million adults and > 36,000 children were included, contributing multiple analytic cohorts to the quantitative synthesis. Severe acute ADRs were extremely rare (6 and 16 cases per 100,000 in adults and children, respectively) and absent following endocavitary administration in children. Non-severe acute ADRs occurred in 11 and 8 cases per 10,000 adults and children, respectively. Delayed reactions were very rare (< 1 case per million in adults). No significant safety differences emerged between UCA products. The incidence of ADRs in patients with cardiovascular disease was analogous to the general population. No ADRs were reported in pregnant women. Standard emergency management was effective in almost all serious cases, though rare fatalities occurred.
CONCLUSION: UCAs show an excellent safety profile in adults and children, with very rare severe ADRs and few non-severe, typically self-limiting reactions. Strict adherence to recommended emergency management protocols mitigates the remaining risks, supporting safe use across a broad range of clinical indications.
PROSPERO REGISTRATION: CRD42023432668.
KEY POINTS: Question What is the incidence, type, and severity of acute and delayed ADRs associated with clinically approved UCAs across different patient populations? Findings Severe acute adverse reactions are very rare, and non-severe reactions are rare and self-limiting, with no significant safety differences between adults, children, or patients with cardiovascular disease. Clinical relevant UCAs show an excellent safety profile across populations. These findings support their safe clinical use as reliable alternatives to iodine-based and gadolinium-based contrast agents in routine diagnostic imaging.
原文
[4] https://doi.org/10.1007/s00330-026-12594-5
5. 具有可解释性的阿尔茨海默病及相关痴呆症动态风险预测框架
期刊:npj Digital Medicine
英文标题:A dynamic risk prediction framework for Alzheimer's disease and related dementias with interpretability.
中文摘要
目的:阿尔茨海默病及相关痴呆症在症状出现前数年即已发展,早期预测至关重要。电子健康记录虽提供可扩展的替代方案,但面临就诊不规律、数据稀疏及可解释性有限等挑战。
方法:我们提出门控循环单元-衰减与注意力模型,该模型将GRU-D缺失值建模与RETAIN式注意力机制相结合,实现可解释的风险监测。模型在德克萨斯大学医师电子健康记录(15,172例ADRD病例,1:10匹配对照)上训练,并在All of Us队列中进行外部验证。使用诊断前长达10年的电子健康记录数据,随机起始随访以模拟真实就诊情况。
结果:GRU-DA和GRU-D均优于竞争模型,尤其在超过5年随访时表现突出,8.5年后AUROC约达0.7。预测性能更多依赖于数据可用性而非随访时长:1年随访且数据可用性15%(AUROC 0.75,平均精度0.5)与7.5年随访且数据可用性10%的结果相当。对于个体病例,GRU-DA产生稳定的风险预测,但不同折的时间步和特征归因存在一定变异。
结论:这些结果表明,电子健康记录数据可在诊断前长达10年内支持动态ADRD风险监测,其有效性受数据完整性的强烈影响。
本刊点评
本研究创新性地将缺失值建模与注意力机制结合,解决了电子健康记录数据不规则性和稀疏性问题,为ADRD早期预警提供了可解释的临床决策支持工具。外部验证和长达10年的随访窗口增强了结果的泛化性和临床转化潜力。
英文原摘要
Alzheimer's disease and related dementias (ADRD) develop years before symptoms emerge, making early prediction critical. Electronic health records (EHR) offer a scalable alternative to neuroimaging but are challenged by irregular encounters, data sparsity, and limited interpretability. We propose Gated Recurrent Unit with Decay & Attention (GRU-DA), which integrates GRU-D missingness modeling with RETAIN-style attention for interpretable risk monitoring. The model was trained on the University of Texas Physicians EHR (15,172 ADRD cases with 1:10 matched controls) and externally validated in the All of Us cohort. EHR data up to 10 years before diagnosis were used, with random follow-up initiation to reflect real-world encounters. Both GRU-DA and GRU-D outperformed competing models, particularly beyond 5 years of follow-up and achieved AUROC ~ 0.7 after 8.5 years. Prediction performance depended more on data availability than follow-up length: 1 year with 15% data availability (AUROC 0.75, Average Precision 0.5) was comparable to 7.5 years with 10% availability. For individual cases, GRU-DA produced stable risk predictions with some variability in timestep and feature-level attributions across folds. These results demonstrate EHR data can support dynamic ADRD risk monitoring up to 10 years before diagnosis, with effectiveness strongly influenced by data completeness.
原文
[5] https://doi.org/10.1038/s41746-026-02732-0
6. 机械臂辅助18F-FDG PET/CT引导下活检在发热伴可活检FDG高摄取病灶患者中的应用:单中心经验
期刊:EJNMMI
英文标题:Robotic arm-assisted 18F-FDG PET/CT-guided biopsy in febrile patients with biopsy accessible FDG-avid lesions: a single-centre experience.
中文摘要
目的:不明原因发热(FUO)是指经过广泛的门诊或住院检查后仍病因不明的长期发热。18F-氟脱氧葡萄糖(FDG)正电子发射断层扫描(PET)联合计算机断层扫描(CT)的诊断效能高于单独CT。本研究评估18F-FDG PET/CT引导下靶向活检在FUO中的诊断效能。
方法:本单中心回顾性研究纳入接受18F-FDG PET/CT引导下活检的FUO患者。将靶器官内高于周围背景的局灶性FDG摄取区域视为PET阳性,并使用自动化机械臂辅助PET/CT引导活检系统进行靶向活检。记录操作相关并发症,以组织病理学检查作为参考标准。计算诊断效能及其他基于PET的参数。
结果:分析了2017年至2025年6月期间接受18F-FDG PET/CT引导下活检的165例FUO患者[中位年龄47岁(IQR,30-60)]的数据。其中64例(39%)曾接受过既往检查但结果为阴性或不明确。最常见的靶向活检部位为肺部(71/165,43%)。18F-FDG PET/CT引导下活检在FUO患者中的诊断效能为96.4%(159/165),最常见病因为恶性肿瘤(70/165,42%),其次为感染(58/165,35%)、自身免疫性疾病(16/165,10%)和炎症性疾病(7/165,4%)。靶病灶的中位SUVmax为11.8(IQR,8.6-16.3;范围,3.3-53.8),不同病因的靶病灶间无显著差异(p=0.412)。仅6例患者(3.6%)出现操作相关并发症。
结论:对于存在FDG高摄取可及病灶的FUO患者,机械臂辅助18F-FDG PET/CT引导下活检是一种安全且准确的操作,可能有助于早期诊断和治疗。
本刊点评
本研究基于较大样本量(165例)证实了机械臂辅助PET/CT引导活检在FUO病因诊断中的高价值(诊断效能96.4%),且并发症率低(3.6%),为临床实践提供了有力证据。值得注意的是,约39%的患者此前已有阴性或非结论性检查结果,提示该技术可作为传统方法失败后的有效补充手段。未来可进一步开展多中心前瞻性研究以验证其普适性。
英文原摘要
PURPOSE: Fever of unknown origin (FUO) is a prolonged fever with unknown etiology after an extensive outpatient or inpatient workup. 18F-Flurodeoxyglucose (FDG) positron emission tomography (PET) with computed tomography (CT) has shown a higher diagnostic yield than CT. This study assesses the diagnostic yield of 18F-FDG PET/CT-guided targeted biopsy in FUO.
METHODS: This single-centre retrospective study included FUO patients who underwent 18F-FDG PET/CT-guided biopsy. A distinct focal area of FDG-uptake above the surrounding background within the organ of interest was considered PET-positive and targeted using automated robotic arm-assisted PET/CT-guided biopsy systems. Procedure-related complications were recorded, and histopathological examination was taken as the reference standard. Diagnostic yield and other PET-based parameters were calculated.
RESULTS: Data from 165 FUO patients [median age 47 years (IQR, 30-60)] who underwent 18F-FDG PET/CT-guided biopsy between 2017 and June 2025 were analysed. 64 (39%) had undergone a previous procedure with negative or inconclusive results. The most common site of targeted biopsy was the lungs (71/165, 43%). The diagnostic yield of 18F-FDG PET/CT-guided biopsy in FUO patients was 96.4% (159/165), with the most common cause being malignancy (70/165, 42%), followed by infection (58/165, 35%), autoimmune (16/165, 10%) and inflammatory (7/165, 4%) causes. The median SUVmax of the target lesions was 11.8 (IQR, 8.6-16.3; range, 3.3-53.8) with no significant difference among target lesions of different etiologies (p = 0.412). Only six patients (3.6%) had procedure-related complications.
CONCLUSION: Robotic arm-assisted 18F-FDG PET/CT-guided biopsy is a safe and accurate procedure in FUO patients having FDG-avid accessible lesions and may help in early diagnosis and management.
原文
[6] https://doi.org/10.1007/s00259-026-07928-w
7. 人工智能与以人为本的实践:一项批判性反思
期刊:npj Digital Medicine
英文标题:Artificial intelligence and person-centred practice: a critical reflection.
中文摘要
目的:探讨人工智能在医疗保健领域的引入如何通过McCance和McCormack的以人为本实践框架,既促进又削弱护理的人性化。
方法:基于文献综述,通过结构化对话和文献综合,识别人工智能在医疗实践中的机遇与挑战。
结果:研究发现,人工智能在提升效率的同时,可能威胁关系伦理、专业判断和核心的以人为本价值观。
结论:主张在将人工智能整合到日常实践中时,需进行情境敏感的实施,以保障关系伦理、专业判断和核心的以人为本价值观。
本刊点评
本文从批判性视角审视人工智能与医疗人性化的张力,为医学影像与核医学领域的技术应用提供了伦理反思框架。其强调的‘情境敏感实施’对临床实践中AI工具的部署具有重要指导意义,但缺乏具体案例或数据支撑,建议后续研究结合实证分析。
英文原摘要
The introduction of artificial intelligence into healthcare is a reality. Drawing on literature, this critical reflection uses McCance and McCormack's Person-Centred Practice Framework to examine how artificial intelligence can both advance and undermine the humanisation of care. Through structured dialogue and literature synthesis, we identify opportunities alongside challenges. We argue for context-sensitive implementation that integrates artificial intelligence into everyday practice while safeguarding relational ethics, professional judgement, and core person-centred values.
原文
[7] https://doi.org/10.1038/s41746-026-02776-2
8. 基于视频Swin Transformer的全球时空生物力学:圆锥角膜疑似病例的多尺度验证与临床影响
期刊:npj Digital Medicine
英文标题:Global spatiotemporal biomechanics using video swin transformer: multiscale validation and clinical impact for keratoconus suspects.
中文摘要
目的:评估生物力学特性在角膜扩张性疾病(尤其是圆锥角膜)早期诊断中的价值,当前早期诊断主要依赖角膜形态学,易导致漏诊。本研究旨在利用视频Swin Transformer从变形视频中表征全球时空角膜生物力学,提升对疑似病例的诊断准确性。
方法:采用视频Swin Transformer模型处理角膜变形视频,捕捉完整动态过程;通过时间重要性分析识别关键早期标志物;并利用原子力显微镜纳米压痕和粘附力测试验证圆锥角膜的表观杨氏模量降低和粘附力增加。
结果:模型对疑似病例的诊断准确性显著提升(AUC 0.9942;准确率97.37%;95% CI: 93.0%, 99.7%)。时间重要性分析揭示反弹期能量耗散为关键早期标志物。原子力显微镜测试证实圆锥角膜表观杨氏模量降低、粘附力增加。
结论:本研究提出了一种新颖、可解释、基于体内视频的框架,支持早期鉴别诊断和个性化干预,在精准医学中具有临床潜力。
本刊点评
该研究创新性地将视频Swin Transformer应用于角膜生物力学分析,实现了高精度早期诊断,并通过多尺度验证增强了结果可信度。其可解释性分析为临床提供了明确的早期标志物,有望推动圆锥角膜筛查与个性化治疗策略的发展。
英文原摘要
Biomechanical assessment offers a novel approach for the diagnosis and treatment of corneal ectatic disorders, particularly keratoconus, a blinding eye disease characterized by biomechanical weakening. However, current early diagnosis primarily relies on morphology, such as corneal tomography, which can lead to missed cases. This study utilized a video swin transformer to characterize global spatiotemporal corneal biomechanics from deformation videos. This model captures the entire dynamic process, significantly enhancing the diagnostic accuracy for suspicious cases (AUC 0.9942; accuracy 97.37%; 95% CI: 93.0%, 99.7%). Temporal-importance analysis revealed rebound-phase energy dissipation as a key early marker. Additionally, atomic force microscopy-based nanoindentation and adhesion tests confirmed reduced apparent Young's modulus and increased adhesion force in keratoconus. In conclusion, this study presents a novel, interpretable, in vivo, video-driven framework that supports early differential diagnosis and personalized intervention. This approach has clinical potential for precision medicine.
原文
[8] https://doi.org/10.1038/s41746-026-02751-x
本期观察
本期收录8篇文献,涵盖核医学(PET/CT引导活检)、放射影像(超声造影安全性)、医学AI(多任务脑肿瘤诊断、ADRD风险预测、AI教育框架、AI整合工具)及计算医学(角膜生物力学AI分析)等领域。其中多任务深度学习脑肿瘤诊断系统BTSC-Net基于7中心3909例数据验证,展示了AI在神经影像中的临床转化价值。