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Wearable facial electromyography: in the face of new opportunities 佩戴式面部肌电图:面对新机遇
Q1 ENGINEERING, BIOMEDICAL Pub Date : 2023-07-06 DOI: 10.1088/2516-1091/ace508
B. Levit, Shira Klorfeld-Auslender, Y. Hanein
Facial muscles play an important role in a vast range of physiological functions, ranging from mastication to communication. Any disruption in their normal function may lead to serious negative effects on human well-being. A very wide range of medical disorders and conditions in psychology, neurology, psychiatry, and cosmetic surgery are related to facial muscles, and scientific explorations spanning over decades exposed many fascinating phenomena. For example, expansive evidence implicates facial muscle activation with the expression of emotions. Yet, the exact manner by which emotions are expressed is still debated: whether facial expressions are universal, how gender and cultural differences shape facial expressions and if and how facial muscle activation shape the internal emotional state. Surface electromyography (EMG) is one of the best tools for direct investigation of facial muscle activity and can be applied for medical and research purposes. The use of surface EMG has been so far restricted, owing to limited resolution and cumbersome setups. Current technologies are inconvenient, interfere with the subject normal behavior, and require know-how in proper electrode placement. High density electrode arrays based on soft skin technology is a recent development in the realm of surface EMG. It opens the door to perform facial EMG (fEMG) with high signal quality, while maintaining significantly more natural environmental conditions and higher data resolution. Signal analysis of multi-electrode recordings can also reduce crosstalk to achieve single muscle resolution. This perspective paper presents and discusses new opportunities in mapping facial muscle activation, brought about by this technological advancement. The paper briefly reviews some of the main applications of fEMG and presents how these applications can benefit from a more precise and less intrusive technology.
面部肌肉在从咀嚼到交流等一系列生理功能中发挥着重要作用。对其正常功能的任何破坏都可能导致对人类福祉的严重负面影响。在心理学、神经病学、精神病学和整容外科中,广泛的医学疾病和状况都与面部肌肉有关,几十年来的科学探索揭示了许多迷人的现象。例如,大量证据表明面部肌肉的激活与情绪的表达有关。然而,情绪表达的确切方式仍然存在争议:面部表情是否普遍,性别和文化差异如何影响面部表情,面部肌肉激活是否以及如何影响内部情绪状态。表面肌电图(EMG)是直接观察面部肌肉活动的最佳工具之一,可用于医学和研究目的。由于分辨率有限和设置繁琐,表面肌电图的使用迄今为止一直受到限制。目前的技术不方便,干扰受试者的正常行为,并且需要知道如何正确放置电极。基于软皮技术的高密度电极阵列是表面肌电领域的最新发展。它为高信号质量的面部肌电信号(fEMG)打开了大门,同时保持了更自然的环境条件和更高的数据分辨率。多电极记录的信号分析也可以减少串扰,达到单肌肉分辨率。这篇前瞻性的文章提出并讨论了这一技术进步所带来的面部肌肉激活映射的新机遇。本文简要回顾了fEMG的一些主要应用,并介绍了这些应用如何从更精确、更少干扰的技术中受益。
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引用次数: 0
A systematic review of cardiac in-silico clinical trials. 心脏计算机临床试验的系统综述。
Q1 ENGINEERING, BIOMEDICAL Pub Date : 2023-07-01 DOI: 10.1088/2516-1091/acdc71
Cristobal Rodero, Tiffany M G Baptiste, Rosie K Barrows, Hamed Keramati, Charles P Sillett, Marina Strocchi, Pablo Lamata, Steven A Niederer

Computational models of the heart are now being used to assess the effectiveness and feasibility of interventions through in-silico clinical trials (ISCTs). As the adoption and acceptance of ISCTs increases, best practices for reporting the methodology and analysing the results will emerge. Focusing in the area of cardiology, we aim to evaluate the types of ISCTs, their analysis methods and their reporting standards. To this end, we conducted a systematic review of cardiac ISCTs over the period of 1 January 2012-1 January 2022, following the preferred reporting items for systematic reviews and meta-analysis (PRISMA). We considered cardiac ISCTs of human patient cohorts, and excluded studies of single individuals and those in which models were used to guide a procedure without comparing against a control group. We identified 36 publications that described cardiac ISCTs, with most of the studies coming from the US and the UK. In 75% of the studies, a validation step was performed, although the specific type of validation varied between the studies. ANSYS FLUENT was the most commonly used software in 19% of ISCTs. The specific software used was not reported in 14% of the studies. Unlike clinical trials, we found a lack of consistent reporting of patient demographics, with 28% of the studies not reporting them. Uncertainty quantification was limited, with sensitivity analysis performed in only 19% of the studies. In 97% of the ISCTs, no link was provided to provide easy access to the data or models used in the study. There was no consistent naming of study types with a wide range of studies that could potentially be considered ISCTs. There is a clear need for community agreement on minimal reporting standards on patient demographics, accepted standards for ISCT cohort quality control, uncertainty quantification, and increased model and data sharing.

心脏的计算模型现在被用于通过计算机临床试验(isct)评估干预措施的有效性和可行性。随着isct的采用和接受程度的提高,将出现报告方法和分析结果的最佳做法。在心脏病学领域,我们的目标是评估isct的类型,他们的分析方法和报告标准。为此,我们对2012年1月1日至2022年1月1日期间的心脏isct进行了系统回顾,遵循系统回顾和荟萃分析(PRISMA)的首选报告项目。我们考虑了人类患者队列的心脏isct,并排除了单个个体的研究和那些在没有与对照组进行比较的情况下使用模型指导手术的研究。我们确定了36篇描述心脏isct的出版物,其中大多数研究来自美国和英国。在75%的研究中,进行了验证步骤,尽管具体的验证类型在研究之间有所不同。ANSYS FLUENT是19%的isct中最常用的软件。14%的研究没有报告具体使用的软件。与临床试验不同,我们发现缺乏一致的患者人口统计报告,28%的研究没有报告。不确定度量化是有限的,只有19%的研究进行了敏感性分析。在97%的isct中,没有提供链接以方便访问研究中使用的数据或模型。研究类型没有一致的命名,广泛的研究可能被认为是isct。显然,需要就患者人口统计学的最低报告标准、ISCT队列质量控制的公认标准、不确定性量化以及增加模型和数据共享达成社区协议。
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引用次数: 1
Imaging skins: stretchable and conformable on-organ beta particle detectors for radioguided surgery 皮肤成像:可拉伸且可在器官β粒子探测器上适形,用于放射引导手术
Q1 ENGINEERING, BIOMEDICAL Pub Date : 2023-07-01 DOI: 10.1088/2516-1091/acdc70
S. Dietsch, L. Lindenroth, A. Stilli, D. Stoyanov
While radioguided surgery (RGS) traditionally relied on detecting gamma rays, direct detection of beta particles could facilitate the detection of tumour margins intraoperatively by reducing radiation noise emanating from distant organs, thereby improving the signal-to-noise ratio of the imaging technique. In addition, most existing beta detectors do not offer surface sensing or imaging capabilities. Therefore, we explore the concept of a stretchable scintillator to detect beta-particles emitting radiotracers that would be directly deployed on the targeted organ. Such detectors, which we refer to as imaging skins, would work as indirect radiation detectors made of light-emitting agents and biocompatible stretchable material. Our vision is to detect scintillation using standard endoscopes routinely employed in minimally invasive surgery. Moreover, surgical robotic systems would ideally be used to apply the imaging skins, allowing for precise control of each component, thereby improving positioning and task repeatability. While still in the exploratory stages, this innovative approach has the potential to improve the detection of tumour margins during RGS by enabling real-time imaging, ultimately improving surgical outcomes.
虽然放射引导手术(RGS)传统上依赖于检测伽马射线,但直接检测β粒子可以通过减少来自远处器官的辐射噪声来促进术中肿瘤边缘的检测,从而提高成像技术的信噪比。此外,大多数现有的β探测器不提供表面传感或成像功能。因此,我们探索了可拉伸闪烁体的概念,以检测发射放射性示踪剂的β粒子,这些放射性示踪剂将直接部署在靶器官上。这种探测器,我们称之为成像皮肤,将作为由发光剂和生物相容性可拉伸材料制成的间接辐射探测器工作。我们的愿景是使用微创手术中常规使用的标准内窥镜来检测闪烁。此外,理想情况下,手术机器人系统将用于应用成像皮肤,允许精确控制每个部件,从而提高定位和任务可重复性。尽管仍处于探索阶段,但这种创新方法有可能通过实现实时成像来改善RGS期间肿瘤边缘的检测,最终改善手术结果。
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引用次数: 0
Mathematics of biomedical imaging today—a perspective 今天生物医学成像的数学——透视
Q1 ENGINEERING, BIOMEDICAL Pub Date : 2023-05-26 DOI: 10.1088/2516-1091/acd973
M. Betcke, C. Schönlieb
Biomedical imaging is a fascinating, rich and dynamic research area, which has huge importance in biomedical research and clinical practice alike. The key technology behind the processing, and automated analysis and quantification of imaging data is mathematics. Starting with the optimisation of the image acquisition and the reconstruction of an image from indirect tomographic measurement data, all the way to the automated segmentation of tumours in medical images and the design of optimal treatment plans based on image biomarkers, mathematics appears in all of these in different flavours. Non-smooth optimisation in the context of sparsity-promoting image priors, partial differential equations for image registration and motion estimation, and deep neural networks for image segmentation, to name just a few. In this article, we present and review mathematical topics that arise within the whole biomedical imaging pipeline, from tomographic measurements to clinical support tools, and highlight some modern topics and open problems. The article is addressed to both biomedical researchers who want to get a taste of where mathematics arises in biomedical imaging as well as mathematicians who are interested in what mathematical challenges biomedical imaging research entails.
生物医学成像是一个引人入胜、内容丰富、充满活力的研究领域,在生物医学研究和临床实践中都具有重要意义。图像数据的处理、自动分析和量化背后的关键技术是数学。从优化图像采集和从间接断层测量数据重建图像开始,一直到医学图像中肿瘤的自动分割和基于图像生物标志物的最佳治疗计划的设计,数学以不同的方式出现在所有这些方面。稀疏性促进图像先验的非平滑优化、用于图像配准和运动估计的偏微分方程以及用于图像分割的深度神经网络,仅举几例。在这篇文章中,我们介绍并回顾了整个生物医学成像管道中出现的数学主题,从断层摄影测量到临床支持工具,并强调了一些现代主题和悬而未决的问题。这篇文章既面向希望了解生物医学成像中数学产生的地方的生物医学研究人员,也面向对生物医学成像研究所带来的数学挑战感兴趣的数学家。
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引用次数: 0
In silico simulation: a key enabling technology for next-generation intelligent surgical systems 硅片模拟:下一代智能手术系统的关键使能技术
Q1 ENGINEERING, BIOMEDICAL Pub Date : 2023-05-04 DOI: 10.1088/2516-1091/acd28b
Benjamin Killeen, Sue Min Cho, M. Armand, Russell H. Taylor, M. Unberath
To mitigate the challenges of operating through narrow incisions under image guidance, there is a desire to develop intelligent systems that assist decision making and spatial reasoning in minimally invasive surgery (MIS). In this context, machine learning-based systems for interventional image analysis are receiving considerable attention because of their flexibility and the opportunity to provide immediate, informative feedback to clinicians. It is further believed that learning-based image analysis may eventually form the foundation for semi- or fully automated delivery of surgical treatments. A significant bottleneck in developing such systems is the availability of annotated images with sufficient variability to train generalizable models, particularly the most recently favored deep convolutional neural networks or transformer architectures. A popular alternative to acquiring and manually annotating data from the clinical practice is the simulation of these data from human-based models. Simulation has many advantages, including the avoidance of ethical issues, precisely controlled environments, and the scalability of data collection. Here, we survey recent work that relies on in silico training of learning-based MIS systems, in which data are generated via computational simulation. For each imaging modality, we review available simulation tools in terms of compute requirements, image quality, and usability, as well as their applications for training intelligent systems. We further discuss open challenges for simulation-based development of MIS systems, such as the need for integrated imaging and physical modeling for non-optical modalities, as well as generative patient models not dependent on underlying computed tomography, MRI, or other patient data. In conclusion, as the capabilities of in silico training mature, with respect to sim-to-real transfer, computational efficiency, and degree of control, they are contributing toward the next generation of intelligent surgical systems.
为了减轻在图像引导下通过狭窄切口进行手术的挑战,人们希望开发智能系统,帮助微创手术(MIS)中的决策和空间推理。在这种情况下,用于介入图像分析的基于机器学习的系统由于其灵活性和向临床医生提供即时、信息反馈的机会而受到相当大的关注。人们进一步认为,基于学习的图像分析可能最终形成手术治疗的半自动或全自动交付的基础。开发此类系统的一个重要瓶颈是具有足够可变性的注释图像的可用性,以训练可推广模型,特别是最近最受欢迎的深度卷积神经网络或转换器架构。从临床实践中获取和手动注释数据的一种流行的替代方案是从基于人体的模型中模拟这些数据。模拟具有许多优点,包括避免道德问题、精确控制的环境以及数据收集的可扩展性。在这里,我们调查了最近依赖于基于学习的MIS系统的计算机训练的工作,其中数据是通过计算模拟生成的。对于每种成像模式,我们从计算需求、图像质量和可用性方面回顾了可用的模拟工具,以及它们在训练智能系统方面的应用。我们进一步讨论了MIS系统基于模拟开发的开放挑战,例如对非光学模态的集成成像和物理建模的需求,以及不依赖于底层计算机断层扫描、MRI或其他患者数据的生成患者模型。总之,随着计算机训练能力的成熟,在模拟到真实的转移、计算效率和控制程度方面,它们正在为下一代智能手术系统做出贡献。
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引用次数: 0
Point of care approaches to 3D bioprinting for wound healing applications 用于伤口愈合应用的3D生物打印的护理点方法
Q1 ENGINEERING, BIOMEDICAL Pub Date : 2023-04-20 DOI: 10.1088/2516-1091/acceeb
Eileen R. Wallace, Z. Yue, M. Dottori, F. Wood, M. Fear, G. Wallace, S. Beirne
In the quest to improve both aesthetic and functional outcomes for patients, the clinical care of full-thickness cutaneous wounds has undergone significant development over the past decade. A shift from replacement to regeneration has prompted the development of skin substitute products, however, inaccurate replication of host tissue properties continues to stand in the way of realising the ultimate goal of scar-free healing. Advances in three-dimensional (3D) bioprinting and biomaterials used for tissue engineering have converged in recent years to present opportunities to progress this field. However, many of the proposed bioprinting strategies for wound healing involve lengthy in-vitro cell culture and construct maturation periods, employ complex deposition technologies, and lack credible point of care (POC) delivery protocols. In-situ bioprinting is an alternative strategy which can combat these challenges. In order to survive the journey to bedside, printing protocols must be curated, and biomaterials/cells selected which facilitate intraoperative delivery. In this review, the current status of in-situ 3D bioprinting systems for wound healing applications is discussed, highlighting the delivery methods employed, biomaterials/cellular components utilised and anticipated translational challenges. We believe that with the growth of collaborative networks between researchers, clinicians, commercial, ethical, and regulatory experts, in-situ 3D bioprinting has the potential to transform POC wound care treatment.
为了改善患者的美观和功能,全层皮肤伤口的临床护理在过去十年中取得了重大进展。从替代到再生的转变促使了皮肤替代产品的开发,然而,宿主组织特性的不准确复制仍然阻碍着实现无疤痕愈合的最终目标。近年来,三维(3D)生物打印和用于组织工程的生物材料的进展已经融合在一起,为该领域的发展提供了机会。然而,许多提出的用于伤口愈合的生物打印策略涉及漫长的体外细胞培养和构建体成熟期,使用复杂的沉积技术,并且缺乏可靠的护理点(POC)递送方案。原位生物打印是一种可以应对这些挑战的替代策略。为了在到达床边的旅程中幸存下来,必须策划打印方案,并选择有助于术中分娩的生物材料/细胞。在这篇综述中,讨论了用于伤口愈合应用的原位3D生物打印系统的现状,重点介绍了所采用的递送方法、所使用的生物材料/细胞成分以及预期的转化挑战。我们相信,随着研究人员、临床医生、商业、伦理和监管专家之间合作网络的发展,原位3D生物打印有可能改变POC伤口护理治疗。
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引用次数: 3
The potential of in vitro neuronal networks cultured on micro electrode arrays for biomedical research 在微电极阵列上培养的体外神经元网络在生物医学研究中的潜力
Q1 ENGINEERING, BIOMEDICAL Pub Date : 2023-04-18 DOI: 10.1088/2516-1091/acce12
Marta Cerina, M. Piastra, M. Frega
In vitro neuronal models have become an important tool to study healthy and diseased neuronal circuits. The growing interest of neuroscientists to explore the dynamics of neuronal systems and the increasing need to observe, measure and manipulate not only single neurons but populations of cells pushed for technological advancement. In this sense, micro-electrode arrays (MEAs) emerged as a promising technique, made of cell culture dishes with embedded micro-electrodes allowing non-invasive and relatively simple measurement of the activity of neuronal cultures at the network level. In the past decade, MEAs popularity has rapidly grown. MEA devices have been extensively used to measure the activity of neuronal cultures mainly derived from rodents. Rodent neuronal cultures on MEAs have been employed to investigate physiological mechanisms, study the effect of chemicals in neurotoxicity screenings, and model the electrophysiological phenotype of neuronal networks in different pathological conditions. With the advancements in human induced pluripotent stem cells (hiPSCs) technology, the differentiation of human neurons from the cells of adult donors became possible. hiPSCs-derived neuronal networks on MEAs have been employed to develop patient-specific in vitro platforms to characterize the pathophysiological phenotype and to test drugs, paving the way towards personalized medicine. In this review, we first describe MEA technology and the information that can be obtained from MEA recordings. Then, we give an overview of studies in which MEAs have been used in combination with different neuronal systems (i.e. rodent 2D and three-dimensional (3D) neuronal cultures, organotypic brain slices, hiPSCs-derived 2D and 3D neuronal cultures, and brain organoids) for biomedical research, including physiology studies, neurotoxicity screenings, disease modeling, and drug testing. We end by discussing potential, challenges and future perspectives of MEA technology, and providing some guidance for the choice of the neuronal model and MEA device, experimental design, data analysis and reporting for scientific publications.
体外神经元模型已成为研究健康和病变神经元回路的重要工具。神经科学家对探索神经元系统动力学的兴趣日益浓厚,对观察、测量和操纵不仅是单个神经元,而且是细胞群体的需求日益增长,推动了技术进步。从这个意义上讲,微电极阵列(MEAs)成为一种很有前途的技术,由嵌入微电极的细胞培养皿制成,可以在网络水平上对神经元培养物的活性进行非侵入性和相对简单的测量。在过去的十年中,mea的受欢迎程度迅速增长。MEA装置已被广泛用于测量主要来自啮齿动物的神经元培养物的活性。在MEAs上进行啮齿动物神经元培养,探讨其生理机制,研究化学物质在神经毒性筛选中的作用,并模拟不同病理条件下神经元网络的电生理表型。随着人类诱导多能干细胞(hiPSCs)技术的进步,人类神经元从成人供体细胞分化成为可能。MEAs上hipscs衍生的神经网络已被用于开发患者特异性的体外平台,以表征病理生理表型和测试药物,为个性化医疗铺平道路。在这篇综述中,我们首先描述了MEA技术和可以从MEA记录中获得的信息。然后,我们概述了MEAs与不同神经元系统(即啮齿动物2D和三维(3D)神经元培养,器官型脑切片,hipscs衍生的2D和3D神经元培养以及脑类器官)结合用于生物医学研究的研究,包括生理学研究,神经毒性筛选,疾病建模和药物测试。最后,我们讨论了MEA技术的潜力、挑战和未来前景,并为神经元模型和MEA设备的选择、实验设计、数据分析和科学出版物的报告提供了一些指导。
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引用次数: 0
Review of in silico models of cerebral blood flow in health and pathology 脑血流计算机模型在健康和病理学中的研究进展
Q1 ENGINEERING, BIOMEDICAL Pub Date : 2023-04-12 DOI: 10.1088/2516-1091/accc62
Stephen Payne, T. Józsa, W. El-Bouri
In this review, we provide a summary of the state-of-the-art in the in silico modelling of cerebral blood flow (CBF) and its application in in silico clinical trials. CBF plays a key role in the transport of nutrients, including oxygen and glucose, to brain cells, and the cerebral vasculature is a highly complex, multi-scale, dynamic system that acts to ensure that supply and demand of these nutrients are continuously balanced. It also plays a key role in the transport of other substances, such as recombinant tissue-plasminogen activator, to brain tissue. Any dysfunction in CBF can rapidly lead to cell death and permanent damage to brain regions, leading to loss of bodily functions and death. The complexity of the cerebral vasculature and the difficulty in obtaining accurate anatomical information combine to make mathematical models of CBF key in understanding brain supply, diagnosis of cerebrovascular disease, quantification of the effects of thrombi, selection of the optimum intervention, and neurosurgical planning. Similar in silico models have now been widely applied in a variety of body organs (most notably in the heart), but models of CBF are still far behind. The increased availability of experimental data in the last 15 years however has enabled these models to develop more rapidly and this progress is the focus of this review. We thus present a brief review of the cerebral vasculature and the mathematical foundations that underpin CBF in both the microvasculature and the macrovasculature. We also demonstrate how such models can be applied in the context of cerebral diseases and show how this work has recently been expanded to in silico trials for the first time. Most work to date in this context has been performed for ischaemic stroke or cerebral aneurysms, but these in-silico models have many other applications in neurodegenerative diseases where mathematical models have a vital role to play in testing hypotheses and providing test beds for clinical interventions.
在这篇综述中,我们总结了脑血流(CBF)的计算机模拟技术及其在计算机临床试验中的应用。CBF在包括氧气和葡萄糖在内的营养物质向脑细胞的运输中发挥着关键作用,而脑血管系统是一个高度复杂、多尺度、动态的系统,其作用是确保这些营养物质的供需持续平衡。它在其他物质(如重组组织纤溶酶原激活剂)向脑组织的运输中也起着关键作用。CBF的任何功能障碍都会迅速导致细胞死亡和大脑区域的永久性损伤,导致身体功能丧失和死亡。脑血管系统的复杂性和获得准确解剖信息的困难相结合,使CBF的数学模型成为了解脑供应、诊断脑血管疾病、量化血栓影响、选择最佳干预措施和神经外科计划的关键。类似的计算机模型现在已经广泛应用于各种身体器官(尤其是心脏),但CBF模型仍然远远落后。然而,在过去15年中,实验数据的可用性增加,使这些模型得以更快地发展,这一进展是本综述的重点。因此,我们简要回顾了脑血管系统以及在微血管和大血管系统中支持CBF的数学基础。我们还展示了这些模型如何应用于脑疾病,并展示了这项工作最近如何首次扩展到计算机试验。迄今为止,这方面的大多数工作都是针对缺血性中风或脑动脉瘤进行的,但这些计算机模型在神经退行性疾病中还有许多其他应用,其中数学模型在检验假设和为临床干预提供试验台方面发挥着至关重要的作用。
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引用次数: 0
Deep multimodal fusion of image and non-image data in disease diagnosis and prognosis: a review. 疾病诊断和预后中图像和非图像数据的深度多模式融合:综述。
Q1 ENGINEERING, BIOMEDICAL Pub Date : 2023-04-11 DOI: 10.1088/2516-1091/acc2fe
Can Cui, Haichun Yang, Yaohong Wang, Shilin Zhao, Zuhayr Asad, Lori A Coburn, Keith T Wilson, Bennett A Landman, Yuankai Huo

The rapid development of diagnostic technologies in healthcare is leading to higher requirements for physicians to handle and integrate the heterogeneous, yet complementary data that are produced during routine practice. For instance, the personalized diagnosis and treatment planning for a single cancer patient relies on various images (e.g. radiology, pathology and camera images) and non-image data (e.g. clinical data and genomic data). However, such decision-making procedures can be subjective, qualitative, and have large inter-subject variabilities. With the recent advances in multimodal deep learning technologies, an increasingly large number of efforts have been devoted to a key question: how do we extract and aggregate multimodal information to ultimately provide more objective, quantitative computer-aided clinical decision making? This paper reviews the recent studies on dealing with such a question. Briefly, this review will include the (a) overview of current multimodal learning workflows, (b) summarization of multimodal fusion methods, (c) discussion of the performance, (d) applications in disease diagnosis and prognosis, and (e) challenges and future directions.

医疗保健诊断技术的快速发展对医生处理和集成日常实践中产生的异构但互补的数据提出了更高的要求。例如,单个癌症患者的个性化诊断和治疗计划依赖于各种图像(例如放射学、病理学和摄像机图像)和非图像数据(例如临床数据和基因组数据)。然而,这种决策程序可能是主观的、定性的,并且具有很大的主体间可变性。随着多模式深度学习技术的最新进展,越来越多的人致力于一个关键问题:我们如何提取和聚合多模式信息,以最终提供更客观、定量的计算机辅助临床决策?本文综述了近年来关于处理这一问题的研究。简言之,这篇综述将包括(a)当前多模式学习工作流程的概述,(b)多模式融合方法的总结,(c)性能的讨论,(d)在疾病诊断和预后中的应用,以及(e)挑战和未来方向。
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引用次数: 25
Advancing treatment of retinal disease through in silico trials 通过计算机试验推进视网膜疾病的治疗
Q1 ENGINEERING, BIOMEDICAL Pub Date : 2023-03-29 DOI: 10.1088/2516-1091/acc8a9
R. Hernández, P. A. Roberts, W. El-Bouri
Treating retinal diseases to prevent sight loss is an increasingly important challenge. Thanks to the configuration of the eye, the retina can be examined relatively easily in situ. Owing to recent technological development in scanning devices, much progress has been made in understanding the structure of the retina and characterising retinal biomarkers. However, treatment options remain limited and are often of low efficiency and efficacy. In recent years, the concept of in silico clinical trials (ISCTs) has been adopted by many pharmaceutical companies to optimise and accelerate the development of therapeutics. ISCTs rely on the use of mathematical models based on the physical and biochemical mechanisms underpinning a biological system. With appropriate simplifications and assumptions, one can generate computer simulations of various treatment regimens, new therapeutic molecules, delivery strategies and so forth, rapidly and at a fraction of the cost required for the equivalent experiments. Such simulations have the potential not only to hasten the development of therapies and strategies but also to optimise the use of existing therapeutics. In this paper, we review the state-of-the-art in in silico models of the retina for mathematicians, biomedical scientists and clinicians, highlighting the challenges to developing ISCTs. Throughout this paper, we highlight key findings from in silico models about the physiology of the retina in health and disease. We describe the main building blocks of ISCTs and identify challenges to developing ISCTs of retinal diseases.
治疗视网膜疾病以预防视力丧失是一项日益重要的挑战。由于眼睛的结构,视网膜可以相对容易地在原位检查。由于近年来扫描设备的技术发展,在了解视网膜结构和表征视网膜生物标志物方面取得了很大进展。然而,治疗选择仍然有限,而且往往效率和疗效都很低。近年来,许多制药公司采用了计算机临床试验(isct)的概念来优化和加速治疗方法的开发。isct依赖于使用基于支撑生物系统的物理和生化机制的数学模型。通过适当的简化和假设,人们可以生成各种治疗方案的计算机模拟,新的治疗分子,递送策略等等,快速而成本只是等效实验所需的一小部分。这种模拟不仅有可能加速治疗方法和策略的发展,而且有可能优化现有治疗方法的使用。在本文中,我们回顾了数学家、生物医学科学家和临床医生使用的最先进的视网膜计算机模型,强调了开发isct的挑战。在这篇论文中,我们强调了在健康和疾病中视网膜生理学的计算机模型的主要发现。我们描述了isct的主要组成部分,并确定了发展视网膜疾病isct的挑战。
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引用次数: 2
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Progress in biomedical engineering (Bristol, England)
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