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Artificial Intelligence in Health                                       AI in AD – Diagnosis and monitoring



            text, while NLU is committed to understanding textual   enhancement of categorization accuracy is feasible by
            material. NLG  encapsulates  recent  advances in  large   concentrating on wave number bands with a variable
            language models, exemplified by OpenAI’s freely available   importance in projection (VIP) score of ≥1. In addition to
            Chat Generative Pre-trained Transformer.  These    bolstering the model’s accuracy, the VIP score facilitates
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            advancements highlight the evolving landscape of NLP   the identification of important Raman spectroscopic
            and its important role in the advancement of language-  signatures associated with proteins, lipids, and nucleic
            related applications.                              acids, which can serve as biomarkers for therapeutic and
              In recent years, the adoption of multimodal techniques   clinical evaluation of AD patients’ skin health. Using CRM
            in algorithms has surged, driven by the utilization of diverse   and multivariate analysis, this quantitative method of
            data sources for training. Given the inherently multifaceted   assessing skin inflammatory disorders such as AD offers a
            nature of medicine, where doctors must interpret a wide   viable path for next-generation diagnosis, departing from
            range of data, including genetic information, laboratory   the subjective scoring systems currently used in clinical
            results, clinical notes, and radiological images, these   practice. The presented study describes a novel diagnostic
            multimodal approaches have gained prominence.      method specific for AD using CRM and multivariate
            The latest strides in this discipline focus on building   analysis. This non-invasive method will provide a
            more reliable models and algorithms by leveraging the   new approach for molecular-based evaluation of skin
            abundance of readily available data. Noteworthy examples   conditions. Nevertheless, several challenges need to be
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            of these multimodal technologies include Med-Flamingo,    addressed, such as sample size and diversity, independent
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            LLaVa-Med,  Med-PaLM Multimodal (Med-PaLM M),      dataset validation, clinical utility assessment, CRM
            and MiniGPT-4.  At the core of these technologies, they   standardization across different laboratories, patient data
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            lie foundation models (FMs), which undergo training   privacy and informed consent ethics issues, equipment
            on a variety of unlabeled datasets before being adjusted   accessibility,  and  cost.  Regulatory approval  for CRM
            for certain downstream applications.  One particularly   technology’s widespread use is also necessary. Overcoming
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            intriguing aspect is the ability of these models to absorb   these issues will improve the power and generalizability of
            vast amounts of information from large datasets and   this innovative diagnostic protocol for AD. Furthermore,
            subsequently apply this knowledge to specific applications,   the application assures the availability of significant
            including those within the medical domain. This pattern   datasets and ensures the repeatability and reliability of the
            represents a dynamic movement in the direction of using   model.
            multimodal techniques to improve performance in medical   Multiphoton tomography (MPT) has previously
            applications.                                      demonstrated its utility as a diagnostic tool in dermatology.
                                                               However, MPT data analysis has remained time-consuming
            4. AI for the diagnosis of AD                      and  operator-dependent.  In a  study  conducted  by
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            Accurate dermatological diagnosis and treatment of   Guimarães et al.,  the potential of using AI for diagnosing
            AD hinge on the quantitative evaluation of the disease,   AD from MPT images was substantiated. AD system was
            which emphasizes the molecular composition of the skin   developed  to  discern  images  containing  living  cells  and
            using non-invasive techniques. Confocal Raman micro-  performs subsequent diagnostics accurately and reliably,
            spectroscopy (CRM) serves as a tool for assessing the skin’s   thus eliminating the need for human operators. The study
            biomolecular  composition.  Nevertheless,  deciphering   has demonstrated the potential of completely harnessing
            complex Raman spectroscopic signals requires multivariate   MPT  through  a CNN-based, fully automatic  method.
            analysis. Dev et al.  have presented a novel approach to   CNNs were trained and fine-tuned using 3663 MPT images,
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            classifying AD from healthy individuals by combining   including morphological and metabolic information from
            CRM with multivariate analysis, more precisely, partial   both AD patients and healthy individuals. The primary
            least squares discriminant analysis (PLS-DA). While the   objectives were to identify live cells and diagnose AD,
            current PLS-DA classification model is designed for binary   irrespective of the imaging layer or location. Impressively,
            classification, there is potential to explore its applicability   the suggested algorithm successfully diagnosed AD in
            for multiclass categorization based on the severity of   97.0±0.2% of the images containing live cells, with a
            eczema illness. The ML-aided PLS-DA classification   sensitivity of 0.966±0.003, specificity of 0.977±0.003,
            approach  used  in the study  simplifies  dimensional   and  F-score of 0.964±0.002. The interpretability of the
            reduction, variable selection, and classification for Raman   algorithm was enhanced using relevance propagation
            micro-spectroscopy data. The cross-validated PLS-DA   through deep Taylor decomposition, generating heat maps
            classification model exhibits remarkable sensitivity and   that highlighted important details for each classification.
            specificity, scoring 0.94 and 0.85, respectively. Further   The study exemplifies the successful integration of MPT


            Volume 1 Issue 2 (2024)                         51                               doi: 10.36922/aih.2775
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