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Artificial Intelligence in Health                       Asymmetric U-Net for enhanced spinal MRI segmentation



            1. Introduction                                    intervention, potentially preventing disease progression
                                                               and reducing the burden of chronic spinal conditions on
            Spinal diseases are among the most prevalent health issues   patients and healthcare systems. Studies have shown that
            in modern society. The pathogenesis of spine diagnostics   early intervention can significantly improve long-term
            involves understanding the underlying mechanisms   outcomes for patients with spinal conditions.  Accurate
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            and origins of spinal disorders, which is crucial for   diagnostics and early interventions can reduce healthcare
            accurate diagnosis and effective treatment. Modern spine   costs  by  decreasing  the  need  for  extensive  surgeries
            diagnostics has evolved significantly with advancements   and long-term care. Efficient diagnostic processes also
            in imaging technology, genetic research, and molecular   streamline patient management, optimizing resource
            biology, providing deeper insights into spinal pathologies.   utilization within healthcare systems.
            Pathogenesis in spine diagnostics refers to the study
            of how spinal diseases develop and progress. This    Accurate diagnosis of spinal conditions is critically
            includes degenerative diseases such as osteoarthritis and   dependent on the analysis provided by MRI. 9,13-14  High-
            intervertebral disc degeneration, as well as inflammatory   quality spine MRI segmentation is crucial for enabling
            conditions such as ankylosing spondylitis.  Degenerative   doctors to precisely locate and examine spinal structures,
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            spinal  disorders  often  involve  the  breakdown of   thereby facilitating the diagnosis of various spine-related
            intervertebral discs and facet joints. Factors such as aging,   diseases such as disc herniation and spinal deformities. 15,16
            mechanical stress, and genetic predisposition contribute   Accurate segmentation results are essential for assessing
            to the degeneration process. Studies have shown that   the severity of these conditions and developing effective
            mechanical loading and biochemical changes play    treatment plans.
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            significant roles in disc degeneration.  Diagnostic tools   To address the labor-intensive nature of medical
            such as magnetic resonance imaging (MRI) and computed   imaging tasks, there is a growing trend toward data-
            tomography (CT) scans allow for detailed visualization   driven  approaches  in  contemporary  medical  imaging
            of these changes.  Inflammatory spinal diseases, such as   technology. 17,18  Traditional image processing techniques,
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            ankylosing  spondylitis,  involve chronic  inflammation   such as thresholding,  edge detection,  and mathematical
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            of the spinal joints, which leads to pain and stiffness.   morphology,   have yielded  some  positive outcomes.
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            The pathogenesis of these diseases is linked to genetic   However, significant advancements have been made in
            markers such as HLA-B27.  Advanced diagnostic methods,   recent years with the advent of deep learning methods,
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            including MRI and blood tests for inflammatory markers,   particularly convolutional neural networks, which have
            are essential for early detection and monitoring.  Spinal   revolutionized  spine  medical  image  segmentation. 22,23
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            tumors’ pathogenesis includes genetic mutations and   Models such as U-Net,  DeepLab,  and Fully
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            environmental factors that lead to abnormal cell growth.   Convolutional Networks  have been extensively applied
            Diagnostic imaging, biopsy, and molecular testing are   to  spine  image  segmentation  tasks,  with  the  U-Net
            crucial in  identifying and characterizing  spinal tumors,   architecture achieving notable success. This model excels
            guiding treatment decisions. 6,7                   in extracting and representing feature information in MRI
                                                               medical image analysis.
              The advancements in spine diagnostics have a profound
            impact on modern healthcare, influencing clinical practice,   To further enhance U-Net’s ability to capture multi-
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            patient outcomes, and healthcare systems. Improved   scale information, Huang  et al. introduced U-Net++,
            imaging technologies, such as high-resolution MRI   which incorporates full-scale skip connections. This design
            and three-dimensional (3D) CT scans, provide detailed   effectively  aggregates  low-level  and  high-level  semantic
            visualization of spinal structures, enhancing diagnostic   information,  improving  segmentation  performance.
            accuracy.  The integration of genetic and molecular   However, the practical application of U-Net++ is
                   8,9
            diagnostics enables personalized treatment plans. By   challenged by the large size of spine medical images and
            understanding the genetic and molecular basis of spinal   the network’s complex structure, leading to prolonged
            diseases, clinicians can tailor therapies to individual   training times and reduced accuracy due to the intricate
            patients, improving efficacy and reducing adverse effects.    nature of spinal images.
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            Advances in diagnostic imaging have facilitated the   This study proposes an innovative and efficient spine
            development of minimally invasive surgical techniques.   segmentation method called “J-Unet” network to overcome
            Real-time imaging guidance during procedures minimizes   these limitations and improve model accuracy while
            tissue  damage,  reduces  recovery  time, and  lowers   reducing training costs. Our approach includes optimizing
            the risk of complications.  Early detection of spinal   multi-scale skip connection paths and deepening the
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            disorders through advanced diagnostics allows for timely   network depth of the upsampling component to capture

            Volume 2 Issue 1 (2025)                         43                               doi: 10.36922/aih.3889
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