Development of a Novel Medical Device for Mucositis and Peri-Implantitis Treatment

Cosoli, Gloria; Scalise, Lorenzo; Leo, Alfredo De; Russo, Paola; Tricarico, Gerardo; Tomasini, Enrico Primo; Cerri, G.

doi:10.3390/bioengineering7030087

Cited by 3 publications

(5 citation statements)

References 63 publications

(87 reference statements)

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“…Currently, there are various new technologies and devices that assist in clinical diagnostic work [12,24,8], among which medical image segmentation plays an important role in clinical auxiliary diagnosis [44]. Recently, researchers have made great efforts in medical image segmentation [31,53,11] and achieved excellent performance with a large amount of labeled data.…”

Section: Introductionmentioning

confidence: 99%

Semi-Supervised Medical Image Segmentation with Co-Distribution Alignment

Wang

Huang

et al. 2023

Bioengineering

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Medical image segmentation has made significant progress when a large amount of labeled data are available. However, annotating medical image segmentation datasets is expensive due to the requirement of professional skills. Additionally, classes are often unevenly distributed in medical images, which severely affects the classification performance on minority classes. To address these problems, this paper proposes Co-Distribution Alignment (Co-DA) for semi-supervised medical image segmentation. Specifically, Co-DA aligns marginal predictions on unlabeled data to marginal predictions on labeled data in a class-wise manner with two differently initialized models before using the pseudo-labels generated by one model to supervise the other. Besides, we design an over-expectation cross-entropy loss for filtering the unlabeled pixels to reduce noise in their pseudo-labels. Quantitative and qualitative experiments on three public datasets demonstrate that the proposed approach outperforms existing state-of-the-art semi-supervised medical image segmentation methods on both the 2D CaDIS dataset and the 3D LGE-MRI and ACDC datasets, achieving an mIoU of 0.8515 with only 24% labeled data on CaDIS, and a Dice score of 0.8824 and 0.8773 with only 20% data on LGE-MRI and ACDC, respectively.

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Section: Introductionmentioning

confidence: 99%

Semi-Supervised Medical Image Segmentation with Co-Distribution Alignment

Wang

Huang

et al. 2023

Bioengineering

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“…Tumors and inflammatory changes, muscles, tendons, intervertebral discs and joints can, therefore, be particularly well-represented. Magnetic resonance imaging (MRI) techniques, like other medical approaches, such as dental implantology [1], the vascularization of engineered tissues [2] and synthetic bone graft substitution (BGS) [3], are constantly evolving with the aim of improving the image quality and broadening the spectrum of applications. These developments have led to considerable improvements in the spatial and temporal resolution of diagnostic MRI images, and to the development of functional and interventional MRIs.…”

Section: Introductionmentioning

confidence: 99%

Sophisticated Study of Time, Frequency and Statistical Analysis for Gradient-Switching-Induced Potentials during MRI

Bouzrara,

Fokapu,

Fakhfakh

et al. 2023

Bioengineering

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Magnetic resonance imaging (MRI) is a standard procedure in medical imaging, on a par with echography and tomodensitometry. In contrast to radiological procedures, no harmful radiation is produced. The constant development of magnetic resonance imaging (MRI) techniques has enabled the production of higher resolution images. The switching of magnetic field gradients for MRI imaging generates induced voltages that strongly interfere with the electrophysiological signals (EPs) collected simultaneously. When the bandwidth of the collection amplifiers is higher than 150 Hz, these induced voltages are difficult to eliminate. Understanding the behavior of these artefacts contributes to the development of new digital processing tools for better quality EPs. In this paper, we present a study of induced voltages collected in vitro using a device (350 Hz bandwidth). The experiments were conducted on a 1.5T MRI machine with two MRI sequences (fast spin echo (FSE) and cine gradient echo (CINE)) and three slice orientations. The recorded induced voltages were then segmented into extract patterns called “artefact puffs”. Two analysis series, “global” and “local”, were then performed. The study found that the temporal and frequency characteristics were specific to the sequences and orientations of the slice and that, despite the pseudo-periodic character of the artefacts, the variabilities within the same recording were significant. These evolutions were confirmed by two stationarity tests: the Kwiatkowski–Phillips–Schmidt–Shin (KPSS) and the time-frequency approach. The induced potentials, all stationary at the global scale, are no longer stationary at the local scale, which is an important issue in the design of optimal filters adapted to reduce MRI artifacts contaminating a large bandwidth, which varies between 0 and 500 Hz.

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“…It is, therefore, essential to have a broad knowledge of the applicable therapies, especially in the recent pandemic period, during which educational activities suffered a marked reduction [ 7 ]. This collection of articles [ 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 ], published in Bioengineering, includes novel restorative solutions for natural teeth and implants. They represent a journey through the different treatment options, relating to different clinical situations.…”

mentioning

confidence: 99%

“…In the second part, implant-related solutions will be described [ 14 , 15 ], including a calculation of stress concentration area on mandibular structure [ 9 ], novel prosthetic solutions for the appropriate veneering protocol for posterior implant-supported hybrid-abutment restorations [ 15 ], or a 3D-printed approach to creating an anatomical cell-seeded scaffold [ 13 ]. Nevertheless, among the included articles, one paper focuses on how implant placement is not a risk-free procedure in terms of longevity and proposes a novel medical device to treat these diseases [ 16 ]. Despite all the developments in implantology, peri-implant diseases [ 17 ], resulting from an improper balance between bacterial load and host defense, are frequent.…”

mentioning

confidence: 99%

“…As previously stated, a gold-standard treatment for peri-implant disease is currently unavailable, and the success rate of the available treatment options is still unsatisfactory [ 108 ]. Hence, alternative therapeutic approaches are being evaluated, such as the electromedical device proposed by Cosoli et al [ 16 ]. This article describes a novel device that encompasses both a therapeutic function, based on electricity and electromagnetic radiation, and a diagnostic function, based on bioimpedance.…”

mentioning

confidence: 99%

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