Recent Developments in Biomedical Imaging: New Technologies and Instruments

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Biomedical Engineering".

Deadline for manuscript submissions: 25 September 2024 | Viewed by 532

Special Issue Editor


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Guest Editor
Mathematics Research Centre, Academy of Athens, 11527 Athens, Greece
Interests: tomography; mathematical optimization; cancer informatics and physics
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Special Issue Information

Dear Colleagues,

The aim of this Special Issue is to showcase novel imaging methods and approaches, including device and system development, novel methods of acquisition and reconstruction, the synthesis of imaging contrast, and image processing and computational analysis. Aside from imaging, other research areas of interest include methods to combine different omics groups, computer-aided diagnosis, and novel image-guided interventions.

Dr. Nikolaos Dikaios
Guest Editor

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Keywords

  • biomedical imaging
  • biomedical instrumentation
  • multiomics
  • computer-aided diagnosis
  • image-guided interventions

Published Papers (1 paper)

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Research

20 pages, 4766 KiB  
Article
Research on Human Lung Impedance Tomography Based on Soft Thresholding Image Segmentation and Reduced-Order Tikhonov Regularization
by Yang Song, Lan Xiong, Zhenyou Liu, Yongye Wu and Zhanlong Zhang
Appl. Sci. 2024, 14(8), 3309; https://doi.org/10.3390/app14083309 - 15 Apr 2024
Viewed by 352
Abstract
The lung is one of the most vital organs in the human body, and its condition is closely correlated with overall health. Electrical impedance tomography (EIT), as a biomedical imaging technique, often produces low-quality reconstructed images due to its inherent ill-posedness in solving [...] Read more.
The lung is one of the most vital organs in the human body, and its condition is closely correlated with overall health. Electrical impedance tomography (EIT), as a biomedical imaging technique, often produces low-quality reconstructed images due to its inherent ill-posedness in solving the inverse problem. To address this issue, this paper proposes a soft-threshold region segmentation algorithm with a relaxation factor. This algorithm segments the reconstructed lung images into internal regions, edge regions, and background regions, resulting in clearer boundaries in the reconstructed images. This facilitates the intuitive identification of regions of interest by healthcare professionals. Additionally, this segmentation algorithm is suitably combined with a dimension-reduced Tikhonov regularization algorithm. By utilizing the joint capabilities of these algorithms, the partition points belonging to the background region can be excluded from the sought grayscale vector, thereby improving the ill-posedness of the image reconstruction process and enhancing the quality of image reconstruction. Finally, a 16-electrode human lung EIT simulation model is established for the thoracic region and verified through simulation. Experimental validation is conducted using a human lung tank simulation platform to further demonstrate the effectiveness of the proposed method. Full article
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