Recent Developments and Future Trends in Thoracic Imaging

A special issue of Diagnostics (ISSN 2075-4418). This special issue belongs to the section "Medical Imaging and Theranostics".

Deadline for manuscript submissions: 31 December 2024 | Viewed by 1774

Special Issue Editor


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Guest Editor
Department of Radiology and Medical Imaging, Faculty of Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
Interests: medical imaging; artificial intelligence; computer-assisted image analysis; computed tomography; magnetic resonance imaging; cerebral diseases; lung diseases; gastrointestinal diseases

Special Issue Information

Dear Colleagues,

Recent developments and new technical imaging applications need to analysed, including the use of ultra-low-dose (ULD) CT techniques, which allow for imaging of the chest with radiation doses similar to that of a chest X-ray. These techniques, combined with novel reconstruction methods, show promise for use in CT lung cancer screening. Another advancement is the introduction of photon-counting detector (PCD) technology. This technology provides high spatial resolution and low-noise imaging of interstitial lung disease, as well as improved spectral imaging capabilities. These innovations have the potential to enhance the accuracy and efficiency of thoracic imaging. Furthermore, radiomics and artificial intelligence, a rapidly evolving technology, has the potential to support treatment selection and predict oncological outcomes.

Dr. Ioana Andreea Gheonea
Guest Editor

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Keywords

  • X-ray
  • computed tomography
  • magnetic resonance imaging
  • ultra-low-dose CT
  • photon-counting CT
  • oncology
  • artificial intelligence
  • emergency radiology
  • thoracic trauma
 

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Published Papers (2 papers)

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Research

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11 pages, 2309 KiB  
Article
Radiomics Feature Stability in True and Virtual Non-Contrast Reconstructions from Cardiac Photon-Counting Detector CT Datasets
by Luca Canalini, Elif G. Becker, Franka Risch, Stefanie Bette, Simon Hellbrueck, Judith Becker, Katharina Rippel, Christian Scheurig-Muenkler, Thomas Kroencke and Josua A. Decker
Diagnostics 2024, 14(22), 2483; https://doi.org/10.3390/diagnostics14222483 - 7 Nov 2024
Viewed by 363
Abstract
Objectives: Virtual non-contrast (VNC) series reconstructed from contrast-enhanced cardiac scans acquired with photon counting detector CT (PCD-CT) systems have the potential to replace true non-contrast (TNC) series. However, a quantitative comparison of the image characteristics of TNC and VNC data is necessary [...] Read more.
Objectives: Virtual non-contrast (VNC) series reconstructed from contrast-enhanced cardiac scans acquired with photon counting detector CT (PCD-CT) systems have the potential to replace true non-contrast (TNC) series. However, a quantitative comparison of the image characteristics of TNC and VNC data is necessary to determine to what extent they are interchangeable. This work quantitatively evaluates the image similarity between VNC and TNC reconstructions by measuring the stability of multi-class radiomics features extracted in intra-patient TNC and VNC reconstructions. Methods: TNC and VNC series of 84 patients were retrospectively collected. For each patient, the myocardium and epicardial adipose tissue (EAT) were semi-automatically segmented in both VNC and TNC reconstructions, and 105 radiomics features were extracted in each mask. Intra-feature correlation scores were computed using the intraclass correlation coefficient (ICC). Stable features were defined with an ICC higher than 0.75. Results: In the myocardium, 41 stable features were identified, and the three with the highest ICC were glrlm_GrayLevelVariance with ICC3 of 0.98 [0.97, 0.99], ngtdm_Strength with ICC3 of 0.97 [0.95, 0.98], firstorder_Variance with ICC3 of 0.96 [0.94, 0.98]. For the epicardial fat, 40 stable features were found, and the three highest ranked are firstorder_Median with ICC3 of 0.96 [0.93, 0.97], firstorder_RootMeanSquared with ICC3 of 0.95 [0.92, 0.97], firstorder_Mean with ICC3 of 0.95 [0.92, 0.97]. A total of 24 features (22.8%; 24/105) showed stability in both anatomical structures. Conclusions: The significant differences in the correlation of radiomics features in VNC and TNC volumes of the myocardium and epicardial fat suggested that the two reconstructions may differ more than initially assumed. This indicates that they may not be interchangeable, and such differences could have clinical implications. Therefore, care should be given when selecting VNC as a substitute for TNC in radiomics research to ensure accurate and reliable analysis. Moreover, the observed variations may impact clinical workflows, where precise tissue characterization is critical for diagnosis and treatment planning. Full article
(This article belongs to the Special Issue Recent Developments and Future Trends in Thoracic Imaging)
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Review

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16 pages, 21964 KiB  
Review
Osteosarcoma Metastasis to the Thorax: A Pictorial Review of Chest Computed Tomography Findings
by Khalid Abdulaziz Alduraibi, Jawaher Ali Towhari, Hatim Abdullah Alebdi, Bader Zaid Alfadhel, Ghazi S. Alotaibi, Subha Ghosh and Mnahi Bin Saeedan
Diagnostics 2024, 14(18), 2085; https://doi.org/10.3390/diagnostics14182085 - 20 Sep 2024
Viewed by 909
Abstract
Background: Osteosarcoma, a primary bone malignancy in children and adolescents, frequently metastasizes to the lungs, contributing significantly to morbidity and mortality. Lung Metastases: At diagnosis, 15–20% of patients present with detectable lung metastases. Chest computed tomography (CT) is vital for the early detection [...] Read more.
Background: Osteosarcoma, a primary bone malignancy in children and adolescents, frequently metastasizes to the lungs, contributing significantly to morbidity and mortality. Lung Metastases: At diagnosis, 15–20% of patients present with detectable lung metastases. Chest computed tomography (CT) is vital for the early detection and monitoring of these metastases. Lung involvement typically presents as multiple nodules of varying sizes and can include atypical features such as cavitation, cystic lesions, ground-glass halos, intravascular tumor thrombi, and endobronchial disease. Additional Findings: Pleural metastasis often occurs alongside pulmonary disease, and complications like spontaneous pneumothorax may arise. Additional findings may include thoracic lymphadenopathy, cardiac tumor thrombus, and chest wall deposits. Conclusion: Familiarity with these imaging patterns is essential for radiologists to ensure timely diagnosis and effective management. This review highlights the critical role of chest CT in detecting and characterizing osteosarcoma metastasis. Full article
(This article belongs to the Special Issue Recent Developments and Future Trends in Thoracic Imaging)
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