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  1. Article ; Online: Risk stratification prior to non-cardiac surgery: the role of cardiac CT and MR imaging is underrecognized.

    Alkadhi, Hatem / Baettig, Eduardo / Biondo, Andrea / Francone, Marco / Manka, Robert

    European radiology

    2023  Volume 33, Issue 12, Page(s) 8436–8438

    MeSH term(s) Humans ; Tomography, X-Ray Computed/methods ; Thorax ; Risk Assessment ; Magnetic Resonance Imaging/methods
    Language English
    Publishing date 2023-07-11
    Publishing country Germany
    Document type Editorial
    ZDB-ID 1085366-2
    ISSN 1432-1084 ; 0938-7994 ; 1613-3749
    ISSN (online) 1432-1084
    ISSN 0938-7994 ; 1613-3749
    DOI 10.1007/s00330-023-09893-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Virtual calcium removal in calcified coronary arteries with photon-counting detector CT-first

    Mergen, Victor / Rusek, Stéphane / Civaia, Filippo / Rossi, Philippe / Rajagopal, Rengarajan / Bättig, Eduardo / Manka, Robert / Candreva, Alessandro / Eberhard, Matthias / Alkadhi, Hatem

    Frontiers in cardiovascular medicine

    2024  Volume 11, Page(s) 1367463

    Abstract: Purpose: To evaluate the feasibility and accuracy of quantification of calcified coronary stenoses using virtual non-calcium (VNCa) images in coronary CT angiography (CCTA) with photon-counting detector (PCD) CT compared with quantitative coronary ... ...

    Abstract Purpose: To evaluate the feasibility and accuracy of quantification of calcified coronary stenoses using virtual non-calcium (VNCa) images in coronary CT angiography (CCTA) with photon-counting detector (PCD) CT compared with quantitative coronary angiography (QCA).
    Materials and methods: This retrospective, institutional-review board approved study included consecutive patients with calcified coronary artery plaques undergoing CCTA with PCD-CT and invasive coronary angiography between July and December 2022. Virtual monoenergetic images (VMI) and VNCa images were reconstructed. Diameter stenoses were quantified on VMI and VNCa images by two readers. 3D-QCA served as the standard of reference. Measurements were compared using Bland-Altman analyses, Wilcoxon tests, and intraclass correlation coefficients (ICC).
    Results: Thirty patients [mean age, 64 years ± 8 (standard deviation); 26 men] with 81 coronary stenoses from calcified plaques were included. Ten of the 81 stenoses (12%) had to be excluded because of erroneous plaque subtraction on VNCa images. Median diameter stenosis determined on 3D-QCA was 22% (interquartile range, 11%-35%; total range, 4%-88%). As compared with 3D-QCA, VMI overestimated diameter stenoses (mean differences -10%,
    Conclusion: First experience in mainly minimal to moderate stenoses suggests that virtual calcium removal in CCTA with PCD-CT, when feasible, has the potential to improve the quantification of calcified stenoses.
    Language English
    Publishing date 2024-02-22
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2781496-8
    ISSN 2297-055X
    ISSN 2297-055X
    DOI 10.3389/fcvm.2024.1367463
    Database MEDical Literature Analysis and Retrieval System OnLINE

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