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Quantification of Aortic Valve Fibrotic and Calcific Tissue from CTA: Prospective Comparison with Histology.
Grodecki, Kajetan; Olasinska-Wisniewska, Anna; Cyran, Agata; Urbanowicz, Tomasz; Kwiecinski, Jacek; Geers, Jolien; Tamarappoo, Balaji K; Perek, Bartlomiej; Gocol, Radoslaw; Nawara-Skipirzepa, Joanna; Jemielity, Marek; Kochman, Janusz; Wojakowski, Wojciech; Górnicka, Barbara; Slomka, Piotr J; Jilaihawi, Hasan; Makkar, Raj R; Huczek, Zenon; Dey, Damini.
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  • Grodecki K; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
  • Olasinska-Wisniewska A; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
  • Cyran A; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
  • Urbanowicz T; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
  • Kwiecinski J; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
  • Geers J; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
  • Tamarappoo BK; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
  • Perek B; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
  • Gocol R; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
  • Nawara-Skipirzepa J; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
  • Jemielity M; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
  • Kochman J; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
  • Wojakowski W; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
  • Górnicka B; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
  • Slomka PJ; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
  • Jilaihawi H; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
  • Makkar RR; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
  • Huczek Z; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
  • Dey D; From the First Department of Cardiology (K.G., J. Kochman, Z.H.) and Department of Pathology (A.C., B.G.), Medical University of Warsaw, Warsaw, Poland; Departments of Biomedical Sciences and Medicine, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N Robertson Blvd, Suite 40
Radiology ; 312(2): e240229, 2024 08.
Article en En | MEDLINE | ID: mdl-39136569
ABSTRACT
Background Quantifying the fibrotic and calcific composition of the aortic valve at CT angiography (CTA) can be useful for assessing disease severity and outcomes of patients with aortic stenosis (AS); however, it has not yet been validated against quantitative histologic findings. Purpose To compare quantification of aortic valve fibrotic and calcific tissue composition at CTA versus histologic examination. Materials and Methods This prospective study included patients who underwent CTA before either surgical aortic valve replacement for AS or orthotopic heart transplant (controls) at two centers between January 2022 and April 2023. At CTA, fibrotic and calcific tissue composition were quantified using automated Gaussian mixture modeling applied to the density of aortic valve tissue components, calculated as [(volume/total tissue volume) × 100]. For histologic evaluation, explanted valve cusps were stained with Movat pentachrome as well as hematoxylin and eosin. For each cusp, three 5-µm slices were obtained. Fibrotic and calcific tissue composition were quantified using a validated artificial intelligence tool and averaged across the aortic valve. Correlations were assessed using the Spearman rank correlation coefficient. Intermodality and interobserver variability were measured using the intraclass correlation coefficient (ICC) and Bland-Altman plots. Results Twenty-nine participants (mean age, 63 years ± 10 [SD]; 23 male) were evaluated 19 with severe AS, five with moderate AS, and five controls. Fibrocalcific tissue composition strongly correlated with histologic findings (r = 0.92; P < .001). The agreement between CTA and histologic findings for fibrocalcific tissue quantification was excellent (ICC, 0.94; P = .001), with underestimation of fibrotic composition at CTA (bias, -4.9%; 95% limits of agreement [LoA] -18.5%, 8.7%). Finally, there was excellent interobserver repeatability for fibrotic (ICC, 0.99) and calcific (ICC, 0.99) aortic valve tissue volume measurements, with no evidence of a difference in measurements between readers (bias, -0.04 cm3 [95% LoA -0.27 cm3, 0.19 cm3] and 0.02 cm3 [95% LoA -0.14 cm3, 0.19 cm3], respectively). Conclusion In a direct comparison, standardized quantitative aortic valve tissue characterization at CTA showed excellent concordance with histologic findings and demonstrated interobserver reproducibility. Clinical trial registration no. NCT06136689 Published under a CC BY 4.0 license. Supplemental material is available for this article. See also the editorial by Almeida in this issue.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Válvula Aórtica / Estenosis de la Válvula Aórtica / Fibrosis / Calcinosis / Angiografía por Tomografía Computarizada Límite: Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Radiology Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Válvula Aórtica / Estenosis de la Válvula Aórtica / Fibrosis / Calcinosis / Angiografía por Tomografía Computarizada Límite: Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Radiology Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos