Fulltext

Quantification of pleural effusion from single area measurements on CT

Veljkovic, Branislav ; Franckenberg, Sabine ; Hatch, Gary ; Bucher, Matthias ; Schwendener, Nicole ; Ampanozi, Garyfalia ; Thali, Michael ; Ruder, Thomas

In: Emergency Radiology, 2013, vol. 20, no. 4, p. 285-289

Zum persönliche Liste hinzufügen
    Titel
    • Quantification of pleural effusion from single area measurements on CT
    Autor
    • Veljkovic, Branislav. Department of Internal Medicine, Kantonsspital Baselland, CH-4101, Bruderholz, Switzerland
    • Franckenberg, Sabine. Department of Forensic Medicine and Imaging, Institute of Forensic Medicine, University of Zurich, Winterthurerstrasse 190/52, CH-8057, Zurich, Switzerland
    • Hatch, Gary. Radiology-Pathology Center for Forensic Imaging, Departments of Radiology and Pathology, University of New Mexico, MSC07 4040, 1101 Camino de Salud NE, 87102, Albuquerque, NM, USA
    • Bucher, Matthias. Department of Forensic Medicine and Imaging, Institute of Forensic Medicine, University of Zurich, Winterthurerstrasse 190/52, CH-8057, Zurich, Switzerland
    • Schwendener, Nicole. Department of Forensic Medicine and Imaging, Institute of Forensic Medicine, University of Zurich, Winterthurerstrasse 190/52, CH-8057, Zurich, Switzerland
    • Ampanozi, Garyfalia. Department of Forensic Medicine and Imaging, Institute of Forensic Medicine, University of Zurich, Winterthurerstrasse 190/52, CH-8057, Zurich, Switzerland
    • Thali, Michael. Department of Forensic Medicine and Imaging, Institute of Forensic Medicine, University of Zurich, Winterthurerstrasse 190/52, CH-8057, Zurich, Switzerland
    • Ruder, Thomas. Department of Forensic Medicine and Imaging, Institute of Forensic Medicine, University of Zurich, Winterthurerstrasse 190/52, CH-8057, Zurich, Switzerland
    Dokumententyp
    • Postprint
    Sprache
    • Englisch
    Veröffentlicht in
    • Emergency Radiology, 2013, vol. 20, no. 4, p. 285-289. Springer Berlin Heidelberg
    Andere elektronische Ausgabe
    OAI-PMH-ID
    • oai:doc.rero.ch:321391
    Summary
    The objective of this study was to determine if area measurements of pleural fluid on computed tomography (CT) reflect the actual pleural fluid volume (PEvol) as measured at autopsy, to establish a formula to estimate the volume of pleural effusion (PEest), and to test the accuracy and observer reliability of PEest.132 human cadavers, with pleural effusion were divided into phase 1 (n = 32) and phase 2 (n = 100). In phase 1, PEvol was compared to area measurements on axial (axA), sagittal (sagA), and coronal (corA) CT images. Linear regression analysis was used to create a formula to calculate PEest. In phase 2, intra-class correlation (ICC) was used to assess inter-reader reliability and determine the agreement between PEest and PEvol. PEvol correlated to a higher degree to axA (r s mean = 0.738; p < 0.001) than to sagA (r s mean = 0.679, p < 0.001) and corA (r s mean = 0.709; p < 0.001). PEest can be established with the following formula: axA × 0.1 = PEest. Mean difference between PEest and PEvol was less than 40mL (ICC = 0.837-0.874; p < 0.001). Inter-reader reliability was higher between two experienced readers (ICC = 0.984-0.987; p < 0.001) than between an inexperienced reader and both experienced readers (ICC = 0.660-0.698; p < 0.001). Pleural effusions may be quantified in a rapid, reliable, and reasonably accurate fashion using single area measurements on CT