A new formula for rapid assessment of pericardial effusion volume by computed tomography
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A new formula for rapid assessment of pericardial effusion volume by computed tomography. / Groth, Michael; Regier, Marc; Muellerleile, Kai; Bannas, Peter; Adam, Gerhard; Henes, Frank Oliver.
in: ACAD RADIOL, Jahrgang 19, Nr. 6, 6, 06.2012, S. 718-722.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - A new formula for rapid assessment of pericardial effusion volume by computed tomography
AU - Groth, Michael
AU - Regier, Marc
AU - Muellerleile, Kai
AU - Bannas, Peter
AU - Adam, Gerhard
AU - Henes, Frank Oliver
N1 - Copyright © 2012 AUR. Published by Elsevier Inc. All rights reserved.
PY - 2012/6
Y1 - 2012/6
N2 - RATIONALE AND OBJECTIVES: The aim of this study was to evaluate a new formula for the rapid assessment of pericardial effusion (PE) volume by computed tomography.MATERIALS AND METHODS: Twenty computed tomographic scans positive for PE were reviewed by two observers. Diameters of PE were measured at four locations. Additionally, PE volume was assessed by volumetry. The correlation between PE diameters and volume was evaluated, and a linear equation was derived for each diameter location. To test validity and reliability of the measurements, intraclass correlation and Bland-Altman analysis were performed.RESULTS: Good validity was expressed by strong correlations between diameter measurements at all four locations and PE volume (all R values >0.80 and P values <.0001). Intraclass correlation (all coefficients >0.75) and Bland-Altman analysis revealed good interobserver and intraobserver reliability of diameter measurements. The best values were observed for apical diameter measurements. The following linear equation was derived for apical diameter measurements: PE volume = 296 (mL/cm) × apical diameter (cm) - 32 mL.CONCLUSIONS: PE volume can rapidly be assessed by apical PE diameter measurement using the simplified formula PE volume = 0.3 (L/cm) × apical diameter (cm).
AB - RATIONALE AND OBJECTIVES: The aim of this study was to evaluate a new formula for the rapid assessment of pericardial effusion (PE) volume by computed tomography.MATERIALS AND METHODS: Twenty computed tomographic scans positive for PE were reviewed by two observers. Diameters of PE were measured at four locations. Additionally, PE volume was assessed by volumetry. The correlation between PE diameters and volume was evaluated, and a linear equation was derived for each diameter location. To test validity and reliability of the measurements, intraclass correlation and Bland-Altman analysis were performed.RESULTS: Good validity was expressed by strong correlations between diameter measurements at all four locations and PE volume (all R values >0.80 and P values <.0001). Intraclass correlation (all coefficients >0.75) and Bland-Altman analysis revealed good interobserver and intraobserver reliability of diameter measurements. The best values were observed for apical diameter measurements. The following linear equation was derived for apical diameter measurements: PE volume = 296 (mL/cm) × apical diameter (cm) - 32 mL.CONCLUSIONS: PE volume can rapidly be assessed by apical PE diameter measurement using the simplified formula PE volume = 0.3 (L/cm) × apical diameter (cm).
KW - Humans
KW - Male
KW - Female
KW - Middle Aged
KW - Reproducibility of Results
KW - Sensitivity and Specificity
KW - Imaging, Three-Dimensional/methods
KW - Tomography, X-Ray Computed/methods
KW - Algorithms
KW - Radiographic Image Interpretation, Computer-Assisted/methods
KW - Pericardial Effusion/radiography
KW - Radiographic Image Enhancement/methods
KW - Humans
KW - Male
KW - Female
KW - Middle Aged
KW - Reproducibility of Results
KW - Sensitivity and Specificity
KW - Imaging, Three-Dimensional/methods
KW - Tomography, X-Ray Computed/methods
KW - Algorithms
KW - Radiographic Image Interpretation, Computer-Assisted/methods
KW - Pericardial Effusion/radiography
KW - Radiographic Image Enhancement/methods
U2 - 10.1016/j.acra.2012.01.008
DO - 10.1016/j.acra.2012.01.008
M3 - SCORING: Journal article
C2 - 22361034
VL - 19
SP - 718
EP - 722
JO - ACAD RADIOL
JF - ACAD RADIOL
SN - 1076-6332
IS - 6
M1 - 6
ER -
