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Cross-sectional area measurements versus volumetric assessment of the quadriceps femoris muscle in patients with anterior cruciate ligament reconstructions

Marcon, Magda ; Ciritsis, Bernhard ; Laux, Christoph ; Nanz, Daniel ; Nguyen-Kim, Thi ; Fischer, Michael ; Andreisek, Gustav ; Ulbrich, Erika

In: European Radiology, 2015, vol. 25, no. 2, p. 290-298

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    Titre
    • Cross-sectional area measurements versus volumetric assessment of the quadriceps femoris muscle in patients with anterior cruciate ligament reconstructions
    Auteur
    • Marcon, Magda. Department of Radiology, University Hospital Zurich, Ramistrasse 100, 8091, Zurich, Switzerland
    • Ciritsis, Bernhard. Department of Traumatology, University Hospital Zurich, Ramistrasse 100, 8091, Zurich, Switzerland
    • Laux, Christoph. Department of Traumatology, University Hospital Zurich, Ramistrasse 100, 8091, Zurich, Switzerland
    • Nanz, Daniel. Department of Radiology, University Hospital Zurich, Ramistrasse 100, 8091, Zurich, Switzerland
    • Nguyen-Kim, Thi. Department of Radiology, University Hospital Zurich, Ramistrasse 100, 8091, Zurich, Switzerland
    • Fischer, Michael. Department of Radiology, University Hospital Zurich, Ramistrasse 100, 8091, Zurich, Switzerland
    • Andreisek, Gustav. Department of Radiology, University Hospital Zurich, Ramistrasse 100, 8091, Zurich, Switzerland
    • Ulbrich, Erika. Department of Radiology, University Hospital Zurich, Ramistrasse 100, 8091, Zurich, Switzerland
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • European Radiology, 2015, vol. 25, no. 2, p. 290-298. Springer Berlin Heidelberg
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:331921
    Summary
    Objective: Our aim was to validate the use of cross-sectional area (CSA) measurements at multiple quadriceps muscle levels for estimating the total muscle volume (TMV), and to define the best correlating measurement level. Methods: Prospective institutional review board (IRB)-approved study with written informed patient consent. Thighs of thirty-four consecutive patients with ACL-reconstructions (men, 22; women, 12) were imaged at 1.5-T using three-dimensional (3D) spoiled dual gradient-echo sequences. CSA was measured at three levels: 15, 20, and 25cm above the knee joint line. TMV was determined using dedicated volumetry software with semiautomatic segmentation. Pearson's correlation and regression analysis (including standard error of the estimate, SEE) was used to compare CSA and TMV. Results: The mean ± standard deviation (SD) for the CSA was 60.6 ± 12.8cm2 (range, 35.6-93.4cm2), 71.1 ± 15.1cm2 (range, 42.5-108.9cm2) and 74.2 ± 17.1cm2 (range, 40.9-115.9cm2) for CSA-15, CSA-20 and CSA-25, respectively. The mean ± SD quadriceps' TMV was 1949 ± 533.7cm3 (range, 964.0-3283.0cm3). Pearson correlation coefficient was r = 0.835 (p < 0.01), r = 0.906 (p < 0.01), and r = 0.956 (p < 0.01) for CSA-15, CSA-20 and CSA-25, respectively. Corresponding SEE, expressed as percentage of the TMV, were 15.2%, 11.6% and 8.1%, respectively. Conclusion: The best correlation coefficient between quadriceps CSA and TMV was found for CSA-25, but its clinical application to estimate the TMV is limited by a relatively large SEE. Key points: • Cross-sectional area was used to estimate QFM size in patients with ACL-reconstruction • A high correlation coefficient exists between quadriceps CSA and volume • Best correlation was seen 25cm above the knee joint line • A relatively large standard error of the estimate limits CSA application