Accuracy of 64-section MDCT in the diagnosis of cruciate ligament tears.

Autor: Heffernan EJ; Department of Radiology, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland. Electronic address: e.heffernan@st-vincents.ie., Moran DE; Department of Radiology, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland., Gerstenmaier JF; Department of Radiology, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland., McCarthy CJ; Department of Radiology, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland., Hegarty C; Department of Radiology, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland., McMahon CJ; Department of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02215, USA.
Jazyk: angličtina
Zdroj: Clinical radiology [Clin Radiol] 2017 Jul; Vol. 72 (7), pp. 611.e1-611.e8. Date of Electronic Publication: 2017 Feb 16.
DOI: 10.1016/j.crad.2017.01.006
Abstrakt: Aim: To evaluate the accuracy of non-arthrographic 64-section multidetector computed tomography (CT) in the assessment of cruciate ligament tears. A secondary goal was to determine its accuracy in the diagnosis of additional soft-tissue injuries around the knee.
Materials and Methods: Forty consecutive outpatients underwent same-day magnetic resonance imaging (MRI) and 64-slice multidetector CT (MDCT) of the knee in this prospective study. MDCT images were independently evaluated for integrity of the anterior (ACL) and posterior cruciate ligaments (PCL), medial and lateral menisci, and medial and lateral collateral ligaments. Recognised secondary signs of ACL tears were also documented. MRI images were subsequently assessed by two radiologists and a consensus reached.
Results: The sensitivity of MDCT for ACL tears was 87.5-100%, with a specificity of 100%. The presence of one or more secondary signs of ACL tears on MDCT had a sensitivity of 50-87.5% with a specificity of 100%. The sensitivity of MDCT for PCL tears was 0-25% with a specificity of 100%. The sensitivity for meniscal tears was 9.1-23.1% with a specificity of 96.3-100%.
Conclusion: 64-section MDCT has very high sensitivity and specificity for ACL tears and, as on MRI, secondary signs, such as buckling of the PCL, are also useful in their diagnosis. MDCT has a low sensitivity for other soft-tissue injuries at the knee; however, its high specificity indicates that apparent PCL, meniscal, and collateral ligament tears can reliably be treated as true-positive findings.
(Copyright © 2017 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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