MRI diagnosis of ACL bundle tears: value of oblique axial imaging.

Skeletal Radiology
Alex W H NgPatrick S H Yung

Abstract

To investigate the diagnostic accuracy of oblique axial intermediate weighting MR imaging in detecting partial thickness anterior cruciate ligament (ACL) bundle tears. The study protocol was approved by the institutional ethics committee. Sixty-one subjects (43 male, 18 female; mean age 27.4 years; range 9 to 57 years) with clinically suspected ACL tear or meniscal tear between September 2009 and January 2011 were studied with MRI and arthroscopy. Detection of partial tear for the ACL as a whole and for each ACL bundle by protocol A (standard orthogonal sequences) and protocol B (standard orthogonal sequences plus oblique axial intermediate weighted imaging) was compared in a blinded fashion. Performance characteristics for protocol A and protocol B were compared using sensitivity, specificity, accuracy and ROC curves. A two-tailed p value of <0.05 indicated statistical significance. Fifteen (24.6%) normal, 15 (24.6%) partial and 31 complete tears were diagnosed by arthroscopy. Sensitivity, specificity and accuracy of protocol A for the diagnosis of partial tear of the ACL was 33%, 87% and 74%, while for protocol B the values were 87%, 87% and 87% respectively. The area under the curve (AUC) for the diagnosis of partial ACL tea...Continue Reading

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Citations

Dec 3, 2014·Magnetic Resonance Imaging Clinics of North America·Ali Naraghi, Lawrence M White
Feb 16, 2013·European Journal of Orthopaedic Surgery & Traumatology : Orthopédie Traumatologie·N LefevreS Herman
Aug 21, 2013·Skeletal Radiology·Alex W H NgJames F Griffith
Apr 23, 2013·Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association·Daisuke ArakiMasahiro Kurosaka
Oct 7, 2014·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Nobuo AdachiGoki Kamei
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Jul 3, 2021·Diagnostics·Eva-Maria WinkelmeyerSven Nebelung
Jun 17, 2021·AJR. American Journal of Roentgenology·James F Griffith
Dec 4, 2021·Seminars in Musculoskeletal Radiology·James Francis Griffith

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