Interposition of the Posterior Cruciate Ligament into the Medial Compartment of the Knee Joint on Coronal Magnetic Resonance Imaging

Kim, Hyun Su; Yoon, Young Cheol; Park, Ki Jeong; Wang, Joon Ho; Choe, Bong-Keun

doi:10.3348/kjr.2016.17.2.239

Cited by 4 publications

(1 citation statement)

References 21 publications

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“…A more detailed evaluation of the complex course of cruciate ligament and complex meniscal tear requires multiplanar imaging. The imaging time (scan time) is usually long for knee MRI ( 4 5 6 ).The radiologist should select imaging pulse sequences and planes within a limited time; a routine knee protocol for IDK includes T2-weighted fast spin echo (FSE) sequence or proton density (PD)-weighted FSE sequence in two or three orthogonal planes, and at least one T1-weighted sequence is usually used for ligamentous structures, including articular cartilage, and meniscus and bone lesions ( 1 7 8 ).…”

Section: Introductionmentioning

confidence: 99%

Clinical Feasibility of Synthetic Magnetic Resonance Imaging in the Diagnosis of Internal Derangements of the Knee

Lee

Song

2018

Korean J Radiol

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ObjectiveTo evaluate the feasibility of synthetic magnetic resonance imaging (MRI) compared to conventional MRI for the diagnosis of internal derangements of the knee at 3T.Materials and MethodsFollowing Institutional Review Board approval, image sets of conventional and synthetic MRI in 39 patients were included. Two musculoskeletal radiologists compared the image sets and qualitatively analyzed the images. Subjective image quality was assessed using a four-grade scale. Interobserver agreement and intersequence agreement between conventional and synthetic images for cartilage lesions, tears of the cruciate ligament, and tears of the meniscus were independently assessed using Kappa statistics. In patients who underwent arthroscopy (n = 8), the sensitivity, specificity, and accuracy for evaluated internal structures were calculated using arthroscopic findings as the gold standard.ResultsThere was no statistically significant difference in image quality (p = 0.90). Interobserver agreement (κ = 0.649– 0.981) and intersequence agreement (κ = 0.794–0.938) were nearly perfect for all evaluated structures. The sensitivity, specificity, and accuracy for detecting cartilage lesions (sensitivity, 63.6% vs. 54.6–63.6%; specificity, 91.9% vs. 91.9%; accuracy, 83.3–85.4% vs. 83.3–85.4%) and tears of the cruciate ligament (sensitivity, specificity, accuracy, 100% vs. 100%) and meniscus (sensitivity, 50.0–62.5% vs. 62.5%; specificity, 100% vs. 87.5–100%; accuracy, 83.3–85.4% vs. 83.3–85.4%) were similar between the two MRI methods.ConclusionConventional and synthetic MRI showed substantial to almost perfect degree of agreement for the assessment of internal derangement of knee joints. Synthetic MRI may be feasible in the diagnosis of internal derangements of the knee.

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