Feasibility of three-dimensional constructive interference in steady state sequences for evaluating the anterolateral ligament. Issue 12 (December 2019)

• Record Type: Journal Article
• Authors: Zhu, Y.; Qiu, X.; Yu, T.; Zhang, C.; Zhao, X.; Duan, F.; Hao, D.
• Is Part Of: Clinical radiology. Volume 74:Issue 12(2019)
• Page Start: 978.e9
• Page End: 978.e14
• Publication Date: 2019-12
• Subjects: Medical radiology -- Periodicals; Radiotherapy -- Periodicals; Radiotherapy -- Periodicals; Radiology -- Periodicals; Societies, Medical -- Periodicals; Medical radiology; Radiotherapy; Electronic journals; Periodicals; 616.0757
• DOI: 10.1016/j.crad.2019.08.014
• Languages: English
• ISSNs: 0009-9260

Abstract

Abstract : AIM: The purpose of the study was to determine the feasibility of three-dimensional (3D) constructive interference in steady state (CISS) sequences for evaluating the anterolateral ligament (ALL). MATERIALS AND METHODS: Magnetic resonance imaging (MRI) of the right knee joint in 30 healthy volunteers was performed using a 3 T MRI machine. Axial T2-weighted imaging with fat saturation (T2WI-FS), coronal proton-density-weighted imaging with fat saturation (PDWI-FS), and 3D-CISS were included in the protocol. Multiplanar reconstruction (MPR) and rotating stretched curved planar reconstructions (CPRs) of the ALL at 30°, 60°, 90°, 120°, and 150° were generated from the 3D-CISS images. The visibility of the femoral part, meniscal part, tibial part, meniscal insertion, femoral footprint, and tibial footprint of the ALL on the imaging of all sequences was recorded. RESULTS: Based on the CPR of 3D-CISS MRI, the presence of tibial and femoral footprints of the ALL was rated superior to MPR and PDWI-FS (96.67% and 96.67%, respectively; p< 0.017). Rotating CPR of 3D-CISS MRI imaging was rated superior to PDWI-FS with respect to the tibial part, meniscal part, and meniscal insertion of the ALL (96.67%, 83.33%, and 83.33%, respectively; p< 0.05). Rotating CPR of 3D-CISS MRI was rated superior to PDWI-FS with respect to the femoral part of the ALL, but the difference was not statistically significant ( p =0.095). The angle between the ALL and lateral collateral ligament (LCL) on the oblique sagittal image was 18.34±1.88°. CONCLUSIONS: The MRI 3D-CISS sequences significantly enhanced the ability to identify the ALL compared to the 2D MRI sequences. Highlights: CPR images clearly showed the direction of the ALL fibers. MPR showed the tibial attachment point of the ALL and the common origin of the ALL and LCL. The angle between the ALL and LCL was 18.34° ± 1.88°. CPR images can clearly show the ALL footprints and each portion of the ALL.