Utility of radial reformation of three-dimensional fat-suppressed multi-echo gradient-recalled-echo images for the evaluation of acetabular labral injuries and femoroacetabular impingement

Sueoka, Takahiro; Tanitame, Keizo; Honda, Yukiko; Shoji, Takeshi; Yamasaki, Takuma; Adachi, Nobuo; Awai, Kazuo

doi:10.1007/s00256-018-3026-1

Cited by 3 publications

(6 citation statements)

References 38 publications

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“…However, they included both tears status and degeneration of the acetabular labrum in their labrum assessment. 18,39 Despite ongoing advancements, the radiographic classification system for labrum assessment is still evolving, and a standardized radiographic classification system for reporting results has yet to be established. It is anticipated that the future radial plane studies, boasting high sensitivity, and accuracy, will fill this gap.…”

Section: Classificationmentioning

confidence: 99%

“…3D GRE‐based techniques for radial reconstruction of non‐enhanced hip MRI, including 3D DESS and 3D multiple‐echo sequences, use small excitation pulses and short repetition time. This allows for high‐quality multi‐planar reconstruction after a single acquisition in reasonable scan durations 18,35,39 . The DESS sequence, exclusive to Siemens Healthcare, is a combination of a fast imaging with steady precession (FISP) and a reversed FISP (PSIF, PSIF is just a reversal of the letters in FISP) sequence, obtained during the same acquisition 40 .…”

Section: Mri Techniquesmentioning

confidence: 99%

“…Several studies have refrained from using classification system for hip labral lesions on non‐arthrography 3D MRI with radial reconstruction. However, they included both tears status and degeneration of the acetabular labrum in their labrum assessment 18,39 …”

Section: Acetabular Labrummentioning

confidence: 99%

“…This allows for high-quality multi-planar reconstruction after a single acquisition in reasonable scan durations. 18,35,39 The DESS sequence, exclusive to Siemens Healthcare, is a combination of a fast imaging with steady precession (FISP) and a reversed FISP (PSIF, PSIF is just a reversal of the letters in FISP) sequence, obtained during the same acquisition. 40 The superposition enhances the T2*-weighting of the image, increases the signal intensity of cartilage and synovial fluid, and creates an arthrogram-like effect within the joint.…”

Section: Radial Planes In 3d Mri and Mramentioning

confidence: 99%

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Radial Planes in Hip Magnetic Resonance Imaging: Techniques, Applications, and Perspectives

Chen,

Chen

2023

Magnetic Resonance Imaging

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The hip cartilage and labrum, as the main targets of femoroacetabular impingement, sports‐related or traumatic damage, as well as congenital and developmental abnormalities, have attracted increasing attention with the development of magnetic resonance imaging (MRI) and hip arthroscopy. MRI is a commonly used imaging modality to noninvasively visualize the hip cartilage and labral lesions. However, conventional orthogonal MRI planes encounter unique challenges given the ball‐and‐socket configuration of the hip joint, its anatomically abducted and anteverted orientation, and the thin, closely apposed cartilage enveloping the femoral head and acetabulum. Advancements in hip MRI's radial plane, which is acquired through the center of the hip joint, offer a solution. This technology provides true cross‐sectional images of the cartilage and labrum perpendicular to the curvature of the joint, thereby mitigating the partial‐volume‐averaging effects. The integration of 3.0‐Tesla high field strength and three‐dimensional (3D) acquisition techniques further enhances the capabilities of the radial plane. This combination yields a high signal‐to‐noise ratio, high spatial resolution, high contrast between intraarticular structures, while minimizing partial‐volume‐averaging effects. Such improvements potentially facilitate the comprehensive detection of even minor chondral and labral lesions. The capability for multiplanar reconstruction from a single 3D volumetric acquisition further strengthens the usefulness of the radial plane by aiding in precise localization of hip cartilage and labral lesions, in line with hip arthroscopy findings. These advancements have the potential to standardize MRI evaluations and radiographic reporting systems for hip cartilage and labrum, offering precise guidance for hip arthroscopy. This article presents a comprehensive review of radial plane technology applied to the hip MRI, and discusses the morphological assessment and localization of hip cartilage and labral lesions utilizing this advanced imaging technique.Evidence Level5Technical EfficacyStage 2

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Section: Classificationmentioning

confidence: 99%

Section: Mri Techniquesmentioning

confidence: 99%

Section: Acetabular Labrummentioning

confidence: 99%

Section: Radial Planes In 3d Mri and Mramentioning

confidence: 99%

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Radial Planes in Hip Magnetic Resonance Imaging: Techniques, Applications, and Perspectives

Chen,

Chen

2023

Magnetic Resonance Imaging

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“…Fitting all these considerations together, we have determined to use 3D DESS sequence with radial imaging at 3.0 Tesla to evaluate the labrum, the validity of which has been testified 34 . The visualization of the labrum and the cartilage is further improved due to the radial imaging approach 35,36 . Based on the previous studies supporting the possibility of fibrocartilage repair and the high accuracy of DESS technique for detecting labral lesion, we believe that the intermedia signal intensity demonstrated by 3D DESS MRI is convincingly the results of fibrocartilage-like tissue through marrow stimulation at the labral defect area.…”

Section: Tissue Regrowth Of Microfracture At the Acetabular Rimmentioning

confidence: 99%

Microfracture of Acetabular Rim After Segmental Labral Resection to Restore the Morphology and Function of Labrum: A Retrospective Study of More than 2 Years Follow‐up

Yang

et al. 2021

Orthopaedic Surgery

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Objective: To report on the clinical outcome of patients undergoing combined arthroscopic treatment of labral resection and microfracture at the rim of acetabulum at a minimum 2-year follow-up. Methods:The retrospective study included 38 patients undergoing hip arthroscopy for irreparable labral injury from 24 February 2014 to 26 February 2018. Thirteen patients were excluded owing to patient refusal of participation and concomitant diseases like synovial chondromatosis and dysplasia hip. The study group consisted of patients undergoing combined arthroscopic labral resection and microfracture at the rim of acetabulum (MICRO Group: 20 patients), arthroscopic labral resection alone (RESEC Group: five patients). Postoperative three-dimensional (3D) double-echo steady-state (DESS) sequence with radial imaging at 3 Tesla were obtained and fluoroscopic image of the involved hip under distraction were used to observe the restoration of vacuum effect. Patient-reported outcome scores (PROs) including the Harris Hip Score (HHS), Visual Analogue Score (VAS), Hip Outcome Score Activities of Daily Living Subscale (HOS-ADL), Hip Outcome Score Sport-Specific Subscale (HOS-SSS) were collected and compared between two groups.Results: All patients were followed up for at least 6 months. The follow-up time of RESEC group is longer than MICRO group (46.6 months vs 23.9 months, P < 0.05). The 3D DESS imaging demonstrated intermediate signal intensity at the relative area where the labrum resected followed by microfracture at the acetabular rim in MICRO group. Meanwhile, regrowth of labrum-like tissue was not observed in MRI imaging of the RESEC group. Furthermore, vacuum effect was more apparent in MICRO group compared with RESEC group. All PROs in both groups showed a statistically significant improvement at follow-up compared with preoperative levels.

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Acetabular Labral Repair and Selective Labral Debridement Show No Significant Difference in Clinical Outcomes at a Minimum 2-Year Follow-Up

Huang

Yang

et al. 2024

Arthroscopy: The Journal of Arthroscopic & Related Surgery

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Utility of radial reformation of three-dimensional fat-suppressed multi-echo gradient-recalled-echo images for the evaluation of acetabular labral injuries and femoroacetabular impingement

Abstract: Type 1 and type 2 radial reformations of 3D FS me-GRE imaging were useful for evaluating acetabular labral injuries and determining whether patients with acetabular labral injuries have FAI, respectively.

Cited by 3 publications

References 38 publications

Radial Planes in Hip Magnetic Resonance Imaging: Techniques, Applications, and Perspectives

Radial Planes in Hip Magnetic Resonance Imaging: Techniques, Applications, and Perspectives

Microfracture of Acetabular Rim After Segmental Labral Resection to Restore the Morphology and Function of Labrum: A Retrospective Study of More than 2 Years Follow‐up

Acetabular Labral Repair and Selective Labral Debridement Show No Significant Difference in Clinical Outcomes at a Minimum 2-Year Follow-Up

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