Motion-robust MR imaging of the shoulder using compressed SENSE MultiVane

Area of Science:

• Medical imaging
• Radiology
• Magnetic Resonance Imaging

Background:

• Motion artifacts are a significant challenge in shoulder MRI, degrading image quality and obscuring diagnostic information.
• The MultiVane (MV) technique mitigates motion artifacts but increases scan time.
• SENSitivity Encoding (SENSE) combined with compressed sensing (C-SENSE) accelerates MRI acquisition.

Purpose of the Study:

• To evaluate the efficacy of the combined C-SENSE and MV technique (C-SENSE MV) for shoulder MRI.
• To assess the impact of C-SENSE MV on motion artifact reduction and anatomical structure detectability.

Main Methods:

• A prospective study included 31 patients undergoing shoulder MRI.
• Two imaging sets were acquired: standard and C-SENSE MV (PDWI, T2WI with fat suppression).
• Radiologists assessed motion artifacts and anatomical structure detectability using a 4-point scale; data analyzed with the Wilcoxon signed-rank test.

Main Results:

• C-SENSE MV significantly reduced motion artifacts compared to standard sequences (p < 0.001).
• Detectability of anatomical shoulder structures was significantly improved with C-SENSE MV (p < 0.001).

Conclusions:

• The C-SENSE MV technique is effective in reducing motion artifacts during shoulder MRI.
• This novel technique enhances the visualization of anatomical structures, improving diagnostic capabilities for shoulder joint pathologies.