AI Article Synopsis
- - This study assessed the effectiveness of MAVRIC SL STIR in reducing metallic artifacts during MRI scans of the cervical spine post artificial disk replacement, using both a tissue phantom and five volunteers.
- - Results indicated that MAVRIC SL STIR offered better visualization and minimal distortion compared to other sequences, although it struggled with fat suppression and image quality of the spinal cord.
- - The conclusion suggests that while MAVRIC SL STIR enhances anatomical visualization, it should be used alongside STIR for optimal evaluation of spinal cord changes.
Article Abstract
Objective: This study aimed to evaluate multiacquisition with variable resonance image combination selective short tau inversion recovery (MAVRIC SL STIR) for metallic artifact reduction in magnetic resonance imaging (MRI) of postoperative cervical spine with artificial disk replacement.
Methods: A porcine cervical spine with artificial disk replacement was subject to 3 T MRI with variable fat-suppressed fluid-sensitive sequences. Five volunteers underwent MRI with MAVRIC SL STIR and STIR. Quantitative and qualitative analyses were performed for metallic artifact reduction.
Results: MAVRIC SL STIR showed the least signal void areas in the tissue phantom and volunteer study. In the tissue phantom study, MAVRIC SL STIR showed the best visualization of anatomic structure, least distortion, and signal pile-up. However, it ranked last for the homogeneity of fat suppression among sequences. In the volunteer study, MAVRIC SL STIR showed better visualization of anatomic structure and lesser distortion, but showed worse image quality of the spinal cord than STIR in the sagittal plane (P < 0.05).
Conclusions: MAVRIC SL STIR might be useful for visualization of anatomy by reduction of signal void areas and distortion in the operated site but should be used as a complement to STIR for evaluation of the spinal cord signal change.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8929298 | PMC |
| http://dx.doi.org/10.1097/RCT.0000000000001266 | DOI Listing |
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Article Synopsis
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