Maximizing 3T imaging of the MRI of the knee
Journal Title: International Journal of Medical and Health Research - Year 2018, Vol 4, Issue 8
Abstract
MRI is considered the highest imaging and diagnostic tool for the knee as a results of its ability to guage a large vary of anatomy and pathology varied from ligamentous injuries to articulary gristle lesions. Advantages of using 3.0 T: 3.0 T imaging is of interest to the system thanks to the inflated man signal and better SNR. SNR and Relaxation Time Considerations: While it seems that 3.0 T imaging ought to give double the intrinsic SNR of imaging at 1.5 T, changes in each T1 associate degreed T2 relaxation times together with the dearth of optimized coils ends up in an SNR improvement of slightly but double. Technical Considerations: Technical concerns should be accounted for so as to optimize 3.0 T imaging. Protocols: Protocols are developed at 3.0 T tomography that show promising results for assessment of the knee. Future Directions: (1) Isotropic Imaging: Isotropic or 3 dimensional (3D) imaging techniques leave the acquisition of identical voxels as opposition the usually non-heritable eolotropic voxels with 2 dimensional (2D) imaging. (2) UTE imaging: Human tissues contain many elements that have a large vary of T2 values. (3) T2 Mapping: T2 relaxation times for a precise tissue square measure usually constant, tissue pathology may end up in changes in these relaxation times. (4) T1rho Imaging: T1rho imaging, or spin lattice relaxation within the rotating frame, is feasible once the magnetization is “spin-locked” by a continuing RF field once being tipped into the crosswise plane. (5) Sodium: Sodium imaging, like T1rho imaging, has shown promise in mensuration proteoglycan content as a marker of early, symptomless OA. Conclusion: The long run of 3.0 T imaging is bright as analysis increases to push the boundaries of this already outstanding imaging modality.
Authors and Affiliations
Heba Alrebh, Amjad Alharthy, Emad Ali, Ameer Mesawa, Ali Alamri, Obai Mesawa
Keywords
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