Abstract
MR spectroscopic imaging plays a more and more important role in clinical application. In this paper, we make comparison on two MRSI technologies and data reconstruction methods. For the conventional phase-encoded spectroscopic imaging, the data reconstruction using FFT is simple, but the data acquisition is very time consuming and thus prohibitive in clinical settings. Sensitivity-encoded SI is a new parallel approach of reducing the acquisition time by reducing the necessary spatial encoding steps with multiple coils. It uses the distinct spatial sensitivities of the individual coil elements to recover the missing encoding information in reconstruction. Fourfold reduction in scan time can be achieved when the factor of R x and R y are both 2, with no compromise in spectra and spatial resolution. These improvements in data acquisition and image reconstruction provide a potential value of metabolic imaging using SENSE-SI as a clinical tool.
Grant sponsor: National Natural Science Foundation of China, Grant number: 30070226. University Foundation of HUST, Grant number: 0101170054.
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Huang, M., Lu, S., Lin, J., Zhan, Y. (2004). Comparison of Phase-Encoded and Sensitivity-Encoded Spectroscopic Imaging. In: Yang, GZ., Jiang, TZ. (eds) Medical Imaging and Augmented Reality. MIAR 2004. Lecture Notes in Computer Science, vol 3150. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-28626-4_9
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DOI: https://doi.org/10.1007/978-3-540-28626-4_9
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