What to do with All that Signal? Issues of High-resolution MRI
The basic description of field strength–related changes, i.e., in magnetization and relaxation times, as well as challenges, such as B 1 or B 0 inhomogeneity and SAR, has been given in Contrasts, Mechanisms, and Sequences, together with some of the consequences and remedies for major MR imaging methods. In this chapter, a few general aspects and possible exploitations of the increased SNR at high field are described. In addition, limitations of improvements at high field strength and currently remaining challenges are discussed and set the stage for the following chapters on particular applications of high-field MR.
KeywordsFlip Angle High Field Strength Lower Field Strength Diffusion Tensor Imaging Measurement High Magnetic Field Strength
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