Imaging con tensore di diffusione: differenze tra le versioni
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[[Categoria:Imaging biomedico]]
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==Bloch–Torrey equation==
In 1956, H.C. Torrey mathematically showed how the [[Bloch equations]] for magnetization would change with the addition of diffusion.<ref>{{cite journal |doi=10.1103/PhysRev.104.563 |bibcode=1956PhRv..104..563T |title=Bloch Equations with Diffusion Terms |year=1956 |last1=Torrey |first1=H. C. |journal=Physical Review |volume=104 |pages=563}}</ref> Torrey modified Bloch's original description of transverse magnetization to include diffusion terms and the application of a spatially varying gradient. The Bloch-Torrey equation neglecting relaxation is:
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This demonstrates a cubic dependence of transverse magnetization on time. Anisotropic diffusion will have a similar solution method, but with a more complex diffusion tensor.
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==Voci correlate==
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