Stejskal-Tanner DWI: S(b)/S_0 = e^{-bD}; heat-kernel of Laplacian on R^3

Layer 1 — Physicsin the medical-physics subtree

Stejskal-Tanner pulsed-gradient spin-echo framework (Stejskal-Tanner 1965 J Chem Phys 42, 288). Setup: in diffusion-weighted MRI (DWI), a bipolar gradient pulse of strength G, duration delta, and inter-pulse separation Delta encodes spin…

Related concepts

Heat kernel
Theorem: dS/db + D S = 0 for S(b) = S_0 e^{-b D} (DWI signal-decay ODE)

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