METHOD FOR NOISE SUPPRESSION AND DIRECTIONAL CONTRAST ENHANCEMENT OF NUCLEAR MAGNETIC RESONANCE TOMOGRAPHIC DIFFUSION DATA, IMAGING METHOD, COMPUTER PROGRAM PRODUCT, AND IMAGING DEVICE

摘要

The invention relates to a method for noise suppression and directional contrast enhancement of nuclear magnetic resonance tomographic diffusion data, wherein location- and direction-dependent diffusion measurement data with discrete measured values D_{i, j}, or a location- and direction-dependent diffusion distribution function (4, 6, 7, 7', 11; 24, 15) formed therefrom with discrete function values F_{i, j}for M discrete space elements V (2,2", 2", 2'") of a three-dimensional space, and N discrete three-dimensional diffusion direction vectors r_j (8, 9, 10) exist. In order to calculate a location- and direction-dependent discrete diffusion contrast function K_{i, j} for a combination of the space element V_i (2) and diffusion direction vector r_j (8), weighted averaging is carried out, wherein apart from measured values D_{i, j} and D_{i, j'}, or function values F_{i, j} and F_{i, j'} for the space element V_i with diffusion direction vectors r_{j(8) and rj' (9, 10), measured values Di', j', or function values Fi', j',of space elements Vi' (2', 2") are taken into consideration, wherein the space element Vi' (2', 2") overlaps a subspace (5) at least partially, which extends along the diffusion direction vector rj (8), originating from the space element Vi (2).}