| 摘要 |
PROBLEM TO BE SOLVED: To provide an improved elastography technique using a magnetic resonance apparatus, exerting high accuracy when determining a quantity describing elasticity of tissue, and a technique enabling a further simple and low-cost elastography.SOLUTION: In methods for elastography in a defined region of an examined person 211, using a magnetic resonance apparatus, a radio-frequency pulse is radiated to manipulate a transverse magnetization in the defined region 30 and at least one additional radio-frequency pulse with a spatial selectivity of the amplitude is radiated to generate shear waves in the defined region 30. A magnetic resonance signal of the traverse magnetization for visualizing the shear waves is detected from the defined region 30 and a determination of a quantity describing the tissue elasticity in the defined region 30 is made based on the magnetic resonance signal. |
