Magnetic resonance imaging. Analysis of T2 weighted image of lumbar disc herniation.

概要

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MR images of 43 cases with lumbar disc herniation were evaluated. MRI was carried out by Siemens' Magnetom (1.5T). T2 weighted image demonstrated alteration of signal intensity in the discs best clearly. T1 value, T2 value and ρ density were calculated on each disc grouped it in three parts: anterior, middle and posterior one third. In the discs with normal signal intensity, T1 value was longest in the middle, and T2 value also was longest in the middle. However, ρ density was longest in the posterior. In herniated discs, the anterior showed the shortest T2 value and a similarity of long T2 value was found in from the middle to the posterior contained herniated disc mass. These findings were significant in diagnosis of lumbar disc herniation on MRI.
西日本整形・災害外科学会の論文