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Выявление патологических изменений в оболочках мозга методом одновременного подавления сигналов от воды и жира при МРТ

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Detection of Pathological Changes in Meninges by Simultaneous Water and Fat Signals Suppression in MRI

The problem of MRI investigation of meninges is studying. It is difficult enough because normal tissues, adjoining the zone of meninges, maintain fat and free water and give surplus bright signal at usual MRI images. Therefore it is difficult to reveal small variations of tissue contrast for adjoining meninges. Usual pulse sequences, including methods of only water signal suppression (FLAIR) or only fat signal suppression (STIR), are not effective enough. Therefore we suggest using the pulse sequence DIR for the best visualization of changed meninges when inversion-recovery effect is applied twice due to simultaneous water and fat signal suppression is provided. Suppression of a powerful signal from a normal tissue promotes adaptation of a receiver to a signal from pathologically changed tissue, thereby tissue contrast is simplified significantly, and as a result, favorable conditions are created for their reliable visualization.

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