The imaging analysis of magnetic resonance myelography in disease of the lumbosacral nerve roots

<正> AIM: To illustrate the magnetic resonance(MR) myelography features in the disease of lumbosacral nerve roots. METHODS: MR myelography using heavily T2 weighted spin-echo imaging with fat suppression was performed in 75 cases with chronic pain of waist on a Siemens Magneton Impect 1.0 T MR unit Maximum intensity projection (MIP) was used for image reconstruction. RESULTS: The thecal maugins, nerve roots and nerve root sheaths were well demonstrated on MR myelography image. In 75 patients with chronic of waist, nerve root disease was found in 11 cases. 6 nerve root abnormality (8% ), 2 perineural cyst (3% ), 3 neurofibroma (4% ) had their own MR myelography features. CONCLUSION: MR myelography can show the morphologic and structural change of lumbosacral nerve roots. In MR myelography image, disease of lumbosacral nerve roots has a characteristic finding. MR myelography is very useful in diagnosis of nerve-root disease.