Diagnostic Value of DWI Sequence in MRI for Reversible Callosal Compression Syndrome
Objective To investigate the diagnostic value of diffusion weighted imaging(DWI)sequence in magnetic resonance imaging(MRI)for reversible splenial lesion syndrome(RESLES).Methods From May 2021 to April 2023,30 patients with RESLES in the hospital were retrospectively enrolled as the RESLES group,and 30 patients with ischemic cerebral infarction in the corpus callosum were enrolled as the control group.Both patients underwent MRI-DWI sequence scanning when they were admitted to the hospital.The MRI features and imaging parameters[apparent diffusion coefficient(ADC)]of the two groups were compared,and ROC was drawn to analyze the relationship between ADC values and RESLES.Results The lesions in the RESLES group were concentrated in the midline of the corpus callosum,and were symmetrically arranged at the midline of the corpus callosum,and most of them were single lesions with relatively regular morphology.MRI scan showed slightly low signal on T1WI,slightly high signal on T2WI and high signal on DWI.Most of the lesions in the control group deviated from the compression side of the corpus callosum,and most of them were multiple lesions with relatively irregular shapes.MRI scans showed high signals on T1WI,T2WI and DWI.The ADC value of RESLES group was lower than that of control group(P<0.05).The ROC curve shows that the AUC of ADC value in diagnosing RESLES is 0.767,which has certain diagnostic value.Conclusion MRI scanning can clearly show the number,shape and distribution of brain lesions in patients with RESLES,which can provide an important basis for the diagnosis of RESLES.At the same time,DWI sequence parameters have certain differential diagnostic value for ischemic cerebral infarction in RESLES and corpus callosum.
Reversible Corpus Callosum Compression SyndromeMagnetic ResonanceDiffusion Weighted Imaging