Correlative study on MRI manifestations between cerebral infarction and subcortical ischemic vascular dementia

RUAN Shouyu; ZHU Xianghui; LI Qunwu; OU Bo; RUAN Xinzhu

Abstract：Objective To further study the relationship of magnetic resonance imaging (MRI) manifestations between subcortical multiple cerebral infarction and subcortical ischemic vascular dementia(SIVD).Methods MRI manifestations of 98 patients with SIVD and 68 patients with cerebral infarction without dementia as controls were comparatively analyzed in this work.Results In comparison of the patients in SIVD group to those in control group,the results were as follows:1) The incidence in the thalamus,subcortical white matter of frontal temporal lobe,anterior white matter of lateral ventricle body,the forepart of centrum semiovale,the basal ganglia,caudate nucleus,lentiform nucleus,or internal capsule was significantly higher in SIVD group than that in control group (P ＜ 0.05);2) the average number of focal cerebral infarction in the thalamus,subcortical white matter of frontal temporal lobe,anterior white matter of lateral ventricle body,the forepart of centrum semiovale,the basal ganglia,caudate nucleus,lentiform nucleus,preramus of internal capsule,or capsula externa was significantly higher in SIVD group than that in control group (P ＜ 0.05);3) the average volume of cerebral infarcts in the thalamus,subcortical white matter of frontal temporal lobe,anterior white matter of lateral ventricle body,or the forepart of centrum semiovale was significantly higher in SIVD group than that in control group (P ＜ 0.05).Conclusion The incidence of SIVD is closely related to location,number,and size of the cerebral infarction as shown by MRI examination.