Diagnosis value of susceptibility weighted imaging in cerebral microbleeds

Objective To investigate the diagnosis value of susceptibility weighted imaging(SWI)in cerebral microbleeds(CMBs).Methods Thirty cases of cerebrovascular disease patients with CMBs detected by SWI sequence were adopted as the subjects.Multi-sequence comparative study by routine MRI,T2*WI and SWI was used to discuss the imaging features,distribution and sensitivity of CMBs.Results The SWI sequences detected 67CMBs in 30cases,the sensitivity was 100%.CMBs in SWI sequence showed 2-5mm round or oval clear and sharp boundary low signal loss,and the sequence of T2*WI found 51CMBs in 18cases,showing low signal loss,CMBs detection sensitivity of the T2*WI sequence was 76.1%;CMBs detections of the usual MRI such as T1WI,T2WI sequence were 10in 4cases(14.9%).SWI sequence,compared with T2*WI sequence and routine MRI sequence,showed significant difference(P 0.05).Conclusion The SWI sequence of CMBs detection sensitivity is higher than that of conventional sequence and T2*WI sequence.CMBs lesion detection can reflect brain microvascular lesions for great clinical application value.The SWI sequence has an important role to ischemic stroke treatment and prognosis.