Application of Susceptibility Weighted Imaging Detecting Cerebrai Microbleeds in Patients with Lacunar Infarction Disease

Objective To evaluate the value of detecting cerebral microbleeds in patients with lacunar infarction by susceptibility weighted imaging(SWI) and conventional FSE sequences. Materials and Methods The study sample consisted of 50 patients and 50 cases healthy population, were examined using SWI and conventional FSE sequences by GE 3.0 T MR machine with 32 tunnel HR head coil. The number, frequency and locations of CMBs were analyzed by SWI and FSE. The value of SWI and FSE sequences in founding CMBs were compared. The number of CMBs in patients with lacunar infarction and the number of lacunar infarction. were analyzed. Results 24 cases patients with CMBs on SWI were founded in 50 cases patients with lacunar infarction, 5 cases patients on T2 WI were founded in 24 cases patients with CMBs on SWI, only 3 cases patients on T1 WI were founded. On SWI sequences, compared with the controls subjects and patients with CMBs of lacunar infarction had significant increased positive rate and numbers of CMBs(P0.01). There was a correlation between the number of CMBs in patients with lacunar infarction and the number of lacunar infarction. Conclusion SWI sequence was much better than FSE, SWI sequence is more sensitive than FSE in detecting CMBs and should be as the first choice.