The study will enroll 44 patients and randomly divided into 2 groups: standard dose rosuvastatin therapy (SRT 10mg/day)and intensive dose rosuvastatin therapy (IRT 20mg/day)in a 1:1 ratio. Both groups will be prescribed with statin based on other routine medication for stroke for 52 weeks. CTP will be performed at baseline and 52 weeks after treatment. Lipid levels and biochemical examinations will be obtained at baseline and 13, 26, 39, 52 week. AEs(Adverse Events)/SAEs(Serious Adverse Events) will be collected and recorded in CRF(Case Report Form) from the signing of informed consent throughout the study until and including the last visit.