Objective to explore the value of single photon emission computed tomography (SPECT) cerebral blood flow in detecting the cognitive ability of patients with transient ischemic attack (TIA).

Objective To discuss the differential diagnosis of ischemic cerebral infarction(ICI)versus hemorrhagic cerebral infarction(HCI)with computed tomography(CT).

Objective To investigate the diagnostic value of computed tomography perfusion imaging (CTP) in acute cerebral ischemic stroke and to assess the relationship between CTP and clinical data.