关键词: 谱学; 近红外线; 局部血流; 缺血性卒中

Abstract: In recent years, the incidence of cerebral ischemia is increasing. It is of greatimportance to make an early diagnosis and timely treatment to reduce the morbility and mortality.Generally, the cerebral ischemia can be cured if the disease could be diagnosed within half anhour. Therefore many scholars thought that forecast and prevention were more important thantreatment. Near infrared spectroscopy(NIRS) can be used for non-invasive assessment of thebrain function through an skull in human subjects by detecting changes in blood hemoglobinconcentrations associated with neural activity and monitoring oxygen saturation degree and bloodstream dynamics of partial cerebrum in real time. NIRS have many excellent characteristics such astime and space resolution, portable and bedside monitoring. NRIS has become a useful method forclinical brain physiology examination. It has been widely used for diagnosis, treatment, monitoring,and rehabilitation by monitoring the values of Hb, OxyHb and cerebral blood flow despite certainlimitations. NIRS is safe, non-invasively and easy to operation. NIRS will be widely used in clinicalpractice.

Key words: Spectroscopy; near-infared; Regional blood flow; Brain infarction