摘要
MRI的常规序列T1加权成像、T2加权成像和液体衰减反转恢复(FLAIR)序列均可敏感地检出亚急性期和慢性期颅内出血;梯度回波成像可检出各期颅内出血,但血肿信号强度与血肿存在的时间无相关性。弥散加权成像和表观弥散系数能提供更多有关血肿中心区、周围区和梗死后出血的信息。
Traditional sequences of magnetic resonance imaging （MRI） such as T1 -weighed imaging, T2-weighed imaging, and fluid-attenuated inversion recovery （FLAIR） imaging can sensitively detect the subacute and chronic intracranial hemorrhage; gradient echo sequence can detect various stages of intracranial hemorrhage, but there is no correlation between the signal intensity of the hematoma and the time of the presence of hematoma. Diffusion-weighted imaging and parent diffusion coefficient may provide more information about the center and surrounding areas of hematoma, as well as the hemorrhagic tendency after infarction.
出处
《国际脑血管病杂志》
2006年第2期137-140,共4页
International Journal of Cerebrovascular Diseases
关键词
颅内出血
磁共振成像
梯度回波成像
弥散加权成像
intracranial hemorrhage
magnetic resonance imaging
gradient echo imaging
diffusion-weighted imaging
