医学
磁共振成像
异常
磁共振弥散成像
放射科
冲程(发动机)
梗塞
回波平面成像
偏瘫
核医学
缺血
心脏病学
心肌梗塞
血管造影
机械工程
精神科
工程类
作者
A. Gregory Sorensen,Ferdinando S. Buonanno,R. Gilberto González,Lee H. Schwamm,Michael H. Lev,Frank Huang‐Hellinger,Timothy G. Reese,Robert M. Weisskoff,Timothy L. Davis,Nijasri C. Suwanwela,Ufuk Can,José Moreira,W.A. Copen,R B Look,Seth P. Finklestein,Bruce R. Rosen,Walter J. Koroshetz
出处
期刊:Radiology
[Radiological Society of North America]
日期:1996-05-01
卷期号:199 (2): 391-401
被引量:717
标识
DOI:10.1148/radiology.199.2.8668784
摘要
To evaluate acute stroke with conventional, multisection diffusion-weighted (DW), and hemodynamically weighted (HW) magnetic resonance (MR) imaging.The three MR imaging techniques were performed in 11 patients within 10 hours of the onset of acute hemiparesis. The volume of DW and HW abnormalities were compared with infarct volumes depicted at initial and/or follow-up MR or computed tomography (CT).Findings at DW and HW imaging were abnormal in nine of the 11 patients, despite normal findings at initial CT and/or MR. In all nine patients, infarcts were depicted at follow-up CT or MR. The DW abnormality was generally smaller and the HW abnormality was generally larger than the infarct volume determined at subsequent imaging. In the two patients with normal findings at DW and HW imaging, symptoms resolved completely within 1-48 hours.Different aspects of hyperacute cerebral ischemia are depicted at DW and HW imaging before infarction is depicted at conventional MR or CT. These techniques may improve stroke diagnosis and may contribute to advances in treatment.
科研通智能强力驱动
Strongly Powered by AbleSci AI