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폐쇄성 뇌혈관 질환과 뇌경색의 영상진단

Other Titles
 Imaging Diagnosis of Occlusive Cerebrovascular Diseases and Cerebral Infarction 
Authors
 이승구 
Citation
 JOURNAL OF THE KOREAN MEDICAL ASSOCIATION , Vol.47(7) : 611-619, 2004 
Journal Title
 JOURNAL OF THE KOREAN MEDICAL ASSOCIATION 
ISSN
 1975-8456 
Issue Date
2004
Keywords
Cerebral infarction ; CT ; MRI ; Angiography
Abstract
Non-contrast CT scan still plays a major role in the diagnosis of ischemic stroke, differentiation from hemorrhagic stroke, and determination of therapeutic plans. However, recently introduced perfusion CT and CT angiography using multi-slice CT are now widely used in the clinical field. They provide information about the local hemodynamic status and the exact location of occlusion in the same way as perfusion MRI and MR angiography. Diffusion-weighted MRI describes the status of molecular diffusion of the brain tissue and detects cytotoxic edema, which enables diagnosis of acute stroke in a more sensitive way than CT or conventional T2-weighted MRI. Perfusion MRI using gadolinium contrast is more sensitive and can detect hyperacute stroke even at the time of occlusion. A proper combination of PWI and DWI can evaluate the brain tissue at risk, e.g. ischemic penumbra, by detection of DWI/PWI mismatching areas and enables the timely diagnosis and treatment of acute stroke. MR angiography also provides an anatomic detail of stenosis or occlusion of cerebral vessels by the non-contrast TOF or contrastenhanced technique. Understanding the principles and pitfalls of new imaging modalities is very important in the evaluation of acute stroke, and proper communication with neuroradiologists is mandatory.
Files in This Item:
T200400625.pdf Download
DOI
10.5124/jkma.2004.47.7.611
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Lee, Seung Koo(이승구) ORCID logo https://orcid.org/0000-0001-5646-4072
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/112371
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