뇌졸증

소개글

뇌졸증에 관한 모든 것을 담았습니다

목차

Cerebral Infarctions
Cerebral Infarction – CT and MRI
Pre-contrast CT
Hyperacute Infarction (< 6 hrs)

본문내용

Cerebral Infarctions
Hyperacute infarction: < 6 hr
Acute infarction:
Subacute infarction
Chronic infarction
Embolic infarction
Thrombotic infarction
Hemorrhagic infarction (transformation)

폐색된 경우
Cerebral perfusion 감소
일정한 혈관분포 영역, 분수계성 영역(watershed zone)에 이상소견
수일, 내지 2-3주간의 시간경과에 따라 이상소견이 변화

Cerebral Infarction – CT and MRI
Loss of gray-white matter distinction
Parenchymal hypodensity
Intravascular enhancement-slow flow, collateral
Gyral swelling, T2 hyperintensity, hemorrhage

Pre-contrast CT
CT Attenuation

Proportional to tissue water content (1%: 2.5 HU)
Tissue water: 3%  within 4 hrs (cytotoxic edema)

Schuir and Hossmann, Cat MCAO study, Stroke 1980;11:593-601
Initial CT detection: within 1 hour after sx onset

von Kummer, Neurology 1997 ;49:S52-S55

참고 자료

없음