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[CT findings of watershed infarction; comparison of 123I-IMP SPECT and IV-DSA].

Authors
  • Urakami, S
  • Cho, N
  • Sakamoto, N
  • Yaguchi, K
  • Sumie, H
  • Kuru, Y
Type
Published Article
Journal
Rinsho hoshasen. Clinical radiography
Publication Date
Oct 01, 1990
Volume
35
Issue
11
Pages
1369–1373
Identifiers
PMID: 2277418
Source
Medline
License
Unknown

Abstract

A watershed infarction is a specific type of a cerebral infarction. This occurs at the border zone between major cerebral arteries. Its CT findings are characteristic as a wedge shaped low density appearing either in the superior frontal region (watershed between anterior and middle and posterior cerebral artery), and always involving the deep white matter onto the ventricle wall. Even though the CT feature is small, a patient, without exception, suffers from neurologic deficit. We studied four cases of a watershed infarction on X-ray CT and compared with 123I-IMP SPECT. DSA was also made to demonstrate an obstruction of an artery which was usually found at the more proximal segment then what we expected from the CT feature. The findings on the 123I-IMP SPECT were better predictable of neurologic symptoms and they were larger in extent than the CT findings.

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