CT of inflation-fixed lungs: Wedge-shaped density and vascular sign in the diagnosis of infarction

Hua Ren, Janet E. Kuhlman, Ralph H. Hruban, Elliot K. Fishman, Paul S. Wheeler, Grover M. Hutchins

Research output: Contribution to journalArticlepeer-review


To evaluate the role of high resolution CT (HRCT) in the diagnosis of pulmonary infarcts, we selected 83 postmortem lung specimens with subpleural densities from a collection of 180 lungs that had been prepared by a method which allows for a direct radiologic-pathologic correlation. Twelve of the lungs had pulmonary infarcts and 71 lungs had other disorders that had produced a subpleural shadow on HRCT. Lungs were evaluated for the presence of wedge-shaped pleural-based densities and for the presence of an associated vascular sign. There was no significant difference in the incidence of wedge- shaped densities on HRCT between lungs with pulmonary infarcts and lungs with pulmonary hemorrhage, pneumonia, tumor, or edema (p > 0.05). A vascular sign associated with a subpleural density was, however, more common (p < 0.01) in lungs with pulmonary infarcts. We suggest that the vascular sign associated with a wedge-shaped density may be of importance in diagnosing pulmonary infarcts by HRCT.

Original languageEnglish (US)
Pages (from-to)82-86
Number of pages5
JournalJournal of computer assisted tomography
Issue number1
StatePublished - Jan 1990


  • Computed tomography
  • Lungs, diseases
  • Lungs, infarction

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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