Differentiation of proximal bronchogenic carcinoma from postobstructive lobar collapse by magnetic resonance imaging comparison with computed tomography

Jerry Tobler, Robert G. Levitt, Harvey S. Glazer, Jon Moran, Edward Crouch, Ronald G. Evens

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

MRI and CT studies in 18 patients with proximal bronchogenic carcinoma and postobstructive lobar collapse were analyzed retrospectively. The relative abilities of these imaging techniques to identify central tumor by a contour abnormality and to distinguish tumor mass from collapsed lung by CT attenuation values and MRI signal intensities were compared. MRI and CT were equivalent in their ability to identify a contour abnormality, both succeeding in 13 of 18 (72%) patients. CT was more successful than MRI in differentiating tumor mass from collapsed lung. Dynamic computed tomography scanning differentiated tumor from collapsed lung in eight of ten (80%) patients. MRI demonstrated different signal intensities of tumor and collapsed lung in 8 of 18 (44%) patients. T2-weighted images more often separated tumor from collapsed lung than other imaging sequences.

Original languageEnglish
Pages (from-to)538-543
Number of pages6
JournalInvestigative Radiology
Volume22
Issue number7
DOIs
StatePublished - Jul 1987

Keywords

  • Bronchogenic carcinoma
  • CT
  • Computed tomography
  • Lobar collapse
  • MRI
  • Magnetic resonance imaging

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