AJR Women's Imaging Online
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Shah, R. M.
Right arrow Articles by Friedman, A. C.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Shah, R. M.
Right arrow Articles by Friedman, A. C.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?

American Journal of Roentgenology, Vol 170, 719-721, Copyright © 1998 by American Roentgen Ray Society

ARTICLES

CT angiogram sign: incidence and significance in lobar consolidations evaluated by contrast-enhanced CT

RM Shah and AC Friedman
Department of Radiologic Sciences, Medical College of Pennsylvania, Philadelphia 19129, USA.

OBJECTIVE: The CT angiogram sign--that is, the ability to see normal pulmonary vasculature within parenchymal consolidations--was initially reported as specific for the diagnosis of bronchioloalveolar cell carcinoma. Our purpose was to establish the frequency of this sign in lobar consolidations of varied causes as revealed by contrast-enhanced CT. We also sought to determine if the presence of this sign contributed to the specificity of radiographic diagnosis. MATERIALS AND METHODS: All consecutive contrast-enhanced thoracic CT examinations performed for evaluation of lobar consolidations between May 1994 and April 1997 were reviewed. The CT angiogram sign was considered present when segments of pulmonary vessels could be identified within alveolar consolidations. Medical records were reviewed to establish the causes of the consolidations. RESULTS: Fifty-one patients (24 women, mean age = 59 years; 27 men, mean age = 46 years) had lobar or multilobar consolidations due to pneumonia without central obstruction (n = 20), pneumonia or pneumonitis with central obstruction (n = 19), passive atelectasis (n = 7), and (one case each) mucus plugging, lipoid pneumonia, pulmonary lymphoma, bronchioloalveolar cell carcinoma, and pulmonary hemorrhage. The CT angiogram sign was present in 15 (29%) of 51 consolidations, including seven (37%) of 19 postobstructive consolidations, four (20%) of 20 cases of pneumonia without central obstruction, one (14%) of seven cases of passive atelectasis, and each single case of lymphoma, bronchioloalveolar cell carcinoma, and lipoid pneumonia. CONCLUSION: The CT angiogram sign is a common finding in lobar consolidations evaluated by contrast-enhanced CT. However, the sign does not add specificity to the radiographic diagnosis.
Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?


This article has been cited by other articles:


Home page
 Br. J. Radiol.Home page
D Patsios, H C Roberts, N S Paul, T Chung, S J Herman, A Pereira, and G Weisbrod
Pictorial review of the many faces of bronchioloalveolar cell carcinoma
Br. J. Radiol., December 1, 2007; 80(960): 1015 - 1023.
[Abstract] [Full Text] [PDF]

Home page
 RadiologyHome page
M. Remy-Jardin and J. Remy
Spiral CT Angiography of the Pulmonary Circulation
Radiology, September 1, 1999; 212(3): 615 - 636.
[Abstract] [Full Text]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1998 by the American Roentgen Ray Society.