Tracheomalacia incidentally detected on CT pulmonary angiography of patients with suspected pulmonary embolism.

Tracheomalacia incidentally detected on CT pulmonary angiography of patients with suspected pulmonary embolism. Research Abstract Details 

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Tracheomalacia incidentally detected on CT pulmonary angiography of patients with suspected pulmonary embolism. Abstract Text:

Ichiro Hasegawa,Phillip M Boiselle,Vassilios Raptopoulos,Hiroto Hatabu,

OBJECTIVE: The aim of this study was to determine the frequency of tracheomalacia incidentally detected on CT pulmonary angiography in patients with suspected pulmonary embolism. MATERIALS AND METHODS: CT records of 163 consecutive patients imaged with CT pulmonary angiography for suspected pulmonary embolism were retrospectively reviewed at our institution. The patients underwent CT pulmonary angiography with three different types of CT scanners. All images were visually assessed by two thoracic radiologists for excessive collapse of the trachea and the main bronchi. The cross-sectional area of the lumen at the site of maximal collapse of the airway was measured, and the percentage of luminal narrowing was calculated by comparing it with the cross-sectional area of the airway lumen at an adjacent area without collapse. We defined tracheomalacia as a 50% or greater decrease in tracheal lumen. RESULTS: Sixteen (10%) of 163 patients showed evidence of tracheomalacia (seven men, nine women; age range, 41-95 years; mean age, 72 years). The most common presenting symptom was shortness of breath, which was observed in 13 (81%) of 16 patients. Known causes of tracheomalacia were found in 15 (94%) of 16 patients, prior intubation was confirmed in 12 patients, and history of asthma or chronic obstructive pulmonary disease was observed in five patients. CONCLUSION: Tracheomalacia is a relatively common incidental finding on CT pulmonary angiography studies. The central airways, as well as pulmonary vasculature, should be reviewed carefully for clinical interpretation in patients with suspected pulmonary embolism. Paired expiratory-inspiratory CT is recommended if patients present with known causes of tracheomalacia such as prior intubation, chronic obstructive pulmonary disease, or asthma.

Tracheomalacia incidentally detected on CT pulmonary angiography of patients with suspected pulmonary embolism. Publishing Authors By Initials

I Hasegawa,PM Boiselle,V Raptopoulos,H Hatabu,

For similar respiratory tract diseases: tracheal diseases research abstracts see: respiratory tract diseases: tracheal diseases research

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Tracheomalacia incidentally detected on CT pulmonary angiography of patients with suspected pulmonary embolism. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: AJR. American journal of roentgenology

VOLUME: 181

Page Numbers: 1505-9

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ISSN: 0361-803X

DAY: 15

MONTH: Dec

YEAR: 2003

Tracheomalacia incidentally detected on CT pulmonary angiography of patients with suspected pulmonary embolism. Information

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LANGUAGE: eng

NlmUniqueID: 7708173

Tracheomalacia incidentally detected on CT pulmonary angiography of patients with suspected pulmonary embolism. Keywords Mesh Terms:

KEYWORDS: Tracheal Diseases

MESH TERMS: radiography

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Grant and Affiliation Information for Tracheomalacia incidentally detected on CT pulmonary angiography of patients with suspected pulmonary embolism.

AFFILIATION: Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA. ihasegaw@caregroup.harvard.edu

Country: United States

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MEDLINETA: AJR Am J Roentgenol

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