Tracheal collapsibility in healthy volunteers during forced expiration: assessment with multidetector CT.

ABSTRACT:

Purpose

To assess forced expiratory tracheal collapsibility in healthy volunteers by using multidetector computed tomography and to compare the results with the current diagnostic criterion for tracheomalacia.

Materials and methods

An institutional review board approved this HIPAA-compliant study. After informed consent was obtained, 51 healthy volunteers (age range, 25-75 years) with normal spirometry results and no history of smoking or risk factors for tracheomalacia were prospectively studied. Volunteers were imaged with a 64-detector row scanner, with spirometric monitoring at total lung capacity and during forced exhalation, with 40 mAs, 120 kVp, and 0.625-mm detector collimation. Cross-sectional area and sagittal and coronal diameters of the trachea were measured 1 cm

SUBMITTER: Boiselle PM 

PROVIDER: S-EPMC2797678 | biostudies-literature | 2009 Jul

REPOSITORIES: biostudies-literature