Three-section expiratory CT: Insufficient for trapped air assessment in patients with cystic fibrosis?
- Loeve, M. (Martine)
- Bruijne, M. (Marleen) de
- Hartmann, I.J.C. (Ieneke)
- Straten, M. (Marcel) van
- Hop, W.C.J. (Wim)
- Tiddens, H.A.W.M. (Harm)
Publication date
March 2012
DOI Publisher
Radiological Society of North America (RSNA) ISSN
0033-8419 Citation count (estimate)
8Abstract
Purpose: To estimate the effect of the number of computed tomography (CT) sections on trapped air (TA) assessment in patients with cystic fibrosis (CF) by using an established scoring system and a new quantitative scoring system and to compare CT and pulmonary function test (PFT) estimates of TA in a cross-sectional and longitudinal study. Materials and Methods: In this institutional review board-approved pilot study, 20 subjects aged 6-20 years (12 female and eight male; median age, 12.6 years) contributed two expiratory CT studies (three-section baseline CT, volumetric follow-up CT) and two PFT studies over 2 years after parental informed consent was obtained. From follow-up CT studies, seven sets were composed: Se
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