{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T03:02:09Z","timestamp":1789527729966,"version":"build-2803163510"},"reference-count":55,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2017,9,1]],"date-time":"2017-09-01T00:00:00Z","timestamp":1504224000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pediatric Pulmonology"],"published-print":{"date-parts":[[2017,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Among the different techniques used to monitor lung disease progression in infants with CF diagnosed by Newborn screening (NBS), raised volume\u2010rapid thoracic compression (RVRTC) remains a promising tool. However, the need of sedation and positive pressure ventilation considerably limits its clinical use. We recently described a semi\u2010quantitative method to evaluate air trapping by chest tomography during quite breathing without sedation (CTqb score). This parameter is the radiological sign of airway obstruction and could be also used for lung disease follow\u2010up in infants with CF. However, its discriminative power compared with RVRTC and correlation with lung function parameters are not known.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objectives<\/jats:title><jats:p>To compare the discriminative powers of the CTqb score and RVRTC parameters and to determine their correlation during the first year of life of infants with CF.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>In this multicenter longitudinal study, infants with CF diagnosed by NBS underwent RVRTC and CT during quite breathing at 10\u2009\u00b1\u20094 weeks (<jats:italic>n<\/jats:italic>\u2009=\u200930) and then at 13\u2009\u00b1\u20091 months of age (<jats:italic>n<\/jats:italic>\u2009=\u200928).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>All RVRTC parameters and the CTqb score remained stable between evaluations. The CTqb score showed a higher discriminative power than forced expiratory volume in 0.5\u2009s (FEV<jats:sub>0.5<\/jats:sub>; the main RVRTC parameter) at both visits (66% and 50% of abnormal values vs 30% and 28%, respectively). No correlation was found between CTqb score and<jats:sub>,<\/jats:sub> the different RVRTC parameters or the plethysmographic functional residual capacity, indicating that they evaluate different aspect of CF lung disease.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ppul.23786","type":"journal-article","created":{"date-parts":[[2017,9,1]],"date-time":"2017-09-01T08:16:40Z","timestamp":1504253800000},"page":"1283-1290","source":"Crossref","is-referenced-by-count":4,"title":["Early follow\u2010up of lung disease in infants with cystic fibrosis using the raised volume rapid thoracic compression technique and computed tomography during quiet breathing"],"prefix":"10.1002","volume":"52","author":[{"given":"R\u00e9mi","family":"Gauthier","sequence":"first","affiliation":[{"name":"Pediatric Functional Exploration Unit H\u00f4pital Nord Amiens University Hospital Amiens 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