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Lungs in Infants and Young Children: Improved Thin-Section CT with a Noninvasive Controlled-Ventilation Technique-Initial Experience¹

¹ From the Children's Radiological Institute (F.R.L., M.J.H.) and the Department of Pulmonary Medicine (R.G.C., R.L.F., D.A.F., K.S.M.), Columbus Children's Hospital, 700 Children's Dr, Columbus, OH 43205-2696, and the Department of Radiology, Cincinnati Children's Medical Center, Ohio (A.S.B.). Received April 17, 1998; revision requested May 28; final revision received October 22; accepted January 6, 1999. Supported in part by grant R01HL-54062 from the National Heart, Lung, and Blood Institute. Address reprint requests to F.R.L. (e-mail: flong@chi.osu.edu).

Three sedated young children underwent thin-section computed tomography (CT) of the chest while breathing and during controlled respiratory pauses induced by means of a step increase in positive-pressure ventilation applied via a face mask. Motion-free inspiratory and expiratory thin-section CT images were successfully acquired during 8–12-second respiratory pauses. This simple, reproducible technique produced thin-section CT images that were clearer and more clinically useful than those obtained during quiet tidal breathing.

Index terms: Children, respiratory system • Computed tomography (CT), in infants and children, 60.12118 • Lung, CT, 60.12118 • Lung, function

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