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Background: In adults, noninvasive ventilation via a helmet is associated with significantly greater noise than nasal and facial masks. We hypothesized that noise exposure could be increased with neonatal helmet continuous positive airway pressure (CPAP) in comparison with conventional nasal CPAP (nCPAP). Our primary objective was to compare the noise intensity produced by a neonatal helmet CPAP...
Purpose The aim of this study was to develop a quality control programme for ultrasound equipment and assess equipment performance at a single hospital. Materials and methods We tested 116 transducers by means of a phantom; ultrasound quality control tests were done on parameters from B-mode images, and each parameter was rated according to a three-point score as good, sufficient or poor. Results...
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