To the Editor: Computed tomography (CT) of the chest is superior to chest x-ray as an imaging modality of the lungs, mediastinum, pleura and the chest wall,1 and its use is increasing for a range of diagnostic and therapeutic applications.2 There are clear indications for the appropriate use of chest CT, and adherence to these can reduce cost, workload, procedure-related complications and radiation exposure. Our group recently analysed referrals for chest CT from general practice, and found that the scan was clinically helpful in only 12%, and inappropriate in 68%.3 We thus examined the indications for ordering CT of the chest, and the associated outcomes in hospital inpatients, who had been referred for chest CT by general physicians.
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We thank the staff of Cairns Base Hospital Radiology Department and Rabia Khan, Tropical Public Health Unit Network, Queensland Health, for her guidance with the statistical analysis.