ObjectiveTo explore the clinical application value of digital radiography (DR) combined with dual-energy subtraction (DES) in the diagnosis of pneumoconiosis.
MethodsA total of 102 patients with pneumoconiosis were selected and underwent both DR combined with DES and film-screen radiography (FSR) to take the whole chest radiography.The image quality and diagnostic information of the two techniques were compared.
ResultsThe rate of excellent film, fine film, poor film and waste film of DR combined with DES was 96.08%, 3.92%, 0.00% and 0.00%, respectively; which of FSR was 72.55%, 16.67%, 7.84% and 2.94%, respectively; the rate of excellent film of DR combined with DES was significantly higher than that of FSR (P < 0.01).Eighty-one cases of pneumoconiosis above stage one were detected by DR combined with DES, the detection rate of which was 79.41%;sixty-one cases of pneumoconiosis above stage one were detected by FSR, the detection rate of which was 59.80%;the detection rate of DR combined with DES for pneumoconiosis was higher than that of FSR (P < 0.05).The detection rate of DR combined with DES for mediastinal lymphadenopath, pulmonary infection, emphysema and pleural thickening was higher than that of FSR (P < 0.05 to P < 0.01).At the same time, the small shadow distribution of the same stage pneumoconiosis detected by DR combined with DES was larger than that by FSR.
ConclusionsDR combined with DES has better image quality and detection rate, which can be applied to the examination and diagnosis of pneumoconiosis.
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