【摘要】：對(duì)1205例確診為矽肺的患者分別拍攝普通高仟伏(HkV)胸片和數(shù)字?jǐn)z影(DR)對(duì)比分析診斷期別、小陰影形態(tài)、總體密集度,并觀察不同kV、不同相機(jī)像素和窗位窗寬等投照條件對(duì)胸片塵肺病變、胸片黑白度、胸椎暴露程度的影響。所有診斷專家或不同診斷組對(duì)同一塵肺患者的DR胸片和HkV胸片診斷期別、小陰影形態(tài)、總體密集度的判定結(jié)果非常接近。用110 kV、120 kV所拍攝的DR胸片顯示的肺紋理和病變邊緣比用80 kV、90 kV拍攝的DR胸片要清晰;像素尺寸小、像素值越高的相機(jī)打印出的胸片其肺野外帶肺紋理以及塵肺病變邊緣更清晰、銳利,更利于觀察。提示DR技術(shù)有利于提高胸片質(zhì)量和塵肺病診斷準(zhǔn)確率,建議塵肺的DR攝影以110~120 kV為宜,對(duì)相機(jī)的像素也應(yīng)作出具體的要求。
[Abstract]:1205 patients with silicosis were compared with conventional high KV (HkV) chest radiographs and digital (DR) to analyze the diagnostic period, the shape of small shadows, and the overall density. The effects of different camera pixels and window width on pneumoconiosis, black-and-white degree of chest film and exposure degree of thoracic vertebrae were observed. The results of Dr chest radiographs and HkV chest radiographs of the same pneumoconiosis patients were similar to those of all diagnostic experts or different diagnostic groups. The lung texture and lesion edge of Dr chest radiographs taken with 110 kV or 120 kV radiographs were clearer than those of Dr chest films taken with 80 kV or 90 kV radiographs. The smaller pixel size and the higher the pixel value, the clearer the lung texture and the edge of pneumoconiosis. Sharpness is easier to observe. Dr technique is helpful to improve the quality of chest radiographs and the diagnostic accuracy of pneumoconiosis. It is suggested that 110 ~ 120kV should be used in Dr photography of pneumoconiosis, and the pixel of camera should be required.
【作者單位】： 廣西壯族自治區(qū)職業(yè)病防治研究院;
【基金】：廣西自然科學(xué)基金資助項(xiàng)目(桂科自0991224)
【分類號(hào)】：R135.2

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