摘 要：通过对低仟伏、中仟伏、高仟伏摄影胸部正位片各500例的照片等级、胸部细微结构及重要解剖结构的显示、清晰度、对比度及层次的对比研究，得出胸部中仟伏摄影提高了照片有用信息量，照片对比度，清晰度较好，照片质量较高，认为胸部中仟伏摄影应作为常规检查方法推广使用。

The feasibility of middlevoltage chest X-ray photographing

Du Maoyun

    ( AffiliatedSouth-West Hospital of Youjiang Medical College

    for Nationalities, Bose, Guangxi, P.R.China 533000 )

Abstract： The chest eutopic photograph's grade, minute structure,and major anatomic site of 500 hundred cases of middle voltage X-ray photographing wereretrospectively studied, in comparison with those of 500 hundred cases of low and highvoltage X-ray photographing, respectively. It was found that middle voltage chest X-rayphotographs had the improved practical information, better contrast and clarity, and quitegood quality. It is recommended that the middle voltage chest X-ray photographying shouldbe regarded as an item of routine clinical examination.

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