煤工PMF大块纤维化X线类型研究

Studies on Types of Radiographic Appearance of Coalminers' Progressive Massive Fibrosis

对四川省4个煤矿288例煤工大块纤维化(PMF)X线类型进行了分析。煤工PMF的发生及X线类型与患者的开始接尘年代、工龄、工种及胸片上的小阴影均有一定关系。掘进工PMF多在q、r形阴影基础上形成,而采煤工多在p阴影基础上形成。表明PMF的性质及X线类型,除与患者所接触粉尘的累积剂量有关外,还与粉尘的发生有关,接触岩尘(石英为主)比接触煤尘的矿工更易发生PMF。

Types of radiographic appearance of 288 coalminers'progressive massivefibrosis(PMF)of from coal mines in Sichuan Province were analysed.Theoccurrence and radiographic pattcrn of coalminers'PMF were found to be re-lated to the time of initial dust exposure,working years,working varieties andsmall apacities in theracic radiographic photographs of patients.Most drillers'PMF developed on the basis of q and r opacities,but most coal cutting miners'PMF were on the basis of p opacities.It indicated that occurrence andradiographic pattern of PMF have relationship not only with the amount ofdust accumulated by patient,but the character of dust as well.The miners whoexposed to lithological dust (mostly guarty) develop PMF easier than thoseexposed to coal dust.