高千伏X线摄影,近十年来已逐渐用于各种检查中,尤其是对胸部疾病的诊断价值更大,在矽肺诊断上的应用价值亦初步加以肯定。虽然高千伏X线摄影有许多重要优点,但在实际应用中仍存在一些问题。概括地说就是灰雾的增加和对比度的损害使其细微结构不鲜明,需要采取可靠的途径加以改善。本文仅就这些方面提供一些资料供参考。高千伏X线摄影的特点: 关于高千伏X线摄影的原理已有很多报告,一般地说在诊断上用的高电压是指80到200千伏;如再细分80到100千伏为准高压;100—200千伏为高压,200千伏以上者为超高 High kV radiography, the past decade has been gradually used in a variety of examinations, especially for the diagnosis of chest disease is more valuable in the diagnosis of silicosis value has also been initially affirmed. Although high kV radiography has many important advantages, there are still some problems in practical application. In a nutshell, the increase of fog and the contrast damage make its microscopic structure unclear, which needs to be solved in a reliable way. This article only provides some information on these aspects for reference. High kilovoltage X-ray features: There have been many reports on the principle of high kV radiography. Generally speaking, the high voltage used for diagnosis refers to 80 to 200 kilovolts. If the subdivision is 80 to 100 kilovolts For the quasi-high-pressure; 100-200 kV for high pressure, 200 kV or more for the high