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近年,各种非侵袭性的骨盐定量法问世,并应用于临床,各法的测定部位、方法、精确程度、测定时间及曝光时射线量均不同,因此,要想早期并准确地知道以骨质疏松症为代表的代谢性骨组织疾病的骨质(量)减少,何处骨组织做检测对象、采用哪种定量方法则成为首要问题。首先应该考虑到为达到骨盐定量的目的,①多数病例骨质含量减少可采用筛选检查,或采用精检方法;②骨代谢的周转时,骨皮质与骨松质不同,所以,测定骨皮质时以桡骨或第2中指指骨作为检测对象;测定骨松质时以椎骨等作为检测对象,③观察其经过及判定其治疗效果,重要的是测试的精确程度,应选用测试再现性好的定量方法。
In recent years, a variety of non-invasive bone mineral quantitative methods come out, and applied to clinical, the determination of the site, method, accuracy, measurement time and exposure are different, so in order to early and accurately know Osteoporosis, metabolic bone diseases represented by the reduction of bone mass (amount), where the bone tissue to be detected, the use of which quantitative method has become the primary problem. First of all should be taken to achieve the purpose of quantitative bone salt, ① reduce the majority of cases of bone content can be used screening test, or the use of fine screening methods; ② turnover of bone metabolism, cortical bone and bone cancellous, so the determination of cortical When the radius or the second middle finger phalanx as the test object; determination of cancellous vertebrae as the test object, ③ to observe the passage and determine the treatment effect, it is important that the accuracy of the test should be used to test the reproducibility of a good quantitative method.