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测定甲状腺功能(简称甲功)的经典方法是基础代谢率(BMR)和血浆蛋白结合碘(PBI)。但是,前者易受环境、技术、生理和病理等因素的影响,结果不够准确,后者受摄入外源性碘的影响,而且操作复杂,不便于临床常规采用。近10年来,利用放射性核素测定甲功取得很大进展,出现了许多新方法。本文就放射性核素测定的各种方法及其临床价值,作一介绍。一、甲状腺吸~(131)碘试验吸~(131)碘试验是最早用来测定甲功的放射性核素方法,目前仍广为利用。它是反映甲状腺吸碘、合成和释放甲状腺激素的综合过程。应用初期是用盖革计数管直接测定法,后来逐渐改为闪烁计数管远距离测定法,但前者仍有沿
The classic methods of determining thyroid function (referred to as thyroid function) are basal metabolic rate (BMR) and plasma protein bound iodine (PBI). However, the former is susceptible to environmental, technical, physiological and pathological factors and the result is not accurate enough. The latter is affected by the intake of exogenous iodine, and the operation is complicated and inconvenient for routine clinical use. In the past 10 years, the use of radionuclide determination of a great deal of progress, there have been many new methods. This article on the radionuclide determination of various methods and their clinical value, make an introduction. First, the thyroid suction ~ (131) iodine test absorption ~ (131) iodine test is the earliest method for the determination of radionuclide, is still widely used. It is to reflect the thyroid iodine absorption, synthesis and release of thyroid hormone synthesis process. The initial application is Geiger counter direct measurement method, and later gradually changed to scintillation counting tube distance measurement, but the former is still along