论文部分内容阅读
一、放射性核索骨显像的原理骨的无机盐成分中主要是羟基磷灰石晶体[Hydroxyapatite crystal,Ca_(10)(PO_4)_(?)(OH)_2],它象一个离子交换柱与周围环境不断进行离子交换。如果血液中存在某些趋骨的元素或化合物,它们会以很快的速度聚集到骨骼里的这个离子交换柱上。放射性核素骨显像就是基于这一原理建立的一种新的诊断方法。正常骨骼的各部位血液供应和组织化学状态各不相同,因此骨显像剂的分布是不均
First, the principle of radionuclide imaging Bone inorganic salt composition is mainly hydroxyapatite crystal [Hydroxyapatite crystal, Ca_ (10) (PO_4) _ (?) (OH) _2], which resembles an ion exchange column Ion exchange with the surrounding environment. If there are certain elements or compounds in the blood that tend to stick to the bone, they will accumulate on this ion exchange column in the bone at a very rapid rate. Radionuclide bone imaging is based on this principle to establish a new diagnostic method. The normal blood supply and histochemical status of various parts of the bone vary, so the distribution of bone imaging agent is not uniform