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骨盐量的测定测定骨盐量采用~(125)Ⅰ等光吸收法(单光吸收法或双光吸收法)。前者适于周围软组织少的桡骨与尺骨的骨盐量测定,后者用于周围软组织多的椎骨、大腿骨的骨盐量测定。最近,应用定量CT(QCT)可以分别测定椎骨密质骨和松质骨。在骨代谢快的松质骨,骨质疏松症等的骨盐降低比密质骨出现的早。测量小儿桡、尺骨骨盐量时,受骨生长的骨宽度增大的影响(不反应骨密质,反应骨容
Determination of bone salt content Determination of bone salt using ~ (125) Ⅰ and other light absorption method (single light absorption method or double light absorption method). The former is suitable for measuring the amount of bone and salt in the radius and ulna with less surrounding soft tissues. The latter is used to measure the amount of bone salt in the vertebrae and femur of the surrounding soft tissues. Recently, Quantitative CT (QCT) can be used for the determination of vertebrae and cancellous bone, respectively. In bone metabolism fast cancellous bone, osteoporosis and other bone salts lower than the early emergence of dense bone. Measurement of pediatric radial, ulnar bone salt volume, bone growth by the impact of bone width increases (does not respond to bone mass, reaction bone content