Direct readout of bone mineral content using radionuclide absorptiometry

摘要: Abstract A device has been constructed and tested which provides immediate readout of bone mineral content width from absorptiometric scans with low-energy radionuclides (such as 125 I). The basis this analog system is a logarithmic converter-integrator coupled precision linear ratemeter. provided accurate reliable results on standards ashed sections. standard deviation for measurements over year was about 1 per cent; the residuals regression line predicting ash weight sections 1·5 cent, but part appeared due to variability in rather than limitations instrumentation. Clinical were made 100 patients direct system, these highly correlated digital scan data same patients. used successfully field studies surveys well clinical observations. Such an several advantages previously-used handling data, including lower operational equipment costs, greater mobility, availability results.