Burgos F J, Minaya A, Saez J C, Sánchez J, Sanz J, Avila S, Escudero Barrilero A
Servicio de Urología, Hospital Ramón y Cajal, Madrid, Espana.
Arch Esp Urol. 1993 Jun;46(5):392-8.
Dual-energy radiographic bone densitometry is utilized to determine the bone mineral content in patients with osteoporosis. The present in vitro experimental study investigated the usefulness of densitometry in determining stone composition and in evaluating the mineral and non mineral phases of the calculus. For the study we analyzed 114 calculi of 6 different chemical composition (calcium oxalate monohydrate, calcium oxalate dihydrate, magnesium ammonium phosphate, phosphate carbonate, uric acid and phosphate oxalate). The phosphate carbonate calculi had the highest mineral density, whereas the uric acid calculi had the lowest and contained more water. Although densitometry appears to be of little value in determining stone composition, it provides information on the mineral and non mineral phases of the calculus.
双能X线骨密度测定法用于确定骨质疏松症患者的骨矿物质含量。目前的体外实验研究探讨了密度测定法在确定结石成分以及评估结石的矿物质和非矿物质相方面的实用性。在本研究中，我们分析了114颗具有6种不同化学成分（一水草酸钙、二水草酸钙、磷酸镁铵、碳酸磷酸盐、尿酸和草酸磷酸盐）的结石。碳酸磷酸盐结石的矿物质密度最高，而尿酸结石的矿物质密度最低且含水量更多。尽管密度测定法在确定结石成分方面似乎价值不大，但它能提供有关结石矿物质和非矿物质相的信息。
