早产儿易患佝偻病早已为人所共知。而且在出生体重极低的婴儿中,发现易患本病者日益增多。早期发现和治疗佝偻病对早产儿的生长发育影响很大。本病在晚期才出现X光片的显著变化。光子吸收测定虽然可以早期发现脱矿质,但这项技术不能 Premature children susceptible to rickets is already well known. And in very low birth weight infants, the disease is found to be increasingly susceptible. Early detection and treatment of rickets has a great impact on the growth and development of premature children. The disease appeared in the late X-ray film significant changes. Photon absorption measurement Although early detection of demineralization, but this technology can not